The Vortex Diamondback HD 10x42 250th Anniversary Edition combines the proven performance of the Diamondback HD binoculars with a commemorative design celebrating 250 years of American independence. Built as a dependable field optic for hunters and outdoorsmen, this edition features a 250th Anniversary badge while retaining the optical and environmental performance of the Diamondback HD platform. The HD Optical System uses select glass elements to provide high resolution, improved color fidelity, edge-to-edge sharpness, and reduced chromatic aberration. Fully multi-coated lenses and dielectric prism coatings maximize light transmission and produce bright, clear images across a range of viewing conditions. A true open-hinge design reduces bulk while providing a comfortable grip, while adjustable eyecups accommodate users with or without eyeglasses. ArmorTek-coated exterior lenses resist scratches, oil, and dirt, and rubber armor provides additional protection and a secure, non-slip grip. Argon purging and O-ring sealing make the binoculars fogproof and waterproof for dependable use in changing weather conditions. The Diamondback HD 10x42 also includes an exclusive GlassPak binocular harness, comfort neck strap, tethered objective lens covers, rainguard eyepiece cover, and lens cloth. Specifications Model: Diamondback HD 10x42 250th Anniversary Edition Magnification: 10x Objective Lens Diameter: 42mm Eye Relief: 15.0mm Angular Field of View: 6.3Adeg Linear Field of View: 330 ft @ 1,000 yds Close Focus: 5.0 ft Interpupillary Distance: 55-73mm Height: 5.7 inches Width: 5.1 inches Weight: 21.3 oz Optical System: HD Optical System Lens Coatings: Fully Multi-Coated Prism Coatings: Dielectric, Phase Correction Exterior Lens Protection: ArmorTek Construction: Rubber Armor Purging: Argon Gas Weather Protection: Waterproof and Fogproof Shockproof: Yes Tripod Adaptable: Yes Included: GlassPak Binocular Harness, comfort neck strap, tethered objective lens covers, rainguard eyepiece lens cover, lens cloth Celebrate 250 years of American independence with the Vortex Diamondback HD 10x42 250th Anniversary Edition at BattleHawk Armory!