Designed for Opticron's 60mm and 70mm IS R spotting scopes, the HR3 Zoom Eyepiece delivers 16-48x on the 60mm model and 18-54x on the 70mm version. 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.
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