Check the listing for details. Vortex Raptor 8.5×32 Porro Prism Binocular R385. Condition: New. Listed at 99.00 USD. Porro prism performance in a mid-size, wide-angle design, Raptor binoculars offer bright, crisp images with excellent color fidelity, even in low-light conditions. The design accommodates a wide range of interpupillary distances to fit everyone in the family. Features Fully Multi-Coated Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces. Porro Prism Valued for a rich depth of field, wide field of view, and three-dimensional image. Waterproof O-ring seals prevent moisture, dust and debris from penetrating the binocular for reliable performance in all environments. Fogproof Nitrogen gas purging prevents internal fogging over a wide range of temperatures. Rubber Armor Provides a secure, non-slip grip, and durable external protection. Adjustable Eyecups Twist up and down for comfortable viewing with or without eyeglasses. Center Focus Wheel Adjusts the focus of both binocular barrels at the same time. Diopter Adjusts for differences in a user's eyes. Located on right eyepiece. Specifications Magnification 8.5x Objective Lens Diameter 32 mm Eye Relief 14 mm Exit Pupil 3.8 mm Linear Field of View 390 feet/1000 yards Angular Field of View 7.4 degrees Close Focus 15 feet Interpupillary Distance 50-70 mm Height 4.5 inches Width 5.7 inches Weight 17.3 oz