Designed for use with PENTAX PF 80 Series Spotting Scopes, provides 20x-60x magnification when used with them. May also be used on other PENTAX PF Series spotting scopes (except PF-63 Spotting Scope) or with astronomical telescopes with 1 1/4" focuser.

The smc Zoom eyepiece features a magnification range of 20-60X, an apparent field of view of 38 to 60 degrees, and an eye relief of 20mm. Like all PENTAX eyepieces, it is renowned for its outstanding image reproduction. With its JIS Class 6 rated waterproof and fog proof construction, this Zoom eyepiece is ideal for use with astronomical telescopes.

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