Opticron HR3 Zoom Eyepiece for IS R Spotting Scopes

Designed for Opticron's 60mm, 70mm, and 80mm spotting scopes, the HR3 Zoom Eyepiece delivers 16-48x on the 60mm model, 18-54x on the 70mm version, and 20-60x on the 80mm scope. To limit eye strain long-duration observation sessions, it maintains a long and comfortable eye relief through the zoom range, starting at 20mm at low magnification and moving to 16mm at high power. It features anti-reflection fully multi-coated optics to complement those used on the spotting scopes, and a twist-up rubber eyecup allows for comfortable use with or without eyewear.