The XW 20 eyepiece is designed for use with a wide range of PENTAX spotting scopes and telescopes. Ideal for both ground and astronomical observations, this eyepiece features fully multi-coated lenses to increase light transmission and color quality, high-refraction lanthanum glass elements for high-resolution images with minimal aberrations, and JIS Class 4 weatherproof construction for durability. Engineered using advanced computer simulation design technology, this high-performance eyepiece provides a 70 degree field of view and 20mm eye relief.
Specifications:
| Lens Structure: | 6 elements, 4 groups |
| Focal Length: | 20mm |
| Apparent Field of View: | 70 degrees |
| Eye Relief: | 20mm |
| Attachment Diameter: | 1.25" (31.7mm) |
| Filter Diameter: | 28.6mm |
| Field Stop Diameter: | 24mm |
| Eyepiece Ring: | Helicoid type |
| Height & Width: | 3.8" x 2.4" |
| Weight: | 12.6 oz. (355g) |
ALTERNATIVE PRODUCTS
