Pentax XW Eyepieces
With unsurpassed optical clarity and offering a 70 degree field of view of comfortable viewing, Pentax offers a wide selection of focal lengths with the Pentax XW eyepieces. They feature 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 eyepiece also offer an unsurpassed 20mm of eye relief. Designed for use with a wide range of telescopes and Pentax brand spotting scopes, the Pentax XW series eyepieces are a clear choice for ground and astronomical applications.