The Alpen Outdoor 10x52 Magnaview Porro Prism Binocular offers durable and comfortable optics for the avid sportsman. Backed by Alpen's lifetime warranty, you can be confident you are receiving a quality product. Includes carrying case, neck strap, and eyepiece rain guards. 10x Magnification; 52mm Objective Lens Diameter; Center Focus System; Porro Prism Type; 342 F.O.V.; 5.2mm Exit Pupil; 13mm Eye Relief.