Celestron 4/6/9/12/15/32/40mm Omni Plossl Eyepiece 1.25" for Astronomy Telescope

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, unlike most other manufactures who use reflective surfaces.