Celestron OMNI Series 1.25in Eyepiece 32mm Focal Length 22mm Eye Relief. Celestron designed this series with the finer points in mind so you the user can benefit from the features that make this series unique. The Omni is a 4 -element premium symmetrical Plossl 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 eyepiece goes through a two-step anodizing process to prevent reflection from the top eyepiece barrel. Threaded barrels accept 1-1/4" Celestron thread-in filters. Specifications for Celestron's Telescopes Eyepieces OMNI Series: Omni Series model # : Focal Length Eye Relief Apparent Field Size 93316: 4mm 6mm 52 1-1/4" 93317: 6mm 5mm 52 1-1/4" 93318: 9mm 6mm 52 1-1/4" 93319: 12mm 8mm 52 1-1/4" 93320: 15mm 13mm 52 1-1/4" 93323: 32mm 22mm 52 1-1/4" 93325: 40mm 31mm 43 1-1/4" Package Contents: Celestron Telescopes Eyepiece OMNI Series Front & Rear Lenscaps Specifications for Celestron Telescopes Eyepieces OMNI Series: Manufacturer: Celestron Eyepiece Lens Diameter: 31 mm
