The Pentax 12.5 x 50 DCF SP binocular offers the highest magnification in its series. With 12.5x magnification and an impressive list of features, this binocular delivers the performance of higher-priced European models at a fraction of the cost. Perfect for a wide variety of applications such as close-up viewing and use in less-than-ideal weather conditions. Set your sights on Overstock.com for huge savings on high quality optics. Specifications: Binocular type: roof prism, center focusing (inner focusing) Objective lens: 4 elements in 3 groups Eyepiece lens: 5 elements in 3 groups (Hybrid aspherical lens)Coating: multi-coating and hydrophobic coating Magnification: 12.5x Objective lens diameter: 50mm Real field of view: 4.8 degrees Apparent field of view: 60 degrees Field of view at 1000 meters: 84m Field of view at 1000 yards: 252 ft. Exit pupil: 4.0mm Eye relief: 17mm Prism: roof Minimum focusing distance: 11.5 ft. Relative brightness: 16 Diopter adjustment range: +/- 4 m -1 Diopter adjustment: diopter ring with diopter lock Eye width adjustment range: 2.3 x 2.9 Waterproof: magnesium body, 1m depth of water (JIS Class 6), nitrogen filled This high-quality item has been factory reconditioned. Please click on the icon above for more information on quality factory-reconditioned merchandise.