Four element Plossl optical designBlackened lens edgesMulti-layer coating group on each lensAnodized to prevent reflection from the top eyepiece barrel
Four element Plossl optical design Blackened lens edges Multi-layer coating group on each lens Anodized to prevent reflection from the top eyepiece barrel
Brand: Celestron, Model: 93317, Color: gray, Size: 1.25" 6 mm