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EXPLORE SCIENTIFIC 82° Ar Eyepiece 18mm (2")

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FAQ - Frequently Asked Questions

That is normal. Finder scopes are only used to make objects easy to locate. The image orientation does not matter for observation.

  • Alt-azimuth: easy to use, moves horizontally and vertically
  • Equatorial: enables precise tracking of objects with only one axis – ideal for high magnifications and astrophotography

  • Moon: from 30 mm
  • Planets: from 100 mm
  • Deep sky: from 150 mm
Are you a member of an astronomy club? Find out here what your benefits are.
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Product information "EXPLORE SCIENTIFIC 82° Ar Eyepiece 18mm (2")"

Explore Scientific 82° Series™ extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics.

The visual effect of these eyepieces with their long eye-relief and their 82° apparent field is truly a full-immersion experience. Your eye is relaxed, allowing you to easily use the "averted vision" technique to study faint details across a huge field-of-view. The 82° Series eyepieces come with a twist-up rubber eye-guard that raise to the desired height for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope. To keep internal reflections to a minimum, all internal surfaces of the eyepiece barrel are flat black, as well as the edges of the lenses themselves to minimize the scattering of light within the lenses themselves.

All 82° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
Apparent field of view (degrees): 82
Batteries required: false
Colour: black
Extended warranty (years): 10
Eyecups: Rubber eyecups, foldable
Eyepiece Barrel Diameter (mm): 50.8
Focal length (mm): 18
Length of the eyepiece barrel (mm): 28
Lenses/Groups [Eyepiece]: 6/4
Material: Stainless steel
Net weight (without access.) (g): 395
Waterproof 8): true
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