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Explore Scientific 68° Series 40mm - 2'' [ES-EPWP6840-01]

ES-EPWP6840-01
$389.99 USD
0 in stock
Explore Scientific: Scientific eyepiece, 40 mm focal length, visible field of 68 °, 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 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 40 mm predestines it at very low magnifications (25x on an optical tube of 1 meter of focal length), making it very suitable for observing large nebulae, large galaxies or Clusters of galaxies, comets or large open clusters, while benefiting from a very large field of vision.
The 40 mm eye relief is 31 mm: this means that the image remains comfortable up to a distance of 31 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.
 

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About Explore Scientific 68° Series 40mm - 2'' [ES-EPWP6840-01]

Explore Scientific: Scientific eyepiece, 40 mm focal length, visible field of 68 °, 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 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 40 mm predestines it at very low magnifications (25x on an optical tube of 1 meter of focal length), making it very suitable for observing large nebulae, large galaxies or Clusters of galaxies, comets or large open clusters, while benefiting from a very large field of vision.

The 40 mm eye relief is 31 mm: this means that the image remains comfortable up to a distance of 31 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.
 

  • Description    40mm 68° Series Argon-Purged Waterproof Eyepiece
  • Item Number    EPWP6840-01
  • Focal Length    40mm
  • Length    114.2mm
  • Width    80.3mm
  • Weight    35.2oz; 998g
  • Barrel Size    2.00”
  • Eye Relief    31mm
  • Field Stop Diameter:    45.5mm

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