NOTICE: PRICE IS FOR ONE EYEPICE, PLEASE SELECT THEM ACCORDING TO YOUR NEEDS,THANKS ! OVERVIEW Omni eyepieces offer a quality 4-element Plossl optical design at a super affordable price. Rubber eyecups provide comfort and increase contrast. Leave them up or fold them down when wearing eyeglasses. Beautiful matte aluminum barrels and blackened lens edges prevent internal reflections. 1.25 inchbarrels are threaded to accept filters. DESCRIPTION Celestron Omni series eyepieces offer a 50o apparent field of view, perfect for the Moon, planets, and a plethora of deep-sky objects. The premium four-element optical set is finished with multiple layers of high-transmission coatings for clear, sharp images. The edges of the optics are blackened for increased contrast. The Omni eyepiece body is made of aluminum. A two-step anodizing process results in a beautiful matte finish that resists reflections and glare. Each eyepiece in the Omni Series includes a black rubber eyecup. It can be left up or folded down for better observations while wearing eyeglasses. Models with a longer barrel (15 mm, 32 mm, 40 mm) include a rubberized grip for non-slip handling during observing sessions. The insert barrel is threaded to accept 1.25 inchfilters. Celestron Omni eyepieces are also available in the following focal lengths in a 1.25 inchformat: 6 mm, 9 mm, 12 mm, 15 mm, 20 mm, 25 mm, 40 mm,Please check the link to buy them.. 2-Year Warranty For two years, Celestron will cover repairs or replacement of this product in cases of defective components. This warranty shall be void and of no force of effect in the event a covered product has been modified in design or function, or subjected to abuse, misuse, mishandling or unauthorized repair. Further, product malfunction or deterioration due to normal wear is not covered by this warranty. SPECIFICATIONS Focal Length:4 mm (0.16 in) Apparent Field of View:50 anddeg; Eye Relief (mm):6 mm (0.24 in) Number of Lens Elements:4 Barrel Size (in):1.25 in (32 mm) SPECIFICATIONS Focal Length:6 mm (0.24 in) Apparent Field of View:50 anddeg; Eye Relief (mm):5 mm (0.2 in) Number of Lens Elements:4 Barrel Size:(in)1.25 in (32 mm) SPECIFICATIONS Focal Length:9 mm (0.35 in) Apparent Field of View:50 anddeg; Eye Relief (mm):6 mm (0.24 in) Number of Lens Elements:4 Barrel Size (in):1.25 in (32 mm) SPECIFICATIONS Focal Length12 mm (0.49 in) Apparent Field of View50 anddeg; Eye Relief (mm)8 mm (0.31 in) Number of Lens Elements4 Barrel Size (in)1.25 in (32 mm) SPECIFICATIONS Focal Length:15 mm (0.59 in) Apparent Field of View:50 anddeg; Eye Relief (mm):13 mm (0.51 in) Number of Lens Elements:4 Barrel Size (in):1.25 in (32 mm) SPECIFICATIONS Focal Length:32 mm (0.16 in) Apparent Field of View:52 anddeg; Eye Relief (mm):22 mm (0.24 in) Number of Lens Elements:4 Barrel Size (in):1.25 in (32 mm) SPECIFICATIONS Focal Length:40 mm (1.57 in) Apparent Field of View:43 anddeg; Eye Relief (mm):31 mm (1.22 in) Number of Lens Elements:4 Barrel Size (in):1.25 in (32 mm) 1. We accept alipay here. please make Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.