Explore Scientific - O'Telescope

Explore Scientific T2 Ring - NIKON Field Flattener Adapter [ES-49-20000]

$27.99 USD

Explore Scientific: Connect your Bresser Microscope or Telescope with a Nikon SLR camera and take images or videos of your observed object! The Bresser T-Mount is the connecting piece between the camera adapter and SLR camera. To find out what T2-ring you need, look into the instruction manual of your camera.This T-ring has a working length of 8.5 mm.

Out of Stock

Explore Scientific T2 Ring - Canon EOS Field Flattener Adapter [ES-49-21350]

$27.99 USD

Explore Scientific: Connect your Microscope or Telescope with a Canon EOS SLR camera and take images or videos* of your observed object! T-Mounts are the connecting piece between the camera adapter and the SLR camera. Please read the instruction manual of your camera to find out which T-Mount you need, look into the instruction manual of your camera.

Out of Stock

Hard Carrying Case for ES-ED80mm and EDT80mm CF [ES-CC080-01]

$199.99 USD

1 in stock

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Explore Scientific: Hard Carrying Case Designed for the Essential Series ED80mm White Tube and EDT80mm CF Explore Scientific Telescope

Your telescope is much more than an observation aid. It is your personal pathway to the stars, and protecting it while it is in storage or transit should be a priority.

Designed specifically for Explore Scientific’s ED80 Telescopes, this deluxe storage case offers that ideal combination of security and portability.

Inside, it features a molded foam interior with fitted housings to carefully cradle and easily organize your device and its accessories. Outside, its hard outer shell has reinforced edges, sturdy handles and a clamping lock system for grab-and-go convenience.

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$Explore Scientific Replacement Cradle Ring Set for 152 mm Doublet Refractor [ES-DAR152CRDL]$

Explore Scientific Replacement Cradle Ring Set for 152 mm Doublet Refractor [ES-DAR152CRDL]

$92.39 USD

Explore Scientific: Replacement cradle ring set with a slotted carry handle for Doublet AR Series 152mm Telescope. Inside Dimensions = 6.1''; 154mm. This Explore Scientific Replacement Cradle Ring Set will accept the Explore Scientific 152 mm Doublet Achromatic Refractor.

If your original Ring Set was damaged, you can use this product as an exact replacement.The hinged ring system separates easily by loosening the over-sized metal thumbscrews, and locks securely back into place once the OTA has been nestled inside the rings. Each extruded aluminum ring set is topped with a slotted carry handle so that it is easy to move your telescope around when it is off the mount. Attach a camera, guide scope, or other accessory to the top of the handle with standard 1/4-20 bolts. Each cradle ring assembly comes with a dovetail plate for quick attachment to a variety of ''Vixen-style'' mounts, including the Twilight Mount from Explore Scientific.

Out of Stock

Explore Scientific 2'' Diagonal [ES-DD02-00CF]

$169.99 USD

Explore Scientific: The EXPLORE SCIENTIFIC 2″ DIAGONAL Dielectric-Coated Diagonal Mirror comes complete with 1.25-inch Adapter and dust covers. Solid construction and light weight, this first suface coated diagonal mirror reflects 99% of the light to help maintain the brightest possible image from your telescope.

The insert barrel is a double taper, so it can be smoothly inserted or withdrawn from the focuser. The wide part of the taper prevents the diagonal from accidently falling out of the focuser if the set screw loosens up. Eyepieces are secured in the diagonal with a compression ring lock on both the two-inch eyepiece holder and the 1.25-inch eyepiece holder.

Specifications:

Weight: 1 lb.
Lenght: 104,8mm
Widht: 60,9mm
Height: 127,0mm

Out of Stock

Explore Scientific 3'' Diagonal [ES-DD03-01CF]

$489.99 USD

Explore Scientific: The EXPLORE SCIENTIFIC 3″ DIAGONAL Dielectric-Coated Diagonal Mirror comes complete with 2 inch Adapter; 1.25-inch Adapter and dust covers. Solid construction and light weight, this first suface coated diagonal mirror reflects 99% of the light to help maintain the brightest possible image from your telescope.

The insert barrel is a double taper, so it can be smoothly inserted or withdrawn from the focuser. The wide part of the taper prevents the diagonal from accidently falling out of the focuser if the set screw loosens up. Eyepieces are secured in the diagonal with a compression ring lock on both the two-inch eyepiece holder and the 1.25-inch eyepiece holder.

Specifications:

Weight: 2 lb.
Lenght: 104,8mm
Widht: 60,9mm
Height: 127,0mm

Out of Stock

Explore Scientific ED127mm Triplet Essential Series [ES-ED127075-03-CLEARANCE]

$1,599.99 USD ~~$1,999.99 USD~~

1 in stock On sale

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Explore Scientific: Great for astrophotography, EXPLORE SCIENTIFIC ED127MM TRIPLET ESSENTIAL SERIES can capture in stunning detail many of the night sky’s most notable treasures.

With its true diffraction-limited optics and ample aperture, this versatile model can showcase deep sky delights like the edge-on Sombrero Galaxy with its distinct bulging center or the spiraling beauty of the face-on Pinwheel Galaxy as easily as it can reveal the intricacies of the Moon’s winding Hadley Rille.

Featuring an air-spaced triplet optical design that virtually eliminates chromatic aberrations, this telescope generates brilliant high-contrast images by combining genuine HOYA extra-low dispersion (ED) glass and proprietary EMD enhanced multi-layer coatings on all optical surfaces. As an added bonus, its quick set-up allows you to spend more time at the eyepiece to make the most of your nights under the stars.

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Explore Scientific Small Soft-Sided Carrying Case for eyepieces [ES-EPCASE]

$38.99 USD

Explore Scientific: The compact versatile soft-sided case is one of the most versatile storage solutions made. It’s the perfect combination of protection and organization for everything from Explore Scientific EP’s to the smallest batteries, cables and accessories. We include it with our 62°, 68°, 82° and 100° Eyepiece Kits. The walls and dividers are made with a layered combination of protective EVA foam and rigid PE board to keep contents safe (and from shifting between compartments) inside any bag.

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Explore Scientific 100° 14mm - 2'' [ES-EPWP10014-01]

$549.99 USD

1 in stock

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Explore Scientific: Explore Scientific eyepiece, 14 mm focal length, 100 ° visible field, 50.8 mm (2 ").

In recent years, Explore Scientific eyepieces have built a solid reputation in terms of quality, The eyepiece of Explore is a pleasant and easy experience, the image is beautiful from the first glance.

This eyepiece offers an apparent wide field of 100 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

Each eyepiece of the 100 ° series is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings. To ensure watertightness, each eyepiece of the 100 ° series is factory tested by immersing it under water for 30 minutes to a depth of one meter.

All 100 ° eyepieces are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 100 ° delivers sharp, contrasting images. The apparent field of 100 ° is so wide, that you can keep in sight a celestial object observed in a non-motorized instrument.

The focal length of the Explore Scientific 100 ° eyepiece of 14 mm predestines it at medium magnifications (71x on an optical tube of 1 meter of focal length). It is therefore versatile and suitable for planetary observations (Moon, planets, Sun), double or multiple stars, as well as observation of planetary nebulae and the search for details in nebulae and galaxies.

The eye relief of 14 mm is 14.5 mm: this means that the image remains comfortable up to 14.5 mm above the lens, to fully enjoy the field offered by the lens, ocular. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

The inside of the sink is threaded in M48 x 0.75 mm to accommodate filters with a diameter of 50.8 mm (2 "), Such as interference filters of type OIII, UHC, H-Beta..., Which serve to enhance contrast on many nebulae.

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Explore Scientific 100° 20mm [ES-EPWP10020-00]

$549.99 USD

2 in stock

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Explore Scientific:Explore Scientific eyepiece, 20 mm focal length, 100 ° field of view, 50.8 mm (2 ").

A few years ago, Explore Scientific eyepieces have developed a solid reputation in terms of quality, The eyepiece of Explore is a pleasant and easy experience, the image is beautiful from the first glance.

This eyepiece offers an apparent wide field of 100 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

Each eyepiece of the 100 ° series is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings. To ensure watertightness, each eyepiece of the 100 ° series is factory tested by immersing it under water for 30 minutes to a depth of one meter.

All 100 ° eyepieces are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 100 ° delivers sharp, contrasting images. The apparent field of 100 ° is so wide, that you can keep in sight a celestial object observed in a non-motorized instrument.

The focal length of the 20 "Scientific Explore Scientific eyepiece predestines it at low magnifications (47x on an optical tube of 1 meter of focal length), making it very suitable for the observation in detail of large nebulae or galaxies, clusters Galaxies or comets, while benefiting from a very wide field of vision.

The eye relief of 20 mm is 14.5 mm: this means that the image remains comfortable up to a distance of 14.5 mm above the lens, to take full advantage of the field offered by the lens, ocular. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

The inside of the sink is threaded in M48 x 0.75 mm to accommodate 50.8 mm (2 ") diameter filters, Such as interference filters of type OIII, UHC, H-Beta..., Which serve to enhance the contrast on many nebulae

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Explore Scientific 100° 25mm - 2" [ES-EPWP10025-01]

$849.99 USD

2 in stock

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Explore Scientific: Explore Scientific Eyepiece, 25 mm focal length, 100 ° visible field, 2"( 50.8 mm).

Over the past few years, the Explore Scientific eyepieces have forged a solid reputation in terms of quality and competitive rates. Looking in an eyepiece Explore is a pleasant and easy experience, the picture is beautiful from the first glance.

This eyepiece offers an apparent wide field of 100 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

Each eyepiece of the 100 ° series is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings. To ensure watertightness, each eyepiece of the 100 ° series is factory tested by immersing it under water for 30 minutes to a depth of one meter.

All 100 ° eyepieces are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 100 ° delivers sharp, contrasting images. The apparent field of 100 ° is so wide, that you can keep in sight a celestial object observed in a non-motorized instrument.

The focal length of the Explore Scientific 100 ° eyepiece of 25 mm predestines it at low magnifications (40x on an optical tube of 1 meter of focal length), making it very suitable for the observation in detail of large nebulae or galaxies, clusters Galaxies or comets, while benefiting from a very wide field of vision.

The 25 mm eye relief is 14.5 mm: this means that the image remains comfortable up to 14.5 mm above the lens, in order to take full advantage of the field offered by the lens. ocular. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

The inside of the sink is threaded in M48 x 0.75 mm to accommodate filters with a diameter of 50.8 mm (2 "), Such as interference filters of type OIII, UHC, H-Beta..., Which serve to enhance contrast on many nebulae.

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Explore Scientific 100° 30mm - 3" [ES-EPWP10030-01]

$999.99 USD

specialorder

Explore Scientific: Scientific eyepiece, 30 mm focal length, 100 ° visible field, 3" (76.2 mm).

In recent years, Explore Scientific eyepieces have built a solid reputation in terms of quality, The eyepiece of Explore is a pleasant and easy experience, the image is beautiful from the first glance.

This eyepiece offers an apparent wide field of 100 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

Each eyepiece of the 100 ° series is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings. To ensure watertightness, each eyepiece of the 100 ° series is factory tested by immersing it under water for 30 minutes to a depth of one meter.

All 100 ° eyepieces are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 100 ° delivers sharp, contrasting images. The apparent field of 100 ° is so wide, that you can keep in sight a celestial object observed in a non-motorized instrument.

The focal length of the 30 ° Scientific Explore Scientific eyepiece predestines it to low magnifications (33x on an optical tube of 1 meter of focal length), making it very suitable for the observation in detail of large nebulae or galaxies, clusters Galaxies or comets, while benefiting from a very wide field of vision.

The 30 mm eye relief is 19 mm: this means that the image remains comfortable up to a distance of 19 mm above the lens, in order to take full advantage of the field of view offered by the eyepiece. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

Finally, it fits into the eyepiece holders with 76.2 mm (3 ") bottles: it should be used on a good eyepiece holder, because the weight of the eyepiece 100 ° 30 mm s' Raises to 2.35 kg.

Out of Stock

Explore Scientific 100° 5.5mm - 2'' [ES-EPWP10055-01]

$449.99 USD

Explore Scientific: Scientific eyepiece, 5.5 mm focal length, 100 ° visible field, 50.8 mm (2 ").
Over the past few years, the Explore Scientific eyepieces have forged a solid reputation in terms of quality and competitive rates. Looking in an eyepiece Explore is a pleasant and easy experience, the picture is beautiful from the first glance.

This eyepiece offers an apparent wide field of 100 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

Each eyepiece of the 100 ° series is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings. To ensure watertightness, each eyepiece of the 100 ° series is factory tested by immersing it under water for 30 minutes to a depth of one meter.

All 100 ° eyepieces are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 100 ° delivers sharp, contrasting images. The apparent field of 100 ° is so wide, that you can keep in sight a celestial object observed in a non-motorized instrument.

The focal length of the Scientific 100 ° Scientific eyepiece of 5.5 mm predestines it to high magnifications (182x on an optical tube of 1 meter of focal length). It remains versatile, adaptable to planetary observations (Moon, planets, Sun), double or multiple stars, as well as observation of planetary nebulae and the search for details in nebulae and galaxies.

The 5.5 mm eye relief is 10.5 mm, which means that the image remains comfortable up to a distance of 10.5 mm above the lens, in order to take full advantage of the field offered by the eyepiece. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

The inside of the sink is threaded in M48 x 0.75 mm to accommodate filters with a diameter of 50.8 mm (2 "), Such as interference filters of type OIII, UHC, H-Beta..., Which serve to enhance contrast on many nebulae.

Out of Stock

Explore Scientific 100° 9mm - 2'' [ES-EPWP1009-01]

$549.99 USD

2 in stock

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Explore Scientific: Scientific eyepiece, 9 mm focal length, 100 ° visible field, 50.8 mm (2 ").
Over the past few years, the Explore Scientific eyepieces have forged a solid reputation in terms of quality and competitive rates. Looking in an eyepiece Explore is a pleasant and easy experience, the picture is beautiful from the first glance.

This eyepiece offers an apparent wide field of 100 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

Each eyepiece of the 100 ° series is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings. To ensure watertightness, each eyepiece of the 100 ° series is factory tested by immersing it under water for 30 minutes to a depth of one meter.

All 100 ° eyepieces are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 100 ° delivers sharp, contrasting images. The apparent field of 100 ° is so wide, that you can keep in sight a celestial object observed in a non-motorized instrument.

The focal length of the Scientific 100 ° Scientific eyepiece of 9 mm predestines it at fairly high magnifications (125x on an optical tube of 1 meter of focal length). It remains versatile, adaptable to planetary observations (Moon, planets, Sun), double or multiple stars, as well as observation of planetary nebulae and the search for details in nebulae and galaxies.

The 9 mm eye relief is 12.5 mm: this means that the image remains comfortable up to a distance of 12.5 mm above the lens, to take full advantage of the field offered by the camera. ocular. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

The inside of the sink is threaded in M48 x 0.75 mm to accommodate filters with a diameter of 50.8 mm (2 "), Such as interference filters of type OIII, UHC, H-Beta..., Which serve to enhance contrast on many nebulae.

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Explore Scientific 100° Eyepieces Kit [ES-EPWP100KIT]

$1,499.99 USD

Explore Scientific: Explore Ultra-Wide Eyepieces – Comfort, Quality, Value. The Explore Scientific 100° Series™ eyepieces are hyper-wide class oculars that can transform your visual astronomy experience. You may be startled at the amazingly wide expanse of inky black sky you behold the first time you bring your eye to a 100° Series eyepiece, and after awhile, you may even forget that you have an eyepiece between you and the universe! With an apparent field of view that is close to the maximum for hyper-wide eyepiece design, objects are not only easier to locate, but for non-driven telescopes the object will stay in the field of view for a very long time before any adjustments need to be made.

This kit includes a 100° 5.5mm, 100° 9mm and 100° 14mm Argon-Purged Waterproof Eyepieces and a soft sided case.

Out of Stock

Explore Scientific 120° 9mm [ES-EPWP12009-01]

$999.99 USD

Explore Scientific: With its apparent field of 120 degrees, this superb eyepiece offers simply the best. Argon Purged waterproof (the N2 purging was upgraded to Ar because of its lower permeability through the polymer seals) As with all Explore Scientific Products, it carries the industry’s most extensive warranty, the STAR program.

Specifications:

Focal length 9mm AFOV 120 Degrees EMD 15-layer Multi-Coating 12 elements/8 groups
Eye Relief – 13mm
Barrel – 2-inch
Weight – 3 pounds

Out of Stock

Explore Scientific 68° Series 16mm - 1.25" [ES-EPWP6816-01]

$179.99 USD

4 in stock

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Explore Scientific: Scientific eyepiece, 16 mm focal length, visible field of 68 °,Barrel size 31.75 mm (1.25").

Over the past few years, the Explore Scientific eyepieces have forged a solid reputation in terms of quality and competitive rates. Looking in an eyepiece Explore is a pleasant and easy experience, the picture is beautiful from the first glance.

This eyepiece offers an apparent wide field of 68 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

The Explore Scientific 68 ° eyepiece range is well suited for the amateur astronomer looking for optical quality while remaining within a moderate budget. It is an excellent compromise for owners of telescopes with diameters between 150 mm and 300 mm. Observing the Orion nebula in these eyepieces through a Dobson telescope of 200 mm reserves very pleasant surprises.

Each eyepiece of the series 68 ° is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings.

All eyepieces in the 68 ° series are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 68 ° delivers sharp, contrasting images. The apparent field of 68 ° is relatively wide, allowing you to keep a celestial object observed in a non-motorized instrument long enough in sight.

The focal length of the Explore Scientific 68 ° eyepiece of 16 mm predestines it to medium to medium magnification (62x on an optical tube of 1 meter of focal length), making it very versatile both for planetary observations (Moon, planets, Sun) , As well as looking for details in nebulae and galaxies, while keeping a large field of view.

The eye relief of 16 mm is 11.9 mm: this means that the image remains comfortable up to 11.9 mm above the lens, to fully enjoy the field offered by the lens, ocular. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

Finally, it fits into the 1.25 "(31.75 mm) eyepiece holders. The inside of the sink is threaded in M28.5 x 0.6 mm to accommodate filters with 31.75 mm (1.25"), Such as interference filters of type OIII, UHC, H-Beta, etc., which serve to enhance the contrast on many nebulae.

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Explore Scientific 68° Series 20mm - 1.25'' [ES-EPWP6820-01]

$219.99 USD

3 in stock

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Explore Scientific: Explore Scientific Eyepiece, 20 mm focal length, 68 ° visible field, 31.75 mm (1.25").

Over the past few years, the Explore Scientific eyepieces have forged a solid reputation in terms of quality and competitive rates. Looking in an eyepiece Explore is a pleasant and easy experience, the picture is beautiful from the first glance.

This eyepiece offers an apparent wide field of 68 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

The Explore Scientific 68 ° eyepiece range is well suited for the amateur astronomer looking for optical quality while remaining within a moderate budget. It is an excellent compromise for owners of telescopes with diameters between 150 mm and 300 mm. Observing the Orion nebula in these eyepieces through a Dobson telescope of 200 mm reserves very pleasant surprises.

Each eyepiece of the series 68 ° is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings.

All eyepieces in the 68 ° series are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 68 ° delivers sharp, contrasting images. The apparent field of 68 ° is relatively wide, allowing you to keep a celestial object observed in a non-motorized instrument long enough in sight.

The focal length of the Explore Scientific 68 ° eyepiece of 20 mm predestines it at fairly low to medium magnifications (50x on an optical tube of 1 meter of focal length), making it very versatile for planetary observations (Moon, planets, Sun) , As well as looking for details in nebulae and galaxies, while keeping a large field of view.

The eye relief of 20 mm is 15.3 mm: this means that the image remains comfortable up to 15.3 mm above the lens, to fully enjoy the field offered by the lens, ocular. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

Finally, it fits into the 1.25 "(31.75 mm) eyepiece holders. The inside of the sink is threaded in M28.5 x 0.6 mm to accommodate filters with 31.75 mm (1.25" ), Such as interference filters of type OIII, UHC, H-Beta, etc., which serve to enhance the contrast on many nebulae.

Add to cart

Explore Scientific 68° Series 24mm - 1.25'' [ES-EPWP6824-01]

$189.99 USD

Explore Scientific: Explore Scientific Eyepiece, 24 mm focal length, 68 ° visible field, 31.75 mm (1.25 ").

Over the past few years, the Explore Scientific eyepieces have forged a solid reputation in terms of quality and competitive rates. Looking in an eyepiece Explore is a pleasant and easy experience, the picture is beautiful from the first glance.

This eyepiece offers an apparent wide field of 68 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

The Explore Scientific 68 ° eyepiece range is well suited for the amateur astronomer looking for optical quality while remaining within a moderate budget. It is an excellent compromise for owners of telescopes with diameters between 150 mm and 300 mm. Observing the Orion nebula in these eyepieces through a Dobson telescope of 200 mm reserves very pleasant surprises.

Each eyepiece of the series 68 ° is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings.

All eyepieces in the 68 ° series are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 68 ° delivers sharp, contrasting images. The apparent field of 68 ° is relatively wide, allowing you to keep a celestial object observed in a non-motorized instrument long enough in sight.

The focal length of the Scientific 68 ° eyepiece of 24 mm predestines it at low magnifications (42x on an optical tube of 1 meter of focal length), making it very suitable for the observation in detail of large nebulae or galaxies, clusters Galaxies or comets, while benefiting from a very wide field of vision.

The 24 mm eye relief is 18.4 mm, which means that the image remains comfortable up to a distance of 18.4 mm above the lens, ocular. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

Finally, it fits into the 1.25 "(31.75 mm) eyepiece holders. The inside of the sink is threaded in M28.5 x 0.6 mm to accommodate filters with 31.75 mm (1.25" ), Such as interference filters of type OIII, UHC, H-Beta, etc., which serve to enhance the contrast on many nebulae.

Out of Stock

Explore Scientific 68° Series 28mm - 2'' [ES-EPWP6828-01]

$239.99 USD

1 in stock

Back Order / Waiting List

Explore Scientific: Explore Scientific Eyepiece, 28 mm focal length, 68 ° visible field, 2" (50.8 mm).

Over the past few years, the Explore Scientific eyepieces have forged a solid reputation in terms of quality and competitive rates. Looking in an eyepiece Explore is a pleasant and easy experience, the picture is beautiful from the first glance.

This eyepiece offers an apparent wide field of 68 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

The Explore Scientific 68 ° eyepiece range is well suited for the amateur astronomer looking for optical quality while remaining within a moderate budget. It is an excellent compromise for owners of telescopes with diameters between 150 mm and 300 mm. Observing the Orion nebula in these eyepieces through a Dobson telescope of 200 mm reserves very pleasant surprises.

Each eyepiece of the series 68 ° is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings.

All eyepieces in the 68 ° series are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 68 ° delivers sharp, contrasting images. The apparent field of 68 ° is relatively wide, allowing you to keep a celestial object observed in a non-motorized instrument long enough in sight.

The focal length of the Explore Scientific 68 ° eyepiece of 28 mm predestines it at low magnifications (36x on an optical tube of 1 meter of focal length), making it very suitable for detailed observation of large nebulae or galaxies, clusters of Galaxies or comets, while benefiting from a very wide field of vision.

The 28 mm eye relief is 21.6 mm: this means that the image remains comfortable up to a distance of 21.6 mm above the lens, in order to take full advantage of the field offered by the camera. ocular. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

The inside of the sink is threaded in M48 x 0.75 mm to accommodate filters with a diameter of 50.8 mm (2 "), Such as interference filters of type OIII, UHC, H-Beta..., Which serve to enhance contrast on many nebulae.

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Explore Scientific 68° Series 34mm - 2'' [ES-EPWP6834-01]

$319.99 USD

1 in stock

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Explore Scientific: Scientific Eyepiece, 34 mm focal length, 68 ° visible field, 2" (50.8 mm).

Over the past few years, the Explore Scientific eyepieces have forged a solid reputation in terms of quality and competitive rates. Looking in an eyepiece Explore is a pleasant and easy experience, the picture is beautiful from the first glance.

This eyepiece offers an apparent wide field of 68 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

The Explore Scientific 68 ° eyepiece range is well suited for the amateur astronomer looking for optical quality while remaining within a moderate budget. It is an excellent compromise for owners of telescopes with diameters between 150 mm and 300 mm. Observing the Orion nebula or the Pleiades in these eyepieces through a 200 mm Dobson telescope reserves very pleasant surprises.

Each eyepiece of the series 68 ° is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings.

All eyepieces in the 68 ° series are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 68 ° delivers sharp, contrasting images. Their apparent field of 68 ° is relatively wide, allowing you to keep a celestial object observed in a non-motorized instrument for a long time.

The focal length of the Explore Scientific 68 ° eyepiece of 34 mm predestines it at low magnifications (29x on an optical tube of 1 meter of focal length), making it very suitable for observation of large nebulae or galaxies, clusters of galaxies Or comets, while benefiting from a very wide field of vision.

The 34 mm eye relief is 26.4 mm: this means that the image remains comfortable up to a distance of 26.4 mm above the lens, in order to take full advantage of the field offered by the lens. ocular. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

The inside of the sink is threaded in M48 x 0.75 mm to accommodate filters with a diameter of 50.8 mm (2 "), Such as interference filters of type OIII, UHC, H-Beta..., Which serve to enhance contrast on many nebulae.

Add to cart

Explore Scientific 82° Series 11mm - 1.25'' [ES-EPWP8211-01]

$199.99 USD

1 in stock

Back Order / Waiting List

Explore Scientific: Explore Scientific eyepiece, 11 mm focal length, 82 ° visible field, 31.75 mm (1.25 ").

In recent years, Explore Scientific eyepieces have gained a solid reputation in terms of quality, The eyepiece of Explore is a pleasant and easy experience, the image is beautiful from the first glance.

This eyepiece offers an apparent wide field of 82 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

Each eyepiece of the series 82 ° is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings.

All 82 ° series eyepieces are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 82 ° delivers sharp, contrasting images. The apparent field of 82 ° is wide enough to be able to keep in sight a celestial object observed in a non-motorized instrument.

The focal length of the Explore Scientific 82 ° eyepiece of 11 mm predestines it at medium magnifications (91x on an optical tube of 1 meter of focal length). It is therefore very versatile, suitable for planetary observations (Moon, planets, Sun), double or multiple stars, as well as observation of planetary nebulae and the search for details in nebulae and galaxies.

The 11 mm eye relief is 15.6 mm: this means that the image remains comfortable up to 15.6 mm above the lens, to fully enjoy the field offered by the lens, ocular. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

Finally, it fits into the 1.25 "(31.75 mm) eyepiece holders. The inside of the sink is threaded in M28.5 x 0.6 mm to accommodate filters with 31.75 mm (1.25" ), Such as interference filters of type OIII, UHC, H-Beta, etc., which serve to enhance the contrast on many nebulae.

Add to cart

Explore Scientific 82° Series 14mm - 1.25'' [ES-EPWP8214-01]

$199.99 USD

Explore Scientific: Scientific eyepiece, focal length 14 mm, apparent field 82 °, 31.75 mm (1.25 ").
Over the past few years, the Explore Scientific eyepieces have forged a solid reputation in terms of quality and competitive rates. Looking in an eyepiece Explore is a pleasant and easy experience, the picture is beautiful from the first glance.

This eyepiece offers an apparent wide field of 82 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

Each eyepiece of the series 82 ° is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings.

All 82 ° series eyepieces are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 82 ° delivers sharp, contrasting images. The apparent field of 82 ° is wide enough to be able to keep in sight a celestial object observed in a non-motorized instrument.

The focal length of the Explore Scientific 82 ° eyepiece of 14 mm predestines it at medium magnifications (71x on an optical tube of 1 meter of focal length). It is therefore versatile and suitable for planetary observations (Moon, planets, Sun), double or multiple stars, as well as observation of planetary nebulae and the search for details in nebulae and galaxies.

The 14 mm eye relief is 15.6 mm: this means that the image remains comfortable up to 15.6 mm above the lens, in order to take full advantage of the field offered by the lens. ocular. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

Finally, it fits into the 1.25 "(31.75 mm) eyepiece holders. The inside of the sink is threaded in M28.5 x 0.6 mm to accommodate filters with 31.75 mm (1.25"), Such as interference filters of type OIII, UHC, H-Beta, etc., which serve to enhance the contrast on many nebulae.

Out of Stock

Explore Scientific 82° Series 18mm - 2'' [ES-EPWP8218-01]

$299.99 USD

Explore Scientific: Scientific eyepiece, focal length 18 mm, apparent field of 82 °, 50.8 mm (2 ").

Over the past few years, the Explore Scientific eyepieces have forged a solid reputation in terms of quality and competitive rates. Looking in an eyepiece Explore is a pleasant and easy experience, the picture is beautiful from the first glance.

This eyepiece offers an apparent wide field of 82 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

Each eyepiece of the series 82 ° is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings.

All 82 ° series eyepieces are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 82 ° delivers sharp, contrasting images. The apparent field of 82 ° is wide enough to be able to keep in sight a celestial object observed in a non-motorized instrument.

The focal length of the Explore Scientific 82 ° eyepiece of 18 mm predestines it at fairly low magnifications (55x on an optical tube of 1 meter of focal length), making it very versatile for planetary observations (Moon, planets, Sun), and For the search for details in nebulae and galaxies, while keeping a very wide field of vision.

The 18 mm eye relief is 13 mm: this means that the image remains comfortable up to a distance of 13 mm above the lens, in order to take full advantage of the field offered by the eyepiece. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

The inside of the sink is threaded in M48 x 0.75 mm to accommodate filters with a diameter of 50.8 mm (2 "), Such as interference filters of type OIII, UHC, H-Beta..., Which serve to enhance contrast on many nebulae.

Out of Stock

Explore Scientific 82° Series 24mm - 2'' [ES-EPWP8224-01]

$329.99 USD

Explore Scientific: Scientific Eyepiece, 24 mm focal length, 82 ° visible field, 50.8 mm (2 ").

Over the past few years, the Explore Scientific eyepieces have forged a solid reputation in terms of quality and competitive rates. Looking in an eyepiece Explore is a pleasant and easy experience, the picture is beautiful from the first glance.

This eyepiece offers an apparent wide field of 82 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

Each eyepiece of the series 82 ° is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings.

All 82 ° series eyepieces are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 82 ° delivers sharp, contrasting images. The apparent field of 82 ° is wide enough to be able to keep in sight a celestial object observed in a non-motorized instrument.

The focal length of the Explore Scientific 82 ° 24mm eyepiece predestines it at low magnifications (42x on an optical tube of 1 meter of focal length), making it very suitable for the observation in detail of large nebulae or galaxies, clusters Galaxies or comets, while benefiting from a very wide field of vision.

The 24 mm eye relief is 17.5 mm: this means that the image remains comfortable up to a distance of 17.5 mm above the lens, in order to take full advantage of the field offered by the lens. ocular. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

The inside of the sink is threaded in M48 x 0.75 mm to accommodate filters with a diameter of 50.8 mm (2 "), Such as interference filters of type OIII, UHC, H-Beta..., Which serve to enhance contrast on many nebulae.

Out of Stock

Explore Scientific 82° Series 30mm - 2'' [ES-EPWP8230-01]

$369.99 USD

Explore Scientific: Scientific eyepiece, focal length 30 mm, apparent field of 82 °, 50.8 mm (2").

Over the past few years, the Explore Scientific eyepieces have forged a solid reputation in terms of quality and competitive rates. Looking in an eyepiece Explore is a pleasant and easy experience, the picture is beautiful from the first glance.

This eyepiece offers an apparent wide field of 82 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

Each eyepiece of the series 82 ° is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings.

All 82 ° series eyepieces are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 82 ° delivers sharp, contrasting images. The apparent field of 82 ° is wide enough to be able to keep in sight a celestial object observed in a non-motorized instrument.

The focal length of the Explore Scientific 82 ° 30mm eyepiece predestines it to low magnifications (33x on an optical tube of 1 meter of focal length), making it very suitable for the observation in detail of large nebulae or galaxies, clusters Galaxies or comets, while benefiting from a very wide field of vision.

The 30 mm eye relief is 22 mm: this means that the image remains comfortable up to a distance of 22 mm above the lens, to fully enjoy the field of view offered by the eyepiece. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

The inside of the sink is threaded in M48 x 0.75 mm to accommodate filters with a diameter of 50.8 mm (2 "), Such as interference filters of type OIII, UHC, H-Beta..., Which serve to enhance contrast on many nebulae.

Out of Stock

Explore Scientific 4.5mm 82° Series LER Waterproof Eyepiece [ES-EPWP8245LE-01]

$249.99 USD

Explore Scientific: With its particularly long eye relief of 15.9mm, the 4.5mm LER ocular from Explore Scientific’s 82° Series of Argon-Purged Waterproof Eyepieces puts the focus on a comfortable viewing experience for all observers. A long eye relief is especially important for eyeglass wearers because it allows them to enjoy the full field of view.

The 4.5mm focal length is perfect for observing objects that would benefit from high magnifications such as the Moon, the planets and binary stars. When atmospheric conditions are almost perfect, this eyepiece can reveal planetary details that will are truly stunning. The 4.5mm size is also great for detailed examinations of the structures within deep sky objects like nebulae.

This multi-element eyepiece achieves superior light transmission with edge-blackened optics made of low-dispersion glass with a high refractive index. Each lens also is fully multi-coated with durable enhanced multi-layer deposition (EMD) coatings. The combination of these factors maximizes the potential of your telescope to capture the celestial wonders you seek with sharp contrast, high resolution and crisp definition.

Like the others eyepieces in Explore Scientific 82° Series, this ocular has an ultra-wide 82° apparent field of view that immerses observers in the cosmos and naturally promotes relaxation at the eyepiece. When you relax your eyes and take in the scene presented before you, it is much easier to observe for longer periods of time, and details begin to materialize that were not revealed at first glance. The broad field of view promotes the use of averted vision, which involves looking slightly to the side of a target object rather than directly at it. This is especially helpful when observing faint objects, because using averted vision puts the image on a part of your eye that is more sensitive to light, allowing you to see fainter images.

All Explore Scientific Waterproof Eyepieces are gas-purged and O-ring sealed to create a waterproof environment that is impervious to internal fogging and prevents contaminants like fungus and dust from entering the ocular housing. This design makes cleaning the eyepiece a breeze.

Out of Stock

Explore Scientific 82° Series 4.7mm - 1.25'' [ES-EPWP8247-01]

$199.99 USD

1 in stock

Back Order / Waiting List

Explore Scientific: Scientific eyepiece, focal length 4.7 mm, apparent field 82 °, barrel size 31.75 mm (1.25 ").

Over the past few years, the Explore Scientific eyepieces have forged a solid reputation in terms of quality and competitive rates. Looking in an eyepiece Explore is a pleasant and easy experience, the picture is beautiful from the first glance.

This eyepiece offers an apparent wide field of 82 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

Each eyepiece of the series 82 ° is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings.

All 82 ° series eyepieces are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 82 ° delivers sharp, contrasting images. The apparent field of 82 ° is wide enough to be able to keep in sight a celestial object observed in a non-motorized instrument.

The focal length of the Explore Scientific 82 ° 4.7 mm eyepiece is only suitable for observing small and bright objects (planets, planetary nebulae, globular clusters) since it delivers very high magnifications (212x on an optical tube of 1 Meter of focal length).

The eye relief of the 4.7 mm is 13.6 mm: this means that the image remains comfortable up to a distance of 13.6 mm above the lens, to fully enjoy the field offered by the lens, ocular. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

Finally, it fits into the 1.25 "(31.75 mm) eyepiece holders. The inside of the sink is threaded in M28.5 x 0.6 mm to accommodate filters with 31.75 mm (1.25" ), Such as interference filters of type OIII, UHC, H-Beta, etc., which serve to enhance the contrast on many nebulae.

Add to cart

Explore Scientific 6.5mm 82° Series LER Waterproof Eyepiece [ES-EPWP8265LE-01]

$249.99 USD

Explore Scientific: With its impressively long eye relief of 16.8mm, the 6.5mm LER ocular from Explore Scientific’s 82° Series of Argon-Purged Waterproof Eyepieces puts the focus on a comfortable viewing experience for all observers. For eyeglass wearers, a long relief is a must because it allows them to enjoy the full field of view.

Although it is not the shortest focal length in the 82° Series, this eyepiece’s 6.5mm focal length will produce high magnifications that are great for observing objects like the Moon, the planets and binary stars. When atmospheric conditions are almost perfect, this eyepiece can reveal amazing planetary details and allow for thorough explorations of the structures within deep sky objects like nebulae.

This multi-element eyepiece achieves superior light transmission with edge-blackened optics made of low-dispersion glass with a high refractive index. Each lens also is fully multi-coated with durable enhanced multi-layer deposition (EMD) coatings. The combination of these factors maximizes the potential of your telescope to capture the celestial wonders you seek with sharp contrast, high resolution and crisp definition.

Like the others eyepieces in Explore Scientific 82° Series, this ocular has an ultra-wide 82° apparent field of view that immerses observers in the cosmos and naturally promotes relaxation at the eyepiece. When you relax your eyes and take in the scene presented before you, it is much easier to observe for longer periods of time, and details begin to materialize that were not revealed at first glance. The broad field of view promotes the use of averted vision, which involves looking slightly to the side of a target object rather than directly at it. This is especially helpful when observing faint objects, because using averted vision puts the image on a part of your eye that is more sensitive to light, allowing you to see fainter images.

Out of Stock

Explore Scientific 82° Series 6.7mm- 1.25'' [ES-EPWP8267-01]

$199.99 USD

Explore Scientific: Scientific eyepiece, focal length of 6.7 mm, apparent field of 82 °, barrel size 31.75 mm (1.25").

In recent years, Explore Scientific eyepieces have forged a solid reputation in terms of quality , And competitive rates. Watching in an eyepiece Explore is a pleasant and easy experience, the picture is beautiful from the first glance.

This eyepiece offers an apparent wide field of 82 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

Each eyepiece of the series 82 ° is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings.

All 82 ° series eyepieces are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 82 ° delivers sharp, contrasting images. The apparent field of 82 ° is wide enough to be able to keep in sight a celestial object observed in a non-motorized instrument.

The focal length of the Explore Scientific 82 ° eyepiece of 6.7 mm predestines it at high magnifications (149x on an optical tube of 1 meter of focal length). It is therefore suited to planetary observations (Moon, planets, Sun), double or multiple stars, as well as the observation of small planetary nebulae and the search for details in nebulae and galaxies.

The eye relief of the 6.7 mm is 15.7 mm: this means that the image remains comfortable up to a distance of 15.7 mm above the lens, to take full advantage of the field offered by the lens. ocular. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

Finally, it fits into the 1.25 "(31.75 mm) eyepiece holders. The inside of the sink is threaded in M28.5 x 0.6 mm to accommodate filters with 31.75 mm (1.25" ), Such as interference filters of type OIII, UHC, H-Beta, etc., which serve to enhance the contrast on many nebulae.

Out of Stock

Explore Scientific 8.5mm 82° Series LER Waterproof Eyepiece [ES-EPWP8285LE-01]

$249.99 USD

Explore Scientific: With its long eye relief of 15mm, the 8.5mm LER ocular from Explore Scientific’s 82° Series of Argon-Purged Waterproof Eyepieces puts the focus on a comfortable viewing experience for all observers. For eyeglass wearers, a long relief is a must because it allows them to enjoy the full field of view.

This eyepiece’s 8.5mm focal length can produce high magnifications that are great for observing objects like the Moon, the planets and binary stars. When atmospheric conditions are almost perfect, this eyepiece can enhance planetary details and allow for thorough explorations of the structures within deep sky objects like nebulae.

This multi-element eyepiece achieves superior light transmission with edge-blackened optics made of low-dispersion glass with a high refractive index. Each lens also is fully multi-coated with durable enhanced multi-layer deposition (EMD) coatings. The combination of these factors maximizes the potential of your telescope to capture the celestial wonders you seek with sharp contrast, high resolution and crisp definition.

Like the others eyepieces in Explore Scientific 82° Series, this ocular has an ultra-wide 82° apparent field of view that immerses observers in the cosmos and naturally promotes relaxation at the eyepiece. When you relax your eyes and take in the scene presented before you, it is much easier to observe for longer periods of time, and details begin to materialize that were not revealed at first glance. The broad field of view promotes the use of averted vision, which involves looking slightly to the side of a target object rather than directly at it. This is especially helpful when observing faint objects, because using averted vision puts the image on a part of your eye that is more sensitive to light, allowing you to see fainter images.

All Explore Scientific Waterproof Eyepieces are gas-purged and O-ring sealed to create a waterproof environment that is impervious to internal fogging and prevents contaminants like fungus and dust from entering the ocular housing. This design makes cleaning the eyepiece a breeze.

Out of Stock

Explore Scientific 82° Series 8.8mm - 1.25'' [ES-EPWP8288-01]

$199.99 USD

Explore Scientific: Scientific eyepiece, 8.8 mm focal length, 82 ° visible field, 31.75 mm (1.25").
Over the past few years, the Explore Scientific eyepieces have forged a solid reputation in terms of quality and competitive rates. Looking in an eyepiece Explore is a pleasant and easy experience, the picture is beautiful from the first glance.

This eyepiece offers an apparent wide field of 82 °, high level optical quality, surprising light transmission and correctly corrected field planarity ...

Each eyepiece of the series 82 ° is sealed and filled with an inert gas, argon. This process prevents the formation of condensation inside the eyepiece and prevents the entry of dust to maximize the lifetime of the internal coatings.

All 82 ° series eyepieces are fully multilayered and the edges are blackened to produce maximum contrast.

The Explore Scientific 82 ° delivers sharp, contrasting images. The apparent field of 82 ° is wide enough to be able to keep in sight a celestial object observed in a non-motorized instrument.

The focal length of the Scientific 82 ° eyepiece of 8.8 mm predestines it rather at fairly high magnifications (113x on an optical tube of 1 meter of focal length). It is therefore suited to planetary observations (Moon, planets, Sun), double or multiple stars, as well as the observation of small planetary nebulae and the search for details in nebulae and galaxies.

The eye relief of the 8.8 mm is 15.6 mm: this means that the image remains comfortable up to 15.6 mm above the lens, to take full advantage of the field offered by the lens, ocular. This is an important detail for the viewer wearing eyeglasses, which will keep them on the nose.

Finally, it fits into the 1.25 "(31.75 mm) eyepiece holders. The inside of the sink is threaded in M28.5 x 0.6 mm to accommodate filters with 31.75 mm (1.25"), Such as interference filters of type OIII, UHC, H-Beta, etc., which serve to enhance the contrast on many nebulae.

Out of Stock

Explore Scientific 92° Series 12mm - 2'' [ES-EPWP9212-01]

$549.99 USD

Explore Scientific: Explore Ultra-Wide Eyepieces – Comfort, Quality, Value. The Explore Scientific 92° Series™ eyepieces are hyper-wide class oculars that can transform your visual astronomy experience. You may be startled at the amazingly wide expanse of inky black sky you behold the first time you bring your eye to a 92° Series eyepiece, and after awhile, you may even forget that you have an eyepiece between you and the universe! With an apparent field of view that is close to the maximum for hyper-wide eyepiece design, objects are not only easier to locate, but for non-driven telescopes the object will stay in the field of view for a very long time before any adjustments need to be made.

Out of Stock

Explore Scientific 92° Series 17mm [ES-EPWP9217-01]

$549.99 USD

Explore Scientific: Explore Ultra-Wide Eyepieces – Comfort, Quality, Value. The Explore Scientific 92° Series™ eyepieces are hyper-wide class oculars that can transform your visual astronomy experience. You may be startled at the amazingly wide expanse of inky black sky you behold the first time you bring your eye to a 92° Series eyepiece, and after awhile, you may even forget that you have an eyepiece between you and the universe! With an apparent field of view that is close to the maximum for hyper-wide eyepiece design, objects are not only easier to locate, but for non-driven telescopes the object will stay in the field of view for a very long time before any adjustments need to be made.

Out of Stock

Explore Scientific Extension Tube for Select Rack & Pinion Focusers (1") [ES-ESRPEXT1]

$24.99 USD

1 in stock

Back Order / Waiting List

Explore Scientific: Observing the night sky is better than ever using the Explore Scientific Rack and Pinion Focuser Extention Tube. Perfect for telescopes of all sorts, the Explore Scientific Rack and Pinion Focuser Extention Tube will maximize your observing encounter with every use, ensuring that you'll never overlook a single thing in the night sky. Created to last for years and years, these Telescope Accessories from the authorities at Explore Scientific are made from some of the most strong resources to ensure that your telescope functions its best rain or shine. Explore Scientific has been a innovator in the telescope sector for numerous years, and the Explore Scientific Rack and Pinion Focuser Extention Tube shows the years of specialized research and flawless engineering that you have come to rely on. Here at OpticsPlanet, we are thrilled to supply our customers with the best option to match their needs, and the Explore Scientific Rack and Pinion Focuser Extention Tube is just one of the telescope accessories that we are positive you'll enjoy. Thoroughly savor the beauty of the night sky when you furnish your favorite telescope with the Explore Scientific Rack and Pinion Focuser Extention Tube.

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Explore Scientific Extension Tube for Select Rack & Pinion Focusers (2") [ES-ESRPEXT2]

$29.99 USD

3 in stock

Back Order / Waiting List

Explore Scientific: Observing the night sky is better than ever using the Explore Scientific Rack and Pinion Focuser Extention Tube. Perfect for telescopes of all sorts, the Explore Scientific Rack and Pinion Focuser Extention Tube will maximize your observing encounter with every use, ensuring that you'll never overlook a single thing in the night sky. Created to last for years and years, these Telescope Accessories from the authorities at Explore Scientific are made from some of the most strong resources to ensure that your telescope functions its best rain or shine. Explore Scientific has been a innovator in the telescope sector for numerous years, and the Explore Scientific Rack and Pinion Focuser Extention Tube shows the years of specialized research and flawless engineering that you have come to rely on. Here at OpticsPlanet, we are thrilled to supply our customers with the best option to match their needs, and the Explore Scientific Rack and Pinion Focuser Extention Tube is just one of the telescope accessories that we are positive you'll enjoy. Thoroughly savor the beauty of the night sky when you furnish your favorite telescope with the Explore Scientific Rack and Pinion Focuser Extention Tube.

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Explore Scientific EXOS-2GT Universal AC Power Supply [ES-EXOS2GTAC]

$89.99 USD

1 in stock

Back Order / Waiting List

Explore Scientific: The Explore Scientific EXOS-2GT Equatorial Computerized Mount comes with a battery pack that holds eight D-cell batteries. While this is a nice back-up, we recommend you normally run the mount from either an external DC power source (a DC cable that would connect to either your car battery or your choice of portable 12V battery is available separately under the product number EXOS2GTDC), or, if you have a source of AC power nearby, you can tap into it with this Universal AC Power Supply.

230/12V
2.5A

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EXOS-2GT DC Car 12V/7 .5m Adapter Cable [ES-EXOS2GTDC]

$29.99 USD

3 in stock

Back Order / Waiting List

Explore Scientific: The Explore Scientific EXOS-2GT Equatorial Computerized Mount comes with a battery pack that holds eight D-cell batteries. While this is a nice back-up, we recommend you normally run the mount from a DC power source such as your car battery via its cigarette lighter, or a portable 12V DC Power Supply of your choosing (sold separately). This DC Adapter Cable will connect the Explore EXOS-2GT mount to either of these DC power sources.

p>Alternatively, if you have a source of AC power nearby, you can tap into it with the EXOS-2GT Universal AC Power Supply (EXOS2GTAC), sold separately. Many amateur astronomers like to own both types of power adapters so they can use the one that makes the most sense when out observing.

This product includes the DC Adapter Cable only
12V/7.5m

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$Explore Scientific 80mm f/6 FCD100 Triplet Refractor w/2.5" HEX Focuser [ES-FCD100-0806-01]$

Explore Scientific 80mm f/6 FCD100 Triplet Refractor w/2.5" HEX Focuser [ES-FCD100-0806-01]

$1,199.99 USD

Explore Scientific: The Explore Scientific 80 mm f/6 ED Air-Spaced Triplet Refractor Telescope has Hoya FCD100 optics for beautifully sharp, high contrast images. The optical tube assembly is painted classic white, and includes an integrated dew shield on one end and a 2.5" HEX, or hexagonal, rack and pinion focuser. The telescope attaches easily to Vixen-style mounts with the built-in Vixen dovetail foot. Included accessories include a finder scope base, which comes already attached to the tube, and an Explore Scientific 2" Diagonal, with 99% reflectivity to compliment the optics of this portable, classic refractor.

Explore ED80 FCD100 Refractor Features

Aperture: 80 mm
Focal Length: 480 mm
Focal Ratio: f/6
Optics: Hoya FCD100
Optical Style: Air-Spaced Triplet
Dew Shield: Integrated
Focuser: 2.5" Hexagonal Rack & Pinion
Dovetail: Integrated, Vixen-style
Diagonal: 2" 99% Reflectivity
Case: Sold Separately
Finder: Sold Separately
Weight: 7 pounds

Out of Stock

$Explore Scientific 102 mm f/7 FCD100 Triplet Refractor w/2.5" HEX Focuser [ES-FCD100-10207-01]$

Explore Scientific 102 mm f/7 FCD100 Triplet Refractor w/2.5" HEX Focuser [ES-FCD100-10207-01]

$1,899.99 USD

Explore Scientific: The Explore Scientific 102 mm f/7 ED Air-Spaced Triplet Refractor Telescope has Hoya FCD100 optics for beautifully sharp, high contrast images. The optical tube assembly is painted classic white, and includes an integrated dew shield on one end and a 2.5" HEX, or hexagonal, rack and pinion focuser. The telescope includes a cradle ring with built-in handle and a Vixen-style dovetail plate. Additional accessories include a finder scope base, which comes already attached to the tube, and an Explore Scientific 2" Diagonal, with 99% reflectivity to compliment the optics of this portable, classic refractor.

Explore ED102 FCD100 Refractor Features

Aperture: 102 mm
Focal Length: 714 mm
Focal Ratio: f/7
Optics: Hoya FCD100
Optical Style: Air-Spaced Triplet
Dew Shield: Integrated
Focuser: 2.5" Hexagonal Rack & Pinion
Mounting: Cradle Ring with Vixen Dovetail
Diagonal: 2" 99% Reflectivity
Case: Sold Separately
Finder: Sold Separately
Weight: 12 pounds

Out of Stock

$Explore Scientific 102 mm FCD100 f/7 Carbon Fiber Triplet Refractor w/2.5" HEX Focuser [ES-FCD100-10207-CF]$

Explore Scientific 102 mm FCD100 f/7 Carbon Fiber Triplet Refractor w/2.5" HEX Focuser [ES-FCD100-10207-CF]

$2,199.99 USD

Explore Scientific: With the new lightweight Explore Scientific 102 mm FCD100 Carbon Fiber Air-Spaced Triplet Refractor, celestial phenomena such as the isolated beauty of the lunar topography, Saturn's smooth ring composition, and the brightest deep-sky gems in the Messier catalog will reveal themselves to you.

This refractor includes all of the original EDT-10207-CF's most popular features but with the added bonus of bona fide premium HOYA FCD100 ED glass, which has characteristics akin to Ohara FPL-53 glass. Depending on technological ingenuity, Explore Scientific has successfully initiated the mass production of high-performance optical glass at the core of the FCD line. Explore is able to achieve unparalleled advanced chromatic aberration correction due to the combination of this high volume production and high refractive index optical glass. HOYA FCD100 is widely understood to be one of the best ED glass types available.

Featuring an authentic diffraction-limited design and compact size supporting impromptu observing sessions, this supreme quality telescope is the perfect grab-and-go instrument for night sky exploration. With an air-spaced triplet optical configuration that all but eliminates chromatic distortions, the 102 mm FCD100 produces radiant high contrast images by incorporating genuine HOYA FCD100 ED (extra-low dispersion) glass with Explore's EMD enhanced multi-layer coatings on all optical surfaces.

Furthermore, this incredible telescope also comes with a new extremely rigid 2.5" Hexagonal focuser that offers up to 10 lbs. of gear load support. The Explore ED102 Carbon Fiber Triplet Refractor with 714 mm focal length package also includes an integrated dew shield, cradle ring with handle, Vixen style dovetail plate, Explore finder scope base, and 2" diagonal with 99% reflectivity. Total weight is 12 lbs. Does NOT come with case or finderscope.

Explore Scientific 102 mm FCD100 CF Triplet Refractor Specifications

Description: ED102 FCD100 series Carbon Fiber Air-Spaced Triplet Refractor
Focal Length: 714 mm
Focal Ratio: f/7
Dew Shield: Integrated
Focuser: 2.5" HEX Rack & Pinion
Mounting: Cradle ring with Vixen dovetail
Diagonal: 2" with 99% reflectivity
Case: Sold separately
Finder: Sold separately
Weight: 12 lbs.

Out of Stock

$Explore Scientific 127 mm f/7.5 FCD100 Triplet Refractor w/2.5" HEX Focuser [ES-FCD100-127075-01]$

Explore Scientific 127 mm f/7.5 FCD100 Triplet Refractor w/2.5" HEX Focuser [ES-FCD100-127075-01]

$2,399.99 USD

Explore Scientific: The Explore Scientific 127 mm f/7.5 ED Air-Spaced Triplet Refractor Telescope has Hoya FCD100 optics for beautifully sharp, high contrast images. The optical tube assembly is painted classic white and includes an integrated dew shield on one end and a 2.5" HEX, or hexagonal, rack and pinion focuser on the other. The telescope includes a cradle ring with built-in handle and a Vixen-style dovetail plate that attaches to mounts with a Vixen-style saddle. Additional accessories include a finder scope base, which comes already attached to the tube, and an Explore Scientific 2" Diagonal, with 99% reflectivity to compliment the optics of this portable, classic refractor.

Explore ED127 FCD100 Refractor Features

Aperture: 127 mm
Focal Length: 952 mm
Focal Ratio: f/7.5
Optics: Hoya FCD100
Optical Style: Air-Spaced Triplet
Dew Shield: Integrated
Focuser: 2.5" Hexagonal Rack & Pinion
Mounting: Cradle Ring with Vixen Dovetail
Diagonal: 2" 99% Reflectivity
Case: Sold Separately
Finder: Sold Separately
Weight: 18 pounds

Out of Stock

$Explore Scientific 127 mm f/7.5 FCD100 Triplet Carbon Fiber Refractor w/2.5" HEX Focuser [ES-FCD100-127075-CF]$

Explore Scientific 127 mm f/7.5 FCD100 Triplet Carbon Fiber Refractor w/2.5" HEX Focuser [ES-FCD100-127075-CF]

$2,999.99 USD

Explore Scientific: Explore Scientific 127 mm f/7.5 ED Air-Spaced Triplet Refractor Telescope has Hoya FCD100 optics for beautifully sharp, high contrast images. The optical tube assembly is made of carbon fiber and includes an integrated dew shield on one end and a 2.5" HEX, or hexagonal, rack and pinion focuser on the other. The telescope includes a cradle ring with built-in handle and a Vixen-style dovetail plate that attaches to mounts with a Vixen/CG-5 style saddle. Additional accessories include a finder scope base, which comes already attached to the tube, and an Explore Scientific 2" Diagonal, with 99% reflectivity to compliment the optics of this portable, classic refractor.

Explore ED127 FCD100 Refractor Features

Aperture: 127 mm
Focal Length: 952 mm
Focal Ratio: f/7.5
Optics: Hoya FCD100
Optical Style: Air-Spaced Triplet
Optical Tube: Carbon Fiber
Dew Shield: Integrated
Focuser: 2.5" Hexagonal Rack & Pinion
Mounting: Cradle Ring with Vixen Dovetail
Diagonal: 2" 99% Reflectivity
Case: Sold Separately
Finder: Sold Separately
Weight: 18 pounds

Out of Stock

Explore Scientific 2x 2" Focal Extender [ES-FE02-020]

$269.99 USD

Explore Scientific: 2x Explore Scientific Focal Extender; 2-inch Barrel; 4 Elements.

This 2'' Focal Extender from Explore Scientific offers 2X magnification, and comes with a 1.25'' compression adapter. Explore Scientific Focal Extenders are great for either visual or imaging use. Insert them before the diagonal or after the diagonal and get the same magnification regardless. For imaging, you can introduce the focal extender anywhere between the telescope and the camera, allowing you to add an accessory like a filter wheel without worrying about changes in magnification.

All Explore Scientific Focal Extenders are fully multi-coated and each element has blackened edges for increased contrast and prevention of internal reflections.

A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that you already own. In other words, 3 eyepieces offer 6 magnification choices with the addition of a focal extender. Secondly, most of the time, lower magnification eyepieces have better eye relief than higher power models. When using a focal extender to increase your magnification, you get to enjoy the generous eye relief of the lower power eyepiece, and that's quite a bonus, especially for eyeglass wearers or for those with fast telescopes who can really push high magnification eyepieces. Remember, we make focal extenders in 2X, 3X and 5x models, so there is something for every style of telescope.

Out of Stock

Explore Scientific 2x 1.25" Focal Extender [ES-FE02-125]

$159.99 USD

Explore Scientific: 2x Explore Scientific Focal Extender; 1.25-inch Barrel; 4 Elements.

This 1.25'' Focal Extender from Explore Scientific offers 2X magnification. Explore Scientific Focal Extenders are great for either visual or imaging use. Insert them before the diagonal or after the diagonal and get the same magnification regardless. For imaging, you can introduce the focal extender anywhere between the telescope and the camera, allowing you to add an accessory like a filter wheel without worrying about changes in magnification.

All Explore Scientific Focal Extenders are fully multi-coated and each element has blackened edges for increased contrast and prevention of internal reflections.

A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that you already own. In other words, 3 eyepieces offer 6 magnification choices with the addition of a focal extender. Secondly, most of the time, lower magnification eyepieces have better eye relief than higher power models. When using a focal extender to increase your magnification, you get to enjoy the generous eye relief of the lower power eyepiece, and that's quite a bonus, especially for eyeglass wearers or for those with fast telescopes who can really push high magnification eyepieces. Remember, we make focal extenders in 2X, 3X and 5x models, so there is something for every style of telescope.

Out of Stock

Explore Scientific 3x 2" Focal Extender [ES-FE03-020]

$289.99 USD

Explore Scientific: 3x Explore Scientific Focal Extender; 2-inch Barrel; 4 Elements

This 2'' Focal Extender from Explore Scientific offers 3X magnification, and comes with a 2'' compression adapter. Explore Scientific Focal Extenders are great for either visual or imaging use. Insert them before the diagonal or after the diagonal and get the same magnification regardless. For imaging, you can introduce the focal extender anywhere between the telescope and the camera, allowing you to add an accessory like a filter wheel without worrying about changes in magnification.

All Explore Scientific Focal Extenders are fully multi-coated and each element has blackened edges for increased contrast and prevention of internal reflections.

Out of Stock

Explore Scientific 3x 1.25" Focal Extender [ES-FE03-125]

$169.99 USD

Explore Scientific: 3x Explore Scientific Focal Extender; 1.25-inch Barrel; 4 Elements.

This 1.25'' Focal Extender from Explore Scientific offers 3X magnification. Explore Scientific Focal Extenders are great for either visual or imaging use. Insert them before the diagonal or after the diagonal and get the same magnification regardless. For imaging, you can introduce the focal extender anywhere between the telescope and the camera, allowing you to add an accessory like a filter wheel without worrying about changes in magnification.

All Explore Scientific Focal Extenders are fully multi-coated and each element has blackened edges for increased contrast and prevention of internal reflections.

A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that you already own. In other words, 3 eyepieces offer 6 magnification choices with the addition of a focal extender. Secondly, most of the time, lower magnification eyepieces have better eye relief than higher power models. When using a focal extender to increase your magnification, you get to enjoy the generous eye relief of the lower power eyepiece, and that's quite a bonus, especially for eyeglass wearers or for those with fast telescopes who can really push high magnification eyepieces. Remember, we make focal extenders in 2X, 3X and 5x models, so there is something for every style of telescope.

Out of Stock

Explore Scientific 5x 1.25" Focal Extender [ES-FE05-125]

$179.99 USD

Explore Scientific: 5x Explore Scientific Focal Extender; 1.25-inch Barrel; 4 Elements.

This 1.25'' Focal Extender from Explore Scientific offers 5X magnification. Explore Scientific Focal Extenders are great for either visual or imaging use. Insert them before the diagonal or after the diagonal and get the same magnification regardless. For imaging, you can introduce the focal extender anywhere between the telescope and the camera, allowing you to add an accessory like a filter wheel without worrying about changes in magnification.

All Explore Scientific Focal Extenders are fully multi-coated and each element has blackened edges for increased contrast and prevention of internal reflections.

A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that you already own. In other words, 3 eyepieces offer 6 magnification choices with the addition of a focal extender. Secondly, most of the time, lower magnification eyepieces have better eye relief than higher power models. When using a focal extender to increase your magnification, you get to enjoy the generous eye relief of the lower power eyepiece, and that's quite a bonus, especially for eyeglass wearers or for those with fast telescopes who can really push high magnification eyepieces. Remember, we make focal extenders in 2X, 3X and 5x models, so there is something for every style of telescope.

Out of Stock

Explore Scientific 2" Field Flattener for ED APO [ES-FFEDAPO-00]

$179.99 USD

Explore Scientific: A curved focal plane is an inherent feature in most telescope designs and is nothing to note for general stargazers. But, for astrophotographers, the consequences of that same curved plane can ruin hours of patient imaging. Designed for refracting telescopes, Explore Scientific’s Field Flattener can tackle the edge-of-field aberrations caused by this necessary curvature to ensure your long night at the eyepiece will not be in vain. This accessory offers fully multi-coated optics and slides securely into the 2” eyepiece holder.

Out of Stock

Explore Scientific 2" Field Flattener for ED APO 55mm BF [ES-FFEDAPO-01]

$199.99 USD

Explore Scientific: A curved focal plane is an inherent feature in most telescope designs and is nothing to note for general stargazers. But, for astrophotographers, the consequences of that same curved plane can ruin hours of patient imaging. Designed for refracting telescopes, Explore Scientific’s Field Flattener can tackle the edge-of-field aberrations caused by this necessary curvature to ensure your long night at the eyepiece will not be in vain. This accessory offers fully multi-coated optics and slides securely into the 2” eyepiece holder.

Out of Stock

Explore Scientific 50mm 3" Flattener and .7X Focal Reducer [ES-FFFR507X-00]

$449.99 USD

Explore Scientific: Explore Scientific’s 3” Field Flattener .7x Focal Reducer is a multi-faceted accessory designed to enhance your astrophotography experiences. As a field flattener, this piece addresses the edge-of-field aberrations caused by curved focal planes to ensure your night at the eyepiece will result in crisp, true images.

As a focal reducer, this device will reduce your f-ratio by .7, which results in a wider field of view, brighter images and less exposure time. Recommended for our 127mm and 152mm refracting telescopes, this field flattener/focal reducer boasts fully multi-coated optics and comes with 2 adapters to accommodate different focuser sizes.

While technically this was designed for the F/8 system, through user experiences and our subsequent testing we have concluded that our 3" Flattener / Reducer performs very well with our F/7 refractors.

Out of Stock

Explore Scientific T Shaped Finder Scope Base [ES-FNDRBASE-ESSEN]

$44.99 USD

Explore Scientific: Explore Scientific ''T'' Shaped finder scope base for Essential Series Telescopes with screws.

The Explore Scientific T Shaped Finder Scope Base w/ Screws is specifically designed to allow you to secure a finder scope to your telescope. The Explore Scientific T-Shaped Essential Series Finder Scope Base w/ Mounting Screws is sturdy and comes with reliable mounting screws for easy installation.

Out of Stock

Explore Scientific Black Finder Base [ES-FNDRBASEBLK]

$44.99 USD

Explore Scientific: Explore Scientific finder scope base with screws. Add an Explore Scientific Finder scope to your telescope with the help of this sturdy base. The Finder scope Base is built to accept the dovetail bracket for any of the Explore Scientific Finders. Each base comes with knurled knobs to lock the finder into place.

Out of Stock

Explore Scientific Finder Scope Illuminator ONLY [ES-FNDRILLUM]

$39.99 USD

Explore Scientific: Finder Scope Illuminator Only. This is the illuminator that comes standard with Explore Scientific's illuminated finder scopes. The wireless illuminator has adjustable brightness settings, allowing you to easily brighten or dim your finder's reticle to match the magnitude of the stars you are dealing with. The on-off switch at the end of the illuminator serves as the brightness control. Designed to fit Explore Scientific’s 50mm reticle finder scopes, this spare LED illuminator offers deep red illumination with variable brightness.

Out of Stock

Explore Scientific Finder Scope Illuminator-II with additional battery power for longer life battery life. [ES-FNDRILLUM-02]

$49.99 USD

Explore Scientific: Ever frustrated by the standard illuminator? Is the battery always dead when you turn it on? The Illuminator II now offers exceptional batter life for our VFEI0850–01 and VFEI0850-RA finder scopes OR most any other illuminated finder with a standard illuminator.

The advantage of the Illuminator II is the power provided by 2 alkaline AAA batteries which will last AT LEAST 100X longer than the traditional illuminator. The Illuminator II also offers variable control from ultra-dim to very intense for proper illumination of the markings in the finder scope.

To install your Illuminator II into the finder, simply unscrew the original illuminator and replace with the Illuminator II. It should be fairly quick and simple.

Out of Stock

Explore Scientific Right Angle Finder Scope Rings [ES-FNDRRGSRA]

$64.99 USD

Explore Scientific: Explore Scientific finderscope rings are all made for 50mm finders. Choose from a classic low profile bracket (about an inch tall), one that is a tad higher (1.5") or a high profile bracket that stands 4" above the finderscope base.

Regardless of the height you choose, these brackets have two rings to hold your finder firmly yet gently, and each ring has three adjustment points. Heavy-duty plastic thumbscrews are included, and have large heads for easy adjustment even if you're wearing gloves.

Because your telescope may not fit in its case with the finderscope attached, you will appreciate the quick release feature on Explore Scientific finder brackets. The bracket itself dovetails into the finder base (sold separately), and locks down with thumbscrews. It is a simple thing to remove or install your finder and bracket on your telescope in this manner.

To install your finder into the bracket, simply back the thumbscrews out so that you've opened up the full inside diameter of the rings. Slide the finder into place, and adjust the screws inward until your finderscope is securely held in position. You should have very rough alignment at this point, which means when you look through the finder and center an object, and then look through a low power eyepiece inserted in your telescope diagonal or focuser, that object will most likely be in the field of view, but not at or near the center (unless you are very lucky!). Doing that first fine alignment...the task of matching what's in your finder to what's in your eyepiece...can be tedious and frustrating sometimes, but once you complete the job, it should never be required again. Sure, you will have to tweak the adjustment every time you re-install the finder/bracket combo onto your telescope, but it should be fairly quick and simple.

Here is a helpful hint when it comes time to do that first alignment. Set your telescope up in the daytime, and make sure you bring out a variety of eyepieces with you. Find an easy target that is relatively far away, like a streetlight or the top of a telephone pole. Starting with the lowest power eyepiece, adjust your finder bracket until you have "matching" views. The more accurate you are, the easier it will be when you trade out your low power eyepiece for something a little stronger.

Now do just that; put in a medium-powered eyepiece and do the same thing, being as accurate as you can. Finally, it's time for the high-powered eyepiece. Once you have finished this alignment process, you can either wait for the sun to go down to finish tweaking your finder, or you can put your telescope away and wait until the next time. Either way, once it is dark, find something bright, like the Moon or Venus or Jupiter, and center it in your finder. Now install the medium-powered eyepiece and check your view. If the object is not centered, make your adjustments, then insert the high-powered eyepiece and check again. Once you have made the necessary tweaks, you are good to go. From now on, unless you remove the finder from the bracket or something else happens to severely change alignment, you should only have to make small tweaks before every observing session. I know it sounds like a lot of trouble to go through for such a "small" thing, but trust me, I have seen more beginners make the mistake of trying to do finder alignments in the dark on small, dim objects, and it is not a pretty sight! All they want to do is observe, and they feel like they are wasting precious time doing silly things. A well-aligned finder makes astronomy SO much easier...give yourself a break and do the hard part during the day, and you won't be sorry!

Out of Stock

Explore Scientific Standard Height Finder Scope Rings [ES-FNDRRGSSTD]

$54.99 USD

Explore Scientific: Explore Scientific finderscope rings are all made for 50mm finders. Choose from a classic low profile bracket (about an inch tall), one that is a tad higher (1.5") or a high profile bracket that stands 4" above the finderscope base.

Regardless of the height you choose, these brackets have two rings to hold your finder firmly yet gently, and each ring has three adjustment points. Heavy-duty plastic thumbscrews are included, and have large heads for easy adjustment even if you're wearing gloves.

Because your telescope may not fit in its case with the finderscope attached, you will appreciate the quick release feature on Explore Scientific finder brackets. The bracket itself dovetails into the finder base (sold separately), and locks down with thumbscrews. It is a simple thing to remove or install your finder and bracket on your telescope in this manner.

Out of Stock

Explore Scientific Tall Finder Scope Rings [ES-FNDRRGSTALL]

$74.99 USD

Explore Scientific: Explore Scientific finderscope rings are all made for 50mm finders. Choose from a classic low profile bracket (about an inch tall), one that is a tad higher (1.5") or a high profile bracket that stands 4" above the finderscope base.

Regardless of the height you choose, these brackets have two rings to hold your finder firmly yet gently, and each ring has three adjustment points. Heavy-duty plastic thumbscrews are included, and have large heads for easy adjustment even if you're wearing gloves.

Because your telescope may not fit in its case with the finderscope attached, you will appreciate the quick release feature on Explore Scientific finder brackets. The bracket itself dovetails into the finder base (sold separately), and locks down with thumbscrews. It is a simple thing to remove or install your finder and bracket on your telescope in this manner.

To install your finder into the bracket, simply back the thumbscrews out so that you've opened up the full inside diameter of the rings. Slide the finder into place, and adjust the screws inward until your finderscope is securely held in position. You should have very rough alignment at this point, which means when you look through the finder and center an object, and then look through a low power eyepiece inserted in your telescope diagonal or focuser, that object will most likely be in the field of view, but not at or near the center (unless you are very lucky!). Doing that first fine alignment...the task of matching what's in your finder to what's in your eyepiece...can be tedious and frustrating sometimes, but once you complete the job, it should never be required again. Sure, you will have to tweak the adjustment every time you re-install the finder/bracket combo onto your telescope, but it should be fairly quick and simple.

Here is a helpful hint when it comes time to do that first alignment. Set your telescope up in the daytime, and make sure you bring out a variety of eyepieces with you. Find an easy target that is relatively far away, like a streetlight or the top of a telephone pole. Starting with the lowest power eyepiece, adjust your finder bracket until you have "matching" views. The more accurate you are, the easier it will be when you trade out your low power eyepiece for something a little stronger.

Now do just that; put in a medium-powered eyepiece and do the same thing, being as accurate as you can. Finally, it's time for the high-powered eyepiece. Once you have finished this alignment process, you can either wait for the sun to go down to finish tweaking your finder, or you can put your telescope away and wait until the next time. Either way, once it is dark, find something bright, like the Moon or Venus or Jupiter, and center it in your finder. Now install the medium-powered eyepiece and check your view. If the object is not centered, make your adjustments, then insert the high-powered eyepiece and check again. Once you have made the necessary tweaks, you are good to go. From now on, unless you remove the finder from the bracket or something else happens to severely change alignment, you should only have to make small tweaks before every observing session. I know it sounds like a lot of trouble to go through for such a "small" thing, but trust me, I have seen more beginners make the mistake of trying to do finder alignments in the dark on small, dim objects, and it is not a pretty sight! All they want to do is observe, and they feel like they are wasting precious time doing silly things. A well-aligned finder makes astronomy SO much easier...give yourself a break and do the hard part during the day, and you won't be sorry!

Out of Stock

Explore Scientific Focuser for AR Series Telescopes (2") [ES-FOCDAR-00]

$119.99 USD

Explore Scientific: All Explore focusers are 2", and come with 1.25" compression ring eyepiece adapters. The adapter, or your 2" eyepiece or barreled accessory, locks securely into place with three set screws so everything stays put. All of these focusers have 10:1 micro-focusing knobs as well as a rough focus knob. 10:1 means that you would have to rotate the microfocusing knob ten times to get the same focus movement with just one turn, or rotation, of the larger knob. The focus knobs themselves are large and knurled, so that you can grip them easily, even when your hands are cold or you are wearing gloves. A tension adjustment feature is included on all focusers. The ability to lock and/or adjust the tension on the drawtube is a nice characteristic, and you'll appreciate it when you increase or decrease the weight of eyepieces, cameras, or other accessories.

Out of Stock

Explore Scientific 2" ED APO Replacement Focuser [ES-FOCEDAPO-RP]

$199.99 USD

Explore Scientific: All Explore focusers are 2", and come with 1.25" compression ring eyepiece adapters. The adapter, or your 2" eyepiece or barreled accessory, locks securely into place with three set screws so everything stays put. All of these focusers have 10:1 micro-focusing knobs as well as a rough focus knob. 10:1 means that you would have to rotate the microfocusing knob ten times to get the same focus movement with just one turn, or rotation, of the larger knob. The focus knobs themselves are large and knurled, so that you can grip them easily, even when your hands are cold or you are wearing gloves. A tension adjustment feature is included on all focusers. The ability to lock and/or adjust the tension on the drawtube is a nice characteristic, and you'll appreciate it when you increase or decrease the weight of eyepieces, cameras, or other accessories.

Out of Stock

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