Celestron Omni EyepiecesCelestron's Omni Eyepieces use a 4 -element premium symmetrical Plössl optical design. Features include blackened lens edges to minimize internal reflection and maximize contrast, multi-layer coating group on each lens surface to maximize light transmission and contrast, and each Omni goes through a two-step anodizing process to prevent reflection from the top eyepiece barrel. Threaded barrels accept 1-1/4" thread-in filters. An inexpensive eyepiece series designed to give better-than-average performance. |