Celestron 1.25" Star Diagonal The Celestron Star Diagonal fits telescopes with 1.25” focusers or visual backs, 90º viewing angle, best for observing objects overhead Accepts standard 1.25” eyepieces, Barlow lenses, and other accessories with a 1.25” insert barrel The Celestron 1.25” Star Diagonal slides into the focuser (1.25” barrel) of your refractor or catadioptric telescope and accepts standard 1.25” eyepieces, allowing you to view objects more comfortably. A diagonal that is angled at 90º helps avoid neck strain when looking through your eyepiece. This 1.25" Star Diagonal by Celestron will be a valuable asset for your telescope and make your hobby more enjoyable, especially when you are looking at celestrial objects which are high in the sky. Please note that a 90º diagonal will display images that are right side up, but left to right orientation will be reversed.
