The PENTAX XW 20 Eyepiece offers a focal length of 20mm and provides a wide field of view when used with PENTAX spotting scopes or with telescopes.
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.
Additional Specifications:
- Lens Structure: 6 elements, 4 groups
- Focal Length: 20mm
- Apparent Field of View: 70 degrees
- Attachment Diameter: 1.25" (31.7mm)
- Filter Diameter: 28.6mm
- Field Stop Diameter: 24.0mm
- Eyepiece Ring: Helicoid type
- Height & Width: 3.4" x 2.4"
What's in The Box:
- XW-20 (1-1/4" dia.) Eyepiece
- Lens Cap
- Tube Cap