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Canada's top-tier Telescopes & Accessories

Refractors


52 products

  1. 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
    $1,199.99 USD

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  2. 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
    $1,599.99 USD $1,899.99 USD
    On sale, save $300.00 USD


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  3. 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
    $2,599.99 USD $2,999.99 USD
    On sale, save $400.00 USD


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  4. 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.

     

    $1,899.99 USD $2,199.99 USD
    On sale, save $300.00 USD


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  5. 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
    $1,999.99 USD $2,399.99 USD
    On sale, save $400.00 USD


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  6. Explore Scientific: Reveal celestial wonders like the desolate beauty of the lunar terrain, the serene structure of Saturn’s rings or the brightest deep sky treasures of the Messier catalog with Explore Scientific’s 80mm Apochromatic Refractor. Offering true diffraction-limited optics and sized to encourage spontaneous stargazing sessions, this high-quality telescope is a perfect grab-and-go instrument for exploring the skies. 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. Although it is a standout telescope on its own, the 80mm also is compact enough to mount on a larger telescope, which can add versatility to your astrophotography experience by separating the guiding and imaging duties. 

    $849.99 USD

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  7. Explore Scientific: From our Moon’s chiseled craters to Jupiter’s orderly cloud belts to the blue-white stars of the Orion Nebula popping against the complex misty cloud they call home, EXPLORE SCIENTIFIC ED102MM TRIPLET ESSENTIAL SERIES can open up a treasure trove of night sky treats.

    A nice compromise between portability and aperture, this versatile high-end telescope offers true diffraction-limited optics and has an objective lens size that performs well in lunar, planetary and deep sky viewing situations.

    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.

     

     

    $999.99 USD $1,199.99 USD
    On sale, save $200.00 USD

    1 in stock


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  8. 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.

    $1,699.99 USD $1,899.99 USD
    On sale, save $200.00 USD

    3 in stock


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  9. Explore Scientific: The 102mm Air-Spaced Doublet AR Series is very portable, a real grab-and-go instrument! Like its two larger brothers, the AR127, and the AR152, these are classic air-spaced, crown-and-flint, doublet achromatic refractors with superior-class optical figure, in a short (f/6.5) focal length design. These optics are an extreme value, produce stunning images of deep sky objects, double stars, planets, and the moon that are a small fraction of the price of comparable aperture apochromat refractors. Finally one can own a diffraction-limited high quality refractor for a relatively modest investment. Designed to handle the rigors of public star parties and educational outreach, the Explore Scientific AR Series has standard hardware which includes a precision two-speed focuser, a 99% Reflective 2-inch Diagonal Mirror, and an 8×50 Finder Scope.

    You can be confident that the quality and construction of these telescopes will allow heavy use for many years and are backed with the Explore STAR Transferrable Extended Life of the Product Warranty. The optics in their collimatable lens cell are fully multi-coated to eliminate light scatter and maintain image contrast. Although you may never need to adjust optical alignment, the AR Series allows for collimating the lens set should the telescope ever require it. Contrast is further enhanced with multiple baffles that mask and deflect unwanted stray light. The Explore Scientific Air-Spaced Doublet AR Series telescopes include a precision 2-inch two-speed focuser as standard equipment. The eyepiece holder uses a compression ring to prevent the eyepiece or camera barrel from scoring. On those prestine nights of steady seeing, Saturn’s Rings can forever affect the hearts and minds of almost anyone who lays eyes on them. It’s nights like these that astronomers like to set up their refractors and push the magnification to the limits, not only to see the magnificence of the planet at greater scale but to really test the optical and mechanical quality of the telescope. Many telescopes are only supplied with a standard single-speed focuser, you will find that a tiny nudge will throw out focus and turn your night into one of frustration.

    The Universal Adjustable Mounting Plate of the AR 102 fits on many popular equatorial and Altaz mounts, including mounts supplied by Explore Scientific, Celestron, Vixen, and others. Instead of using a cast metal part, Explore Scientific’s Universal Mounting Plate is made from extruded aluminum for added strength, it is afterall what secures your telescope to the mount. Adjustment screws and locking bolts are also included to allow adjustments to position the angle of the telescope when it is placed on its mount, an important feature when using an equatorial mount. The Two-Inch Dielectric Diagonal includes a 1.25″ eyepiece holder adapter and dust covers to protect the mirror. The purpose of a diagonal is to securely hold your eyepiece and to give you a comfortable viewing angle. Provided as standard equipment, Explore Scientific’s Two Inch Dielectric Diagonal incorporates a light-weight, one-piece diagonal body that securely cradles the precision polished diagonal flat mirror, insuring precision alignment. Ultra-high reflective coatings (99% reflective) composed of multiple thin layers of dielectric material delivers maximum light output. Both 2″ and 1.25″ eyepiece holders use compression rings instead of a simple set-screw to more securely hold your valued eyepiece (or imaging device) and to minimize scoring of eyepiece barrels. You can thread standard 48mm filters into the barrel. The purpose of a diagonal is to securely hold your eyepiece and to give you a comfortable viewing angle. Provided as standard equipment, Explore Scientific’s Two Inch Diagonal incorporates a light-weight, one-piece diagonal body that securely cradles the precision polished diagonal flat mirror, insuring precision alignment.

    The Explore Scientific 8×50 Finder Scope provides a true field of view of 6°. Its coated optics provide a bright high-resolution image so that many faint stars and nebulosity can be detected for precise aiming. The front objective can be custom focused to provide a sharp image every time. Optical Design: Air-Spaced Doublet Achromatic Refractor Clear Aperture: 102mm Focal Length: 663mm Focal Ratio: f/6.5 Resolving Power: 1.14 arc seconds Coatings: Fully Multi-Coated Limiting Stellar Magnitude: 12.5 Focuser: Two-Speed Crayford-Style, w/ Adjustable Tension and Lock Finder Scope: 8×50 Straight; Adjustable Objective Focus; Dual-Ring, Six-Point, Bracket w/Quick Release Shoe Cradle/Saddle Plate: Dual Ring Style – Fits Explore Scientific Mounts; and Other Third Party Mounts that Accept Vixen-Type Rail Tube Diameter: 3.96″ – 100.7mm Dew Shield Diameter: 7.5″ – 100.7mm Tube Length (eyepiece holder to end of dew shield: 25.5″ – 648mm Tube Construction: Aluminum; Stainless Steel Optical Tube Assembly Weight (with all standard accessories): 11.3 lbs – 4.67 kg

    $449.99 USD $549.99 USD
    On sale, save $100.00 USD


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  10. Explore Scientific: The AR 127mm is a classic air-spaced, crown-and-flint, doublet achromatic refractor with superior-class optical figure, in a short (f/6.5) focal length design. The optics are an extreme value, produce stunning images of deep sky objects, double stars, planets, and the moon that are a small fraction of the price of comparable aperture apochromat refractors. Finally one can own a diffraction-limited high quality refractor for a relatively modest investment. Designed to handle the rigors of public star parties and educational outreach, the Explore Scientific AR Series has standard hardware which includes a precision two-speed focuser, a 99% Reflective 2-inch Diagonal Mirror, and an 8×50 Finder Scope. You can be confident that the quality and construction of these telescopes will allow heavy use for many years and are backed with the Explore STAR Transferrable Extended Life of the Product Warranty. The optics in their collimatable lens cell are fully multi-coated to eliminate light scatter and maintain image contrast. Although you may never need to adjust optical alignment, the AR Series allows for collimating the lens set should the telescope ever require it. Contrast is further enhanced with multiple baffles that mask and deflect unwanted stray light. The Explore Scientific Air-Spaced Doublet AR Series telescopes include a precision 2-inch two-speed focuser as standard equipment. The eyepiece holder uses a compression ring to prevent the eyepiece or camera barrel from scoring. On those prestine nights of steady seeing, Saturn’s Rings can forever affect the hearts and minds of almost anyone who lays eyes on them. It’s nights like these that astronomers like to set up their refractors and push the magnification to the limits, not only to see the magnificence of the planet at greater scale but to really test the optical and mechanical quality of the telescope. Many telescopes are only supplied with a standard single-speed focuser, you will find that a tiny nudge will throw out focus and turn your night into one of frustration. The Universal Adjustable Mounting Plate of the AR 127 fits on many popular equatorial and Altaz mounts, including mounts supplied by Explore Scientific, Celestron, Vixen, and others. Instead of using a cast metal part, Explore Scientific’s Universal Mounting Plate is made from extruded aluminum for added strength, it is afterall what secures your telescope to the mount. Adjustment screws and locking bolts are also included to allow adjustments to position the angle of the telescope when it is placed on its mount, an important feature when using an equatorial mount. The Two-Inch Dielectric Diagonal includes a 1.25″ eyepiece holder adapter and dust covers to protect the mirror. The purpose of a diagonal is to securely hold your eyepiece and to give you a comfortable viewing angle. Provided as standard equipment, Explore Scientific’s Two Inch Dielectric Diagonal incorporates a light-weight, one-piece diagonal body that securely cradles the precision polished diagonal flat mirror, insuring precision alignment. Ultra-high reflective coatings (99% reflective) composed of multiple thin layers of dielectric material delivers maximum light output. Both 2″ and 1.25″ eyepiece holders use compression rings instead of a simple set-screw to more securely hold your valued eyepiece (or imaging device) and to minimize scoring of eyepiece barrels. You can thread standard 48mm filters into the barrel. The purpose of a diagonal is to securely hold your eyepiece and to give you a comfortable viewing angle. Provided as standard equipment, Explore Scientific’s Two Inch Diagonal incorporates a light-weight, one-piece diagonal body that securely cradles the precision polished diagonal flat mirror, insuring precision alignment. The Explore Scientific 8×50 Finder Scope provides a true field of view of 6°. Its coated optics provide a bright high-resolution image so that many faint stars and nebulosity can be detected for precise aiming. The front objective can be custom focused to provide a sharp image every time. 

    $599.99 USD $699.99 USD
    On sale, save $100.00 USD

    2 in stock


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  11. Explore Scientific: The 152mm Air-Spaced Doublet AR Series is a nice and great refractor for sky observation. The Explore Scientific AR Serie refractors are classic air-spaced, crown-and-flint, doublet achromatic refractors with superior-class optical figure, in a short (f/6.5) focal length design. These optics are an extreme value, produce stunning images of deep sky objects, double stars, planets, and the moon that are a small fraction of the price of comparable aperture apochromat refractors. Finally one can own a diffraction-limited high quality refractor for a relatively modest investment. Designed to handle the rigors of public star parties and educational outreach, the Explore Scientific AR Series has standard hardware which includes a precision two-speed focuser, a 99% Reflective 2-inch Diagonal Mirror, and an 8×50 Finder Scope.

    You can be confident that the quality and construction of these telescopes will allow heavy use for many years and are backed with the Explore STAR Transferrable Extended Life of the Product Warranty. The optics in their collimatable lens cell are fully multi-coated to eliminate light scatter and maintain image contrast. Although you may never need to adjust optical alignment, the AR Series allows for collimating the lens set should the telescope ever require it. Contrast is further enhanced with multiple baffles that mask and deflect unwanted stray light. The Explore Scientific Air-Spaced Doublet AR Series telescopes include a precision 2-inch two-speed focuser as standard equipment. The eyepiece holder uses a compression ring to prevent the eyepiece or camera barrel from scoring. On those prestine nights of steady seeing, Saturn’s Rings can forever affect the hearts and minds of almost anyone who lays eyes on them. It’s nights like these that astronomers like to set up their refractors and push the magnification to the limits, not only to see the magnificence of the planet at greater scale but to really test the optical and mechanical quality of the telescope. Many telescopes are only supplied with a standard single-speed focuser, you will find that a tiny nudge will throw out focus and turn your night into one of frustration.

    The Universal Adjustable Mounting Plate of the AR 152 fits on many popular equatorial and Altaz mounts, including mounts supplied by Explore Scientific, Celestron, Vixen, and others. Instead of using a cast metal part, Explore Scientific’s Universal Mounting Plate is made from extruded aluminum for added strength, it is afterall what secures your telescope to the mount. Adjustment screws and locking bolts are also included to allow adjustments to position the angle of the telescope when it is placed on its mount, an important feature when using an equatorial mount. The Two-Inch Dielectric Diagonal includes a 1.25″ eyepiece holder adapter and dust covers to protect the mirror. The purpose of a diagonal is to securely hold your eyepiece and to give you a comfortable viewing angle. Provided as standard equipment, Explore Scientific’s Two Inch Dielectric Diagonal incorporates a light-weight, one-piece diagonal body that securely cradles the precision polished diagonal flat mirror, insuring precision alignment. Ultra-high reflective coatings (99% reflective) composed of multiple thin layers of dielectric material delivers maximum light output. Both 2″ and 1.25″ eyepiece holders use compression rings instead of a simple set-screw to more securely hold your valued eyepiece (or imaging device) and to minimize scoring of eyepiece barrels. You can thread standard 48mm filters into the barrel. The purpose of a diagonal is to securely hold your eyepiece and to give you a comfortable viewing angle. Provided as standard equipment, Explore Scientific’s Two Inch Diagonal incorporates a light-weight, one-piece diagonal body that securely cradles the precision polished diagonal flat mirror, insuring precision alignment.

    The Explore Scientific 8×50 Finder Scope provides a true field of view of 6°. Its coated optics provide a bright high-resolution image so that many faint stars and nebulosity can be detected for precise aiming. The front objective can be custom focused to provide a sharp image every time. Optical Design: Air-Spaced Doublet Achromatic Refractor Clear Aperture: 152mm Focal Length: 988 mm Focal Ratio: f/6.5 Resolving Power: 0.77 arc seconds Coatings: Fully Multi-Coated Limiting Stellar Magnitude: 13.4 Focuser: Two-Speed Crayford-Style, w/ Adjustable Tension and Lock Finder Scope: 8×50 Straight; Adjustable Objective Focus; Dual-Ring, Six-Point, Bracket w/Quick Release Shoe Cradle/Saddle Plate: Dual Ring Style – Fits Explore Scientific Mounts; and Other Third Party Mounts that Accept Vixen-Type Rail Tube Diameter: 6.21″ – 157.7mm Tube Length (eyepiece holder to end of dew shield: 41″ – 1041.4mm Tube Construction: Aluminum; Stainless Steel Optical Tube Assembly Weight (with all standard accessories): 23.5 lbs; – 10.7 kgs.

    $799.99 USD $949.99 USD
    On sale, save $150.00 USD

    2 in stock


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  12. Explore Scientific: Reveal celestial wonders like the desolate beauty of the lunar terrain, the serene structure of Saturn’s rings or the brightest deep sky treasures of the Messier catalog with Explore Scientific’s 115mm FPL-53 Apochromatic Refractor.

    This is an all new design from Explore Scientific and offers greater quality optics provided by Ohara. We use Ohara FPL-53 glass in these optics which is very similar in characteristics as Hoya FCD-100. 

    Combining it with optical glass of high refractive index allows us to achieve unprecedented advanced chromatic aberration correction. Ohara FPL-53 is considered the best glass ever produced by Ohara.Having a true diffraction-limited optical design and sized to encourage spontaneous stargazing sessions, this high-quality telescope is a perfect grab-and-go instrument for exploring the skies.

    Featuring an air-spaced triplet optical design that virtually eliminates chromatic aberrations, this telescope generates brilliant high-contrast images by combining genuine Ohara FPL-53 extra-low dispersion (ED) glass and proprietary EMD enhanced multi-layer coatings on all optical surfaces.

    In addition, this amazing scope also includes a 3" Hexagonal focuser with very rigid design and strong support. Up to 10 lbs of gear can be loaded onto this focuser. (Finder Scope NOT Included)

    $3,499.99 USD

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  13. Explore Scientific: Reveal celestial wonders like the desolate beauty of the lunar terrain, the serene structure of Saturn’s rings or the brightest deep sky treasures of the Messier catalog with Explore Scientific’s 140mm FPL-53 Apochromatic Refractor.

    This is an all new design from Explore Scientific and offers greater quality optics provided by Ohara. We use Ohara FPL-53 glass in these optics which is very similar in characteristics as Hoya FCD-100. 

    Combining it with optical glass of high refractive index allows us to achieve unprecedented advanced chromatic aberration correction. Ohara FPL-53 is considered the best glass ever produced by Ohara.Having a true diffraction-limited optical design and sized to encourage spontaneous stargazing sessions, this high-quality telescope is a perfect grab-and-go instrument for exploring the skies.

    Featuring an air-spaced triplet optical design that virtually eliminates chromatic aberrations, this telescope generates brilliant high-contrast images by combining genuine Ohara FPL-53 extra-low dispersion (ED) glass and proprietary EMD enhanced multi-layer coatings on all optical surfaces.

    In addition, this amazing scope also includes a 3" Hexagonal focuser with very rigid design and strong support. Up to 10 lbs of gear can be loaded onto this focuser. (Finder Scope NOT Included)

    $5,999.99 USD

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  14. Explore Scientific: Reveal celestial wonders like the desolate beauty of the lunar terrain, the serene structure of Saturn’s rings or the brightest deep sky treasures of the Messier catalog with Explore Scientific’s 165mm FPL-53 Apochromatic Refractor.

    This is an all new design from Explore Scientific and offers greater quality optics provided by Ohara. We use Ohara FPL-53 glass in these optics which is very similar in characteristics as Hoya FCD-100. 

    Combining it with optical glass of high refractive index allows us to achieve unprecedented advanced chromatic aberration correction. Ohara FPL-53 is considered the best glass ever produced by Ohara.Having a true diffraction-limited optical design and sized to encourage spontaneous stargazing sessions, this high-quality telescope is a perfect grab-and-go instrument for exploring the skies.

    Featuring an air-spaced triplet optical design that virtually eliminates chromatic aberrations, this telescope generates brilliant high-contrast images by combining genuine Ohara FPL-53 extra-low dispersion (ED) glass and proprietary EMD enhanced multi-layer coatings on all optical surfaces.

    In addition, this amazing scope also includes a 3" Hexagonal focuser with very rigid design and strong support. Up to 10 lbs of gear can be loaded onto this focuser. (Finder Scope NOT Included)

    $11,999.99 USD

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  15. William Optics: New ZenithStar 73 , F/5.9 FPL53 doublet APO in Blue , 2.5" R&P focuser with Vixen style dovetail , Mounting rings and Guiding rings. - Blue

    WO-Z73-N.jpg

    WO-Z73Box.jpg

    $610.64 USD

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  16. William Optics: New ZenithStar 73 , F/5.9 FPL53 doublet APO in Blue , 2.5" R&P focuser with Vixen style dovetail , Mounting rings and Guiding rings. - RED

    WO-Z73-N.jpg

    WO-Z73Box.jpg

    $610.64 USD
    1 in stock


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  17. William Optics: New ZenithStar 73 , F/5.9 FPL53 doublet APO in Blue , 2.5" R&P focuser with Vixen style dovetail , Mounting rings and Guiding rings. - GOLD

    WO-Z73-N.jpg

    WO-Z73Box.jpg

    $610.64 USD

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  18. William Optics: The Zenithstar 61 is designed for both daytime and nighttime viewing, as an outstanding travel scope. We recommend purchasing a WO 2” star diagonal to make the most of these little telescopes.
    Since the Zenithstar 61 is well suited to viewing nebulae, clusters, large galaxies, andcomets, we recommend the use of high-quality wide-angle eyepieces. The WO SWAN, XWA, and SPL series eyepieces are available in a variety of focal lengths. Viewing the moon and planets is also impressive at magnifications of 120X when the seeing conditions permit.
    To calculate the magnification of your telescope and eyepiece combination, divide the telescope focal length in mm by the eyepiece focal length in mm.
    Keep in mind that the atmosphere plays an important role in seeing conditions, and only the best-seeing conditions will support high power viewing. Additional power under less than ideal seeing conditions will not result in an increase in viewable details, and lower powered eyepieces should there be used under those conditions. It’s easiest to locate objects using low-power eyepieces (20X magnification) and then zoom in by switching to higher powered eyepieces. The largest field of view will be seen using a 12x low power-wide field of view eyepiece.
    A stable tripod or mount is recommended for optimal viewing. This includes high-quality photography tripods, and German Equatorial mounts, which are designed for astronomical use and include precise tracking of celestial objects. Optional accessories from WO include mounting rings and plates, super high quality 2” Quartz star diagonals which provide for superior viewing and high-quality images.
    The Zenithstar Telescopes are suitable for large-field astrophotography; Zenithstar 61 has a great color correction at a fast speed of f5.9.

    $471.59 USD

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  19. William Optics: The Zenithstar 61 is designed for both daytime and nighttime viewing, as an outstanding travel scope. We recommend purchasing a WO 2” star diagonal to make the most of these little telescopes.
    Since the Zenithstar 61 is well suited to viewing nebulae, clusters, large galaxies, andcomets, we recommend the use of high-quality wide-angle eyepieces. The WO SWAN, XWA, and SPL series eyepieces are available in a variety of focal lengths. Viewing the moon and planets is also impressive at magnifications of 120X when the seeing conditions permit.
    To calculate the magnification of your telescope and eyepiece combination, divide the telescope focal length in mm by the eyepiece focal length in mm.
    Keep in mind that the atmosphere plays an important role in seeing conditions, and only the best-seeing conditions will support high power viewing. Additional power under less than ideal seeing conditions will not result in an increase in viewable details, and lower powered eyepieces should there be used under those conditions. It’s easiest to locate objects using low-power eyepieces (20X magnification) and then zoom in by switching to higher powered eyepieces. The largest field of view will be seen using a 12x low power-wide field of view eyepiece.
    A stable tripod or mount is recommended for optimal viewing. This includes high-quality photography tripods, and German Equatorial mounts, which are designed for astronomical use and include precise tracking of celestial objects. Optional accessories from WO include mounting rings and plates, super high quality 2” Quartz star diagonals which provide for superior viewing and high-quality images.
    The Zenithstar Telescopes are suitable for large-field astrophotography; Zenithstar 61 has a great color correction at a fast speed of f5.9.

    $471.59 USD

      Add to cart
  20. William Optics: The Zenithstar 61 is designed for both daytime and nighttime viewing, as an outstanding travel scope. We recommend purchasing a WO 2” star diagonal to make the most of these little telescopes.
    Since the Zenithstar 61 is well suited to viewing nebulae, clusters, large galaxies, andcomets, we recommend the use of high-quality wide-angle eyepieces. The WO SWAN, XWA, and SPL series eyepieces are available in a variety of focal lengths. Viewing the moon and planets is also impressive at magnifications of 120X when the seeing conditions permit.
    To calculate the magnification of your telescope and eyepiece combination, divide the telescope focal length in mm by the eyepiece focal length in mm.
    Keep in mind that the atmosphere plays an important role in seeing conditions, and only the best-seeing conditions will support high power viewing. Additional power under less than ideal seeing conditions will not result in an increase in viewable details, and lower powered eyepieces should there be used under those conditions. It’s easiest to locate objects using low-power eyepieces (20X magnification) and then zoom in by switching to higher powered eyepieces. The largest field of view will be seen using a 12x low power-wide field of view eyepiece.
    A stable tripod or mount is recommended for optimal viewing. This includes high-quality photography tripods, and German Equatorial mounts, which are designed for astronomical use and include precise tracking of celestial objects. Optional accessories from WO include mounting rings and plates, super high quality 2” Quartz star diagonals which provide for superior viewing and high-quality images.
    The Zenithstar Telescopes are suitable for large-field astrophotography; Zenithstar 61 has a great color correction at a fast speed of f5.9.

    $471.59 USD

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  21. William Optics: Flat73 for Z73 (Power x 1:1)

    $188.34 USD

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  22. William Optics: Soft carry case for 71mm series telescope. Made of high quality nylon fabric with water resistant coating on the inside surface. Features the company name and swan logo on the outside, carrying handles, and shoulder strap.

    Please note that the case is not padded and foam is not included. This bag requires that you use the original foam that your 71mm series telescope came boxed in.

    Specifications: outside dimensions of the case will be 15.75" (L) x 6.5" (W) x 12.5" (H).

    Case weighs 1lb-4oz.

    $65.77 USD
    2 in stock


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  23. William Optics: When you are looking at deep sky object in a starry night, have you ever dreamed about taking beautiful photos with clear details?
    By using the FLP-53 glass, our Zenithstar 103 APO provides apochromatic grade/ color correction, extreme sharpness clear details, and colorful images. With our 0.8 reducer flattener the image circle is up to full frame  and the focal length is about 560 mm, that's perfect for imaging deep sky objects. 

    From $1,238.94 USD

      Choose Options
  24. William Optics: Cross Platform
    The FLAT6AIIi brings imaging to a next level of adjustability and image quality.  You will gain from the interchangeable design across many WO lens with this one flattener.  
    This very elegant 2" reducer/field flattener has been designed to optimize the flat-field imaging performance of William Optics f/6 to f7.5 ratio refractors.  Wo flat 6AIII will provide good illumination and flat field across 97% of the full frame sized sensors.
    Full frame Size
    - Designed with nearly Full frame chip-size DSLR cameras in mind.
    - FMC triplet APO design
    - Produced entirely wikth the best ohara optical glasses.

    Amazing
    - Reducing factor 0.8X
    - Adjustable design, for perfect back focus it can be sused with other models of refractor
    - 48mm filter ready

    Superb Finish
    - William Optics polished anodized finish
    - All internal surfaces threaded and blackenend to prevent reflections.

    Easy to use
    - Will accept any standard 48mm T-ring for your camera.

    Suitable for 
    -GT71, GT81, Z8, Z103

    Adjustable distance
    - GT71 = 9.1mm
    - GT81 = 7.1mm
    - Z81 = 5.2mm
    - Z103 = 2.5mm

    $208.94 USD

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  25. William Optics: 20th anniversary limited GT 71 (3 element FPL53 design) F/5.9, OTA.
    All new 2" focuser , rings, Vixen style dovetail base and High quality ALUMINUM carry case - Limited quantity only

    The stunning new William Optics Gran Turismo 71 Apo is the new jewel of the apochromatic refractor world.  The new GT71 features a 3-element opbjective using high-quality FPL-53 extra-low dispersion glass that reduces any secondary spectrum to an unbelievable degree.

    Optically Unbeatable

    ·   Triplet air-spaced objective (FPL-53) in adjustable CNC machined ultra high precision lens cell.

    ·   Extremely sharp with excellent color correction.

    ·   Each lens is Fully Multi-Coated with a special super-high transmission coating (STM Coating) on all surfaces

    ·   This f/5.9 lens is ideal for astrophotography. 

    2" V-power Focuser

    ·    Extra-smooth new 2" Crayford focuser with 1:10 dual speed: a treat to use during astrophotography. No image shifting (up to 15Lb.)!

    ·    Comes with two locking screws on angled positions for heavy load applications.

    ·    Stainless steel reinforcement inserts on both sides and on the back to allow heavy loading without problems.

    ·    Graduated scale for precise camera alignment.

    Simply Beautiful Finish

    ·    quality fit and finish: powder-painted white CNC-machined aluminum tube, gold trim finish, retractable dewshield, dewshield cap.

    ·    Top quality anodizing.

    ·    Very compact for carrying on flights.

    Accessories NOT Included:

    - Finder Bracket (Optional)

    - Finder Scope (Optional)

    What's in the box?

    • Aluminium Carry Case - 2 Keys
    • 1.25" - 2" adapter
    • GT71 20th Anniversary Edition
    • 2 Mounting Rings
    • Dovetail Plate
    • 2 Years Warranty Card
    $991.74 USD

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  26. William Optics: 20th anniversary Golden GT 102 triplet designed with FPL53 F/6.9 OTA, all new 3" focuser , mounting rings and Free dovetail and High quality soft carry bag (2”-1.25” Rotolock adapter is optional accessories).

    Soft carry bag included!

    The new GT102 three-element super APO Anniversary offer superb quality for imaging and visual use at an affordable price.

    Package includes:

    -GT 102 three element design with center FPL-53 and other ED element glass (air spaced)

    -Mounting rings

    -Retractable dew shield with lock screw

    -All-new 3" Victory Edition Diamond Crayford design (Zero image shift)

    -2 speed knobs 1:10

    -Aperture: 102mm F6.9

    -Free vixen style dovetail plate

    -Weight: 11 lb

    -Length: 27"

     

    Attention to detail

    • Highly precise CNC machined lens cell.

    • Triple testing each lens by Zygo test to ensure the best optical quality.

    $2,474.94 USD

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  27. William Optics: 20th anniversary Golden GT 102 triplet designed with FPL53 F/6.9 OTA, all new 3" focuser , mounting rings and Free dovetail and High quality soft carry bag (2”-1.25” Rotolock adapter is optional accessories).

    Soft carry bag included!

    The new GT102 three-element super APO Anniversary offer superb quality for imaging and visual use at an affordable price.

    Package includes:

    -GT 102 three element design with center FPL-53 and other ED element glass (air spaced)

    -Mounting rings

    -Retractable dew shield with lock screw

    -All-new 3" Victory Edition Diamond Crayford design (Zero image shift)

    -2 speed knobs 1:10

    -Aperture: 102mm F6.9

    -Free vixen style dovetail plate

    -Weight: 11 lb

    -Length: 27"

     

    Attention to detail

    • Highly precise CNC machined lens cell.

    • Triple testing each lens by Zygo test to ensure the best optical quality.

    $2,474.94 USD

      Add to cart
  28. William Optics: 2 inch Rotolock M63 for Gran Turismo 71 BLUE

    $95.64 USD
    1 in stock


      Add to cart
  29. William Optics: 2 inch Rotolock M63 for Gran Turismo 71 RED

    $95.64 USD

      Add to cart
  30. William Optics: All new, a unique, RotoLock high-quality fully multi coated WO 50mm f/4 Guiding scope that fits perfectly on your William Optics and other telescopes.
    The tube diameter is 54mm and dew shiled of 58mm.

    Convenient
    • Guiding scope gives sharpest image and straight through viewing with an inverted image.
    • High-quality 50 mm objective.
    • 5.7 deg field of view.

    Nice Fit & Finish
    • White Powder painted with 1.25" color RotoLock.

    •Perfectly suited for William Optics or other refractor.

    •Guide Scope Weight: 460g

    $136.84 USD
    1 in stock


      Add to cart
  31. William Optics: All new, a unique, RotoLock high-quality fully multi coated WO 50mm f/4 Guiding scope that fits perfectly on your William Optics and other telescopes.
    The tube diameter is 54mm and dew shiled of 58mm.

    Convenient
    • Guiding scope gives sharpest image and straight through viewing with an inverted image.
    • High-quality 50 mm objective.
    • 5.7 deg field of view.

    Nice Fit & Finish
    • White Powder painted with 1.25" color RotoLock.

    •Perfectly suited for William Optics or other refractor.

    •Guide Scope Weight: 460g

    $136.84 USD
    1 in stock


      Add to cart
  32. William Optics: FLT 151mm f/5.3 Three element Design with FPL-53 comes with 4" F-Touch focuser and mounting rings.

    Experience the best of the line: the Williams Optics FLT151 Triplet APO f/6.6 Refractor with  All-New 2014 model 3.5" R&P Focuser.

    FLT151 Features a top-quality triplet air-spaced objective using outstanding Ohara FPL-53 type glass which provides superb correction for these refractors. In addition, this lens combination provides very high contrast and a flat image field. For visual observing and also with astrophotography you will discover a wealth of detail and tremendously clear image reproduction.

    Optically unbeatable

    Features a top-quality triplet air-spaced objective with FPL-53 glass; 

    This scope delivers extremely sharp images and has a great color correction. It is ideal for astrophotography.
     

    R & P Focuser

    Extra-smooth All-New 2014 model 3.5" R&P Focuser: a treat to use during astrophotography. No more image shifting! 

    360 deg. rotatable.

    Extra-heavy duty.

    Graduated scale for precise camera alignment

    Two-speed microfocuser is STANDARD on all units

    Large aluminum knobs and protection dual speed cap.


    Simply Beautiful Finish

    Solid CNC-machined mounting rings.

    Pure William Optics quality fit and finish: powder-painted white CNC-machined aluminum tube, red color finish, retractable dewshield, anodized 360 deg. rotatable R&P focuser, dewshield cap. 

    Despite of its 151mm objective, the scope is still very compact and solid. 

    Highly precise CNC machined lens cell.
     

    Total Quality Package

    2" & 1.25" adapters included. 

    All with brass anti-marring compression rings. 

    168mm mounting rings included in the price. 

    Though you will never need it, you have a 2-year warranty from WO, and the certainty that we will be there to assist you even beyond that, if you need!

    Aluminum knob's protection cover Included .

    Thermometer knob included .

    $9,169.94 USD

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  33. William Optics: Blue WO-Star 71 ( 4 element design) F/4.9, OTA. 2.5" R&P focuser , Vixen style dovetail base , aluminum knob protection cover and High quality soft carry bag (Limited)

    Features

    This scope is ultimately designed for astronomers who want the best results in photographic/CCD imaging. The WO-Star71 imaging telescope provides pinpoint stars at the very edge of a 45mm imaging circle.

    Key Features

      71mm f/4.9 Imaging Refractor Telescope.

      FPL-53 glass for color free apochromatic performance.

      4 elements in 3 groups (2-1-1- configuration; new, unique, patented design - not a conventional objective/flattener/reducer design).

      Covers 48mm full frame imaging circle.

      2.5" dual speed R&P focuser.

      Includes mounting rings and Vixen style dovetail.

      Weight = 4.19 lbs / 1.9 kg (OTA only); 4.85 lbs / 2.2 kg (OTA with rings and dovetail).

      Focuser drawtube travel = 2.5" / 35mm.

    Additional Information

      Focuser drawtube terminates in a male M48 thread. Telescope does not come with a wide M48-Canon EOS adapter ring. Similar rings are available from other supplier for other brands of cameras. Not a conventional 2" focuser tube with locking thumbscrews..

      Optional 1.25" 90-deg dielectric mirror diagonal sold separately for those wishing to use this as a visual. This diagonal comes with a custom adapter that connects directly to the M63 female thread on the telescope's focuser tube; you cannot use standard 1.25" diagonals. Telescope cannot reach focus with larger 2" diagonals.

    $1,218.34 USD

      Add to cart
  34. William Optics: Gold WO-Star 71 (4 element design) F/4.9, OTA. 2.5" R&P focuser , Vixen style dovetail base , aluminum knob protection cover and High quality soft carry bag

    Features

    This scope is ultimately designed for astronomers who want the best results in photographic/CCD imaging. The WO-Star71 imaging telescope provides pinpoint stars at the very edge of a 45mm imaging circle.

    Key Features

      71mm f/4.9 Imaging Refractor Telescope.

      FPL-53 glass for color free apochromatic performance.

      4 elements in 3 groups (2-1-1- configuration; new, unique, patented design - not a conventional objective/flattener/reducer design).

      Covers 48mm full frame imaging circle.

      2.5" dual speed R&P focuser.

      Includes mounting rings and Vixen style dovetail.

      Weight = 4.19 lbs / 1.9 kg (OTA only); 4.85 lbs / 2.2 kg (OTA with rings and dovetail).

      Focuser drawtube travel = 2.5" / 35mm.

    Additional Information

      Focuser drawtube terminates in a male M48 thread. Telescope does not come with a wide M48-Canon EOS adapter ring. Similar rings are available from other supplier for other brands of cameras. Not a conventional 2" focuser tube with locking thumbscrews..

      Optional 1.25" 90-deg dielectric mirror diagonal sold separately for those wishing to use this as a visual. This diagonal comes with a custom adapter that connects directly to the M63 female thread on the telescope's focuser tube; you cannot use standard 1.25" diagonals. Telescope cannot reach focus with larger 2" diagonals.

    $1,218.34 USD

      Add to cart
  35. Takahashi America: The FS series of apochromatic refracting telescopes from Takahashi provides a balance of high performance, compact size, and low cost.  At its heart is a two-element fluorite lens set that provides outstanding performance for both visual and imaging applications.  The FS series makes use of several reducers, extenders and flatteners to further enhance its capabilities and performance.

    FS-60CB

    The FS-60CB is a 60 mm refractor that employs a multi-coated, two element fluorite objective lens with a prime focal length of 355 mm. 

    With the dedicated C0.72X reducer, the FS-60CB is converted to an f/4.2 instrument.  The combination results in a 40 mm diameter image circle with 60% illumination across the entire field.  Illumination is maintained at 95% or more out to a 25 mm diameter, and is 72% illuminated out to a diameter of 35 mm.

    With the dedicated FS-60 flattener, the resulting field flatness is greatly improved out to the four corners of a full frame DSLR sensor.  The resulting combination is an f/6.2, 374 mm instrument with an image circle diameter of 44 mm.

    $870.00 USD
    Special Order


      Add to cart
  36. Takahashi America: The FS series of apochromatic refracting telescopes from Takahashi provides a balance of high performance, compact size, and low cost.  At its heart is a two-element fluorite lens set that provides outstanding performance for both visual and imaging applications.  The FS series makes use of several reducers, extenders and flatteners to further enhance its capabilities and performance.

    FS-60CB

    The FS-60CB is a 60 mm refractor that employs a multi-coated, two element fluorite objective lens with a prime focal length of 355 mm. 

    With the dedicated C0.72X reducer, the FS-60CB is converted to an f/4.2 instrument.  The combination results in a 40 mm diameter image circle with 60% illumination across the entire field. Illumination is maintained at 95% or more out to a 25 mm diameter, and is 72% illuminated out to a diameter of 35 mm.

    With the dedicated FS-60 flattener, the resulting field flatness is greatly improved out to the four corners of a full frame DSLR sensor.  The resulting combination is an f/6.2, 374 mm instrument with an image circle diameter of 44 mm.

    FS-60Q

    By attaching the Extender-CQ1.7X, the FS-60CB is converted into an FS-60Q, a 600 mm f/10 telescope consisting of one fluorite element, with a flat field across the image circle.

    Optical Tube Assembly only (mount, tripod, tube holder and finder sold separately). 
     

    $1,160.00 USD
    Special Order


      Add to cart
  37. Takahashi America: Like the FS series, the FC series are apochromatic refractors with two-element fluorite lenses.  The FC series have larger apertures and longer focal lengths than the FS series, and provide outstanding performance both for the visual observer and the digital imager.  The FC series has its own dedicated set of reducers and flatteners, and is also able to use some of these accessories from the TOA series.

     FC-100D

     The FC-100D series consists of an apochromatic fluorite Steinheil doublet with a 100 mm objective diameter.  Two focal lengths are available:  a 740 mm f/7.4 instrument, and a 900 mm f/9.0 instrument.  The front element uses an eco-glass for maximum light transmission, with a coated fluorite rear element for superb color correction. 

    FC-100DC

    The FC-100DC model features a fixed dew shield and a 2.2 inch rack and pinion focuser.  While a capable imaging instrument, it is designed with the visual observer in mind.

    FC-100DF

    The FC-100DF is optically identical to the DC model, but features an enhanced 2.7–inch focuser.  It also features a shorter tube length that provides additional back focus for digital imaging applications.  This added back focus allows use of the FC-35RD reducer, which converts the DF to an f/5.4 instrument.

    FC-100DL

    The FC-100DL is a full-fledged long focal length apochromatic refractor from Takahashi. This is the same FC-100DL that was offered in limited quantities in previous years. With the exception of the focal length, it is identical to the FC-100DF.

    Optical Tube Assembly only (mount, tripod, tube holder and finder sold separately). 

    $2,690.00 USD
    Special Order


      Add to cart
  38. Takahashi America: Like the FS series, the FC series are apochromatic refractors with two-element fluorite lenses.  The FC series have larger apertures and longer focal lengths than the FS series, and provide outstanding performance both for the visual observer and the digital imager.  The FC series has its own dedicated set of reducers and flatteners, and is also able to use some of these accessories from the TOA series.

    In this doublet design, Takahashi has paired the fluorite element with a low dispersion glass having a high refractive index.  This combination provides excellent optical performance across the entire visible spectrum with a Strehl ratio in excess of 97.6
    The FC-100DZ is a fluorite doublet with a 100 mm aperture and an 800 mm focal length.   In this doublet design, Takahashi has paired the fluorite element with a low dispersion glass having a high refractive index.  This combination provides excellent optical performance across the entire visible spectrum with a Strehl ratio in excess of 97.6% across this range.  In addition, to satisfy the increasing demands of today’s imaging system, this glass combination minimizes the blue halo sometimes present at shorter wavelengths.  This halo intensity is reduced by about 50% when compared to the existing FC-100D.
    The FC-100DZ is fully compatible with the accessories available used with the existing FC-100 telescopes, including the FC/FS Muli-flattener and the FC-35 0.66X Reducer.  With FC-35 reducer, this telescope becomes an excellent imaging system, illuminating a full frame chip at f/5.3.
    Mechanically, the FC-100DZ has a tube diameter of 95 mm and a retractable dew shield.  With the dew shield retracted and accessories removed, the total length is only 595 mm, easily carried on most commercial flights.  The FC-100DZ utilizes the same focuser used on the FC-100DF and DL and weighs approximately 3.8 kg.

     

    $2,860.00 USD
    Special Order


      Add to cart
  39. Takahashi America: Like the FS series, the FC series are apochromatic refractors with two-element fluorite lenses.  The FC series have larger apertures and longer focal lengths than the FS series, and provide outstanding performance both for the visual observer and the digital imager.  The FC series has its own dedicated set of reducers and flatteners, and is also able to use some of these accessories from the TOA series.

     FC-100D

     The FC-100D series consists of an apochromatic fluorite Steinheil doublet with a 100 mm objective diameter.  Two focal lengths are available:  a 740 mm f/7.4 instrument, and a 900 mm f/9.0 instrument.  The front element uses an eco-glass for maximum light transmission, with a coated fluorite rear element for superb color correction. 

    FC-100DC

    The FC-100DC model features a fixed dew shield and a 2.2 inch rack and pinion focuser.  While a capable imaging instrument, it is designed with the visual observer in mind.

    FC-100DF

    The FC-100DF is optically identical to the DC model, but features an enhanced 2.7–inch focuser.  It also features a shorter tube length that provides additional back focus for digital imaging applications.  This added back focus allows use of the FC-35RD reducer, which converts the DF to an f/5.4 instrument.

    FC-100DL

    The FC-100DL is a full-fledged long focal length apochromatic refractor from Takahashi. This is the same FC-100DL that was offered in limited quantities in previous years. With the exception of the focal length, it is identical to the FC-100DF.

    Optical Tube Assembly only (mount, tripod, tube holder and finder sold separately). 

    $2,450.00 USD
    Special Order


      Add to cart
  40. Takahashi America: Like the FS series, the FC series are apochromatic refractors with two-element fluorite lenses.  The FC series have larger apertures and longer focal lengths than the FS series, and provide outstanding performance both for the visual observer and the digital imager.  The FC series has its own dedicated set of reducers and flatteners, and is also able to use some of these accessories from the TOA series.

     FC-100D

     The FC-100D series consists of an apochromatic fluorite Steinheil doublet with a 100 mm objective diameter.  Two focal lengths are available:  a 740 mm f/7.4 instrument, and a 900 mm f/9.0 instrument.  The front element uses an eco-glass for maximum light transmission, with a coated fluorite rear element for superb color correction. 

    FC-100DC

    The FC-100DC model features a fixed dew shield and a 2.2 inch rack and pinion focuser.  While a capable imaging instrument, it is designed with the visual observer in mind.

    FC-100DF

    The FC-100DF is optically identical to the DC model, but features an enhanced 2.7–inch focuser.  It also features a shorter tube length that provides additional back focus for digital imaging applications.  This added back focus allows use of the FC-35RD reducer, which converts the DF to an f/5.4 instrument.

    FC-100DL

    The FC-100DL is a full-fledged long focal length apochromatic refractor from Takahashi. This is the same FC-100DL that was offered in limited quantities in previous years. With the exception of the focal length, it is identical to the FC-100DF.

    Optical Tube Assembly only (mount, tripod, tube holder and finder sold separately). 

    $2,240.00 USD
    Special Order


      Add to cart
  41. Takahashi America: Like the FS series, the FC series are apochromatic refractors with two-element fluorite lenses.  The FC series have larger apertures and longer focal lengths than the FS series, and provide outstanding performance both for the visual observer and the digital imager.  The FC series has its own dedicated set of reducers and flatteners, and is also able to use some of these accessories from the TOA series.

    FC-76D

    The two telescopes in the FC-76D series consists of an apochromatic fluorite doublet with a 76 mm objective diameter.  Both telescopes are 540 mm f/7.5 instruments.  The front element uses an eco-glass for maximum light transmission, with a coated fluorite rear element for superb color correction. 

    FC-76DCU

    The FC-76DCU model features a fixed dew shield and smaller, 80 mm diameter barrel for the same performance in a package featuring reduced weight and overall length.  It utilizes a 1.25 inch rack and pinion focuser.

    FC-76DS

    The FC-76DS model features a retractable dew shield and 95 mm diameter barrel.  The FC-76DC and DS are optically identical.  The DS model utilizes the 2.7 inch focuser previously used in the Sky-90 telescope.

    Optical Tube Assembly only (mount, tripod, tube holder and finder sold separately). 

    $1,790.00 USD
    Special Order


      Add to cart
  42. Takahashi America: Like the FS series, the FC series are apochromatic refractors with two-element fluorite lenses.  The FC series have larger apertures and longer focal lengths than the FS series, and provide outstanding performance both for the visual observer and the digital imager.  The FC series has its own dedicated set of reducers and flatteners, and is also able to use some of these accessories from the TOA series.

    FC-76D

    The two telescopes in the FC-76D series consists of an apochromatic fluorite doublet with a 76 mm objective diameter.  Both telescopes are 540 mm f/7.5 instruments.  The front element uses an eco-glass for maximum light transmission, with a coated fluorite rear element for superb color correction. 

    FC-76DCU

    The FC-76DCU model features a fixed dew shield and smaller, 80 mm diameter barrel for the same performance in a package featuring reduced weight and overall length.  It utilizes a 1.25 inch rack and pinion focuser.

    FC-76DS

    The FC-76DS model features a retractable dew shield and 95 mm diameter barrel.  The FC-76DC and DS are optically identical.  The DS model utilizes the 2.7 inch focuser previously used in the Sky-90 telescope.

    Optical Tube Assembly only (mount, tripod, tube holder and finder sold separately). 

    $1,430.00 USD
    Special Order


      Add to cart
  43. Takahashi America: The FOA-60 is a new compact apochromatic fluorite doublet refractor from Takahashi.  The telescope features a 60 mm aperture and a 530 mm focal length.  It is also available with a 1.7X extender, which increases the focal length to 901 mm.  The version with the 1.7X extender is known as the FOA-60Q.  

    The spacing of the doublet elements is such that the correction of the spherical abberations is similar to that found in the much larger TOA series.  This innovative design results in a Strehl ratio in excess of 96% for the base unit and over 99% with the extender.

      

    Compact design for relatively long focal length, making it ideal for transport
    Outstanding visual and photographic performance, providing a 44 mm diameter image circle for full frame imaging
    Available with a 1.7x extender and a 0.93x flattener
     

    Note:  FOA-60 Shown.  Mount, tripod, tube holder and finder not included.

    $1,350.00 USD
    Special Order


      Add to cart
  44. Takahashi America: The FOA-60 is a new compact apochromatic fluorite doublet refractor from Takahashi.  The telescope features a 60 mm aperture and a 530 mm focal length.  It is also available with a 1.7X extender, which increases the focal length to 901 mm.  The version with the 1.7X extender is known as the FOA-60Q.  

    The spacing of the doublet elements is such that the correction of the spherical abberations is similar to that found in the much larger TOA series.  This innovative design results in a Strehl ratio in excess of 96% for the base unit and over 99% with the extender.

    Compact design for relatively long focal length, making it ideal for transport
    Outstanding visual and photographic performance, providing a 44 mm diameter image circle for full frame imaging
    Available with a 1.7x extender and a 0.93x flattener
     

    Note:  FOA-60 Shown.  Mount, tripod, tube holder and finder not included.

    $1,930.00 USD
    Special Order


      Add to cart
  45. Takahashi America: The Takahashi FSQ-106EDX4 is a redesign of the popular FSQ-106 and is a superior flat-field super quadruplet refractor.  This redesigned version features a flat field advanced Petzval quadruplet design, with extra-low dispersion (ED) glass for super color correction in the UV, visible and IR wavelengths.  This optical design results in pin point star images and increased field illumination.  Designed from the ground up for digital imaging, this new 4 element / 4 group design is also capable of stunning visual performance.

    Some of the features of this outstanding design include:

    Completely new optics for digital imaging, featureing two premium ED elements for outstanding color correction
    An advanced Petzval design includes an almost full aperature G3 lens to ensure greater image illumination
    A flat field without the need for an additional flattener, across a large 88 mm image circle
    Generous 178 mm back focus allows the user to attach a variety of imaging cameras and accessories, 2 inch diagonals, and many other visual devices including bino viewers.
    A 4 inch, heavy duty focuser with a an included camera angle adjuster for precise rotation of CCD cameras
    An anti-torquing draw tube that uses a second rack located on the top of the tube and loaded with ball bearings to prevent any rotation when a heavy instrument package is attached.
    Airline portable, with a total length of less than 17 inches with the lens shade retracted
     Optical Tube Assembly only (mount, tripod, tube holder and finder sold separately). 

    $6,050.00 USD
    Special Order


      Add to cart
  46. Takahashi America: The FSQ series of telescopes were designed with the astro-imager in mind.  Featuring a four-element lens system made with superb ED glass, the FSQ produces a virtually flat field across a large image circle.  In models other than the FSQ series, the image circle is defined as the circle in which light intensity is 60% or greater.  However, because of the outstanding performance of the FSQ series, for these models the image circle is defined as the area where star images are 30 microns or less.  In all FSQ telescopes, the light intensity across the image circle is greater than 70%. 

     

    The FSQ-130ED is the latest addition to Takahashi’s FSQ line.  The FSQ-130ED is a fusion of features from the TOA and FSQ series.  The front elements mimic the TOA series, with three elements of ED glass that almost eliminate axial chromatic aberration and spherical aberration.  The rear elements come from the FSQ-106 design, thus eliminating astigmatism and chromatic aberration.

     

    Through its design, the amount of light reduction across the image circle is minimal.  Out to about 44 mm, the light intensity remains 97%.  Out to 64 mm, light intensity is still a remarkable 92%.  Even out to 110-mm, the light intensity is above 78%.  This light intensity reduces vignetting and keeps stars across the field pin-point.  At prime focus the FSQ-130ED produces a 110-mm image circle with an extremely flat field. 

     

    The FSQ-130ED has a 130-mm aperture in an f/5, 650 mm telescope.  The FSQ-130ED features a retractable dew shield, a 360-degree camera angle adjuster, and a heavy duty, 4-inch rack and pinion focuser.  The focuser comes standard with a 7:1 fine focuser reduction.  The draw tube features two racks, allowing heavy imaging trains to be used without flexure of the focusing mechanism.  The FSQ-130ED can be coupled with several reducers and extenders, including the F/3 Reducer 0.6X and the 645 “super reducer”.

     

    Optical Tube Assembly only (mount, tripod, tube holder and finder sold separately). 

    $16,360.00 USD
    Special Order


      Add to cart
  47. Takahashi America: This is the same telescope is the FSQ-85EDX, but includes the 1.01X flattener as part of the standard telescope assembly.  This is the same unit designated as FSQ-85EDP in Japan.
    The FSQ series of telescopes were designed with the astro-imager in mind.  Featuring a four-element lens system made with superb ED glass, the FSQ produces a virtually flat field across a large image circle.  In models other than the FSQ series, the image circle is defined as the circle in which light intensity is 60% or greater.  However, because of the outstanding performance of the FSQ series, for these models the image circle is defined as the area where star images are 30 microns or less.  In all FSQ telescopes, the light intensity across the image circle is greater than 70%. 

    The Takahashi FSQ85-ED is the most portable member of the FSQ Series of flat field astrogrpahs.  This refractor telescope was designed from the ground up for digital imaging, and is the go anywhere portable astrograph.  Easily airline transportable at 12.68" collapsed, the "Q" will fit under under an airline seat or in an overhead compartment.  It weighs less than 9 lbs, so a smaller high quaily mount will support it.

    The FSQ-85ED also features a newly designed focuser with a built-in fine focuser, made for imaging with medium format CCD cameras.  This 72 mm focuser has been designed to handle CCD and digital SLR cemeras with great rigidity.

    In addition to being a first rate astrograph, it has been designed to be an excellent visual instrument as well.  With over 200 mm of back focus, it can acommodate any combination of diagonals or a bino viewer.  Color correction from the near UV to the near IR insures tight stellar images across the entire color range.

    Optical Tube Assembly only (mount, tripod, tube holder and finder sold separately). 

    The FSQ-85ED is a perfect go anywhere imaging/visual astrograph.  Its outstanding features include:

    Premimum doublet extra-low dispersion (ED) quadruplet design
    44 mm diameter imaging circle, capable of accepting medium format CCD or DSLR cameras
    Large, heavy duty 72 mm diameter focuser capable of carrying medium format CCD or DSLR cameras
    Light weight, highly portable instrument perfect for use worldwide or in remote sites
    Built-in camera rotator allow the camera to be rotated 360° without loss of critical focus
    Uses a specifically designed Extender-ED 1.5x to increase focal length for high magnification viewing

    $3,860.00 USD
    Special Order


      Add to cart
  48. Get a FREE TOA 35 Flattener with the purchase of any TOA-130 or TOA-150 Optical Tube Assembly until December 31st 2019 (until quantities last)

    Takahashi America: The TOA series is a member of Takahashi’s line of triplet refractors.  In the TOA design, three lens elements are used, with the front and rear constructed from ED glass.  The resulting system achieves a high level of apochromatic performance for both visual observation and imaging.  Takahashi engineers have a undertaken a complete redesign of the triplet system, completely eliminating spherical aberration while minimizing axial chromatic aberration in the visible light spectrum.

    In typical apochromatic designs, the elimination of chromatic aberration is usually at the expense of increasing spherical aberration at various wavelengths.  However, with the TOA series, the focal shift across the entire visible spectrum from 436 nm up to 656 nm is less than +/- 0.01 mm.  This is less than 1/100 the aberration of a typical apochromatic design.

    TOA-150B

    The TOA-150B is a 150 mm apochromatic f/7.3 refractor with a focal length of 1100 mm.  It features a retractable lens hood, a 4 inch rack and pinion focuser with a 7:1 fine focuser, and a 360 degree camera angle adjuster.  A complete line of flatteners, reducers and extenders are available, including the 67-series flattener, which provides a 90 mm imaging circle. 

    A tube weight is standard to assist in balancing instrumentation or visual accessories.

    Optical tube only.  Mount and tripod sold separately.

    $12,980.00 USD
    Special Order


      Add to cart
  49. Get a FREE TOA 35 Flattener with the purchase of any TOA-130 or TOA-150 Optical Tube Assembly until December 31st 2019 (until quantities last)

    Takahashi America: The TOA series is a member of Takahashi’s line of triplet refractors.  In the TOA design, three lens elements are used, with the front and rear constructed from ED glass.  The resulting system achieves a high level of apochromatic performance for both visual observation and imaging.  Takahashi engineers have a undertaken a complete redesign of the triplet system, completely eliminating spherical aberration while minimizing axial chromatic aberration in the visible light spectrum.

    In typical apochromatic designs, the elimination of chromatic aberration is usually at the expense of increasing spherical aberration at various wavelengths.  However, with the TOA series, the focal shift across the entire visible spectrum from 436 nm up to 656 nm is less than +/- 0.01 mm.  This is less than 1/100 the aberration of a typical apochromatic design.

    TOA-130NS

    The TOA-130NS is a 130 mm apochromatic f/7.7 refractor with a focal length of 1000 mm.  It features a retractable lens hood and 2.7 inch rack and pinion focuser.  A complete line of flatteners, reducers and extenders are available, including the 67-series flattener, which provides a 90 mm imaging circle.

    Optical Tube Assembly only (mount, tripod, tube holder and finder sold separately).
     

    $6,310.00 USD
    Special Order


      Add to cart
  50. Get a FREE TOA 35 Flattener with the purchase of any TOA-130 or TOA-150 Optical Tube Assembly until December 31st 2019 (until quantities last)

    Takahashi America: The TOA series is a member of Takahashi’s line of triplet refractors.  In the TOA design, three lens elements are used, with the front and rear constructed from ED glass.  The resulting system achieves a high level of apochromatic performance for both visual observation and imaging.  Takahashi engineers have a undertaken a complete redesign of the triplet system, completely eliminating spherical aberration while minimizing axial chromatic aberration in the visible light spectrum.

    In typical apochromatic designs, the elimination of chromatic aberration is usually at the expense of increasing spherical aberration at various wavelengths.  However, with the TOA series, the focal shift across the entire visible spectrum from 436 nm up to 656 nm is less than +/- 0.01 mm.  This is less than 1/100 the aberration of a typical apochromatic design.

    TOA-130NFB

    The TOA-130NFB is a 130 mm apochromatic f/7.7 refractor with a focal length of 1000 mm.  It features a retractable lens hood, a 4 inch rack and pinion focuser with a 7:1 fine focuser, and a 360-degree camera angle adjuster.  A complete line of flatteners, reducers and extenders are available, including the 67-series flattener, which provides a 90 mm imaging circle. 

    Optical Tube Assembly only (mount, tripod, tube holder and finder sold separately).

    $7,000.00 USD
    Special Order


      Add to cart
  51. Takahashi America: The TSA series is a member of Takahashi’s line of triplet refractors.  In the TSA design, an ED glass lens is placed between two lenses, with air spacing in between.  The resulting system achieves a high level of apochromatic performance for both visual observation and imaging. 

    TSA-120

    The TSA-120 is a 120 mm apochromatic f/7.5 refractor with a focal length of 900 mm.  It features a retractable lens hood and a 2.7 inch rack and pinion focuser.  The TSA is compatible with several flatteners, reducers and extenders, including the TOA-35 Reducer, which converts the telescope to a f/5.3 imaging platform with a 44 mm image circle.

    Optical Tube Assembly only (mount, tripod, tube holder and finder sold separately).

    $4,440.00 USD
    Special Order

    1 in stock


      Add to cart
  52. Takahashi America: This Anniversary Edition will include an MEF Focuser, and this run will be limited to just 30 units worldwide.

    The TSA series is a member of Takahashi’s line of triplet refractors.  In the TSA design, an ED glass lens is placed between two lenses, with air spacing in between.  The resulting system achieves a high level of apochromatic performance for both visual observation and imaging. 

    TSA-120

    The TSA-120 is a 120 mm apochromatic f/7.5 refractor with a focal length of 900 mm.  It features a retractable lens hood and a 2.7 inch rack and pinion focuser.  The TSA is compatible with several flatteners, reducers and extenders, including the TOA-35 Reducer, which converts the telescope to a f/5.3 imaging platform with a 44 mm image circle.

    Optical Tube Assembly only (mount, tripod, tube holder and finder sold separately).

    $3,840.00 USD
    Special Order


      Add to cart
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