Celestron 45° Prism for 1.25" Eyepieces

This 45-degree viewing angle image erecting diagonal is designed to use 1.25" eyepieces in catadioptric scopes with a 1.25" visual back or in refractors with a 1.25" focuser drawtube. It is not usable with reflectors. It increases the magnification by approximately 8%. Two brass thumbscrews hold eyepieces firmly in place. It is fully coated for high light transmission.