Diamondback HD 15X56 Binoculars The Diamondback® HD smashes the scale of price vs performance, delivering a rock-solid optic that optically punches high above its class. OPTICAL FEATURES Fully Multi-Coated Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces. Phase Correction Coating on roof prism models enhances resolution and contrast. CONSTRUCTION FEATURES Roof Prism Valued for greater durability and a more compact size. Waterproof O-ring seals prevent moisture, dust and debris from penetrating the binocular for reliable performance in all environments. Fogproof Argon gas purging prevents internal fogging over a wide range of temperatures. Rubber Armor Provides a secure, non-slip grip, and durable external protection. CONVENIENCE FEATURES 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. Tripod Adaptable Compatible with a tripod adapter, allowing use on a tripod or car window mount. Magnification 15 x Objective Lens Diameter 56 mm Eye Relief 15.6 mm Exit Pupil 3.7 mm Linear Field of View 230 feet/1000 yards Angular Field of View 4.36 degrees Close Focus 14 feet Interpupillary Distance 59-76 mm Height 7.1 inches Width 5.8 inches Weight 34.8 ounces
