Explore Scientific 82° AR 18mm 2" Eyepiece
Focal length: 18mm. Eyepiece clamp diameter: 2"
Product ID | 71087 |
Brand | Explore Scientific |
Warranty | 2 years |
EAN | 4007922199740 |
Shipping Weight | 0.378 kg |
Type | ultra wide-angle |
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.
Product ID | 71087 |
Brand | Explore Scientific |
Warranty | 2 years |
EAN | 4007922199740 |
Shipping Weight | 0.378 kg |
Type | ultra wide-angle |
Optical scheme | 6 elements in 4 groups |
Barrel diameter, in | 2 |
Lens coating | fully multi-coated |
Focal length, mm | 18 |
Field of view, ° | 82 |
Eye relief, mm | 13 |
Field stop diameter, mm | 25.3 |
Side edges blackening | ✓ |
Parfocal | ✓ |
Argon-purged | ✓ |
Waterproof | ✓ |
Eyecup | rubber, foldable |
Protective caps included | ✓ |