The 6.5 mm to 19.5 mm XF Pentax Series 1.25" Zoom Eyepiece  features a focal-length range of 6.5 mm to 19.5 mm, with an apparent 42 to 60 degree field-of-view and an eye relief of 11 to 15 mm. It also offers a user-friendly rubber eyepiece ring to minimize the risk of scratching the observers eyeglasses.

Compatible with the following: PF-65 and PF-65 ED II series spotting scopes, PF-80 series spotting scopes, PF-100 series spotting scopes.

Pentax 6.5 mm to 19.5 mm XF Series 1.25" Zoom Eyepiece Features:

• Designed for use with Pentax PF 65 Series Spotting Scopes, provides 20x to 60x magnification when used with them. May also be used on other PENTAX PF Series spotting scopes (except PF-63 Spotting Scope)
• 42 to 60 degree apparent field-of-view
• Rubber eyepiece ring designed for viewing comfort
• Pentax SMC full-surface multi-layer coated optics reduce glare while providing maximum light transmission and color quality
• High-refraction, low dispersion lanthanum glass to provide high resolution images with minimal aberrations
• Advanced computer simulation design technology to reduce internal reflections, producing brighter, clearer images.
• Weatherproof construction for greater durability.

Pentax Product Number: XFZOOM