A fully coated erect image diagonal for 1.25" eyepieces allowing fully corrected daytime views in astronomical telescopes. This diagonal is designed for comfort with a 45 degree angle, ideal for terrestrial targets which are virtually always lower than astronomical targets. Use this quality diagonal with any standard 1.25" eyepieces.
Please note this 45 degree diagonal will only work correctly with refractors and catadioptrics, not suitable for Newtonian reflector telescopes.