VORTEX 250TH ANNIVERSARY DIAMONDBACKA(R) HD 10X42MM BINOCULAR Made for hunters who demand hard-working, reliable optics, the DiamondbackA(R) HD delivers sharp resolution, enhanced contrast, and rugged durability. Lightweight yet tough enough to go the distance, it's a strong lineup designed to handle any kind of hunt. A true workhorse, DiamondbackA(R) HD gives you the clarity, utility, and trust you need to consistently punch more tags. SPECS Magnification x Objective Lens Diameter: 10x42 Linear Field of View (@1000 yards): 330' Angular Field of View: 6.3Adeg Close Focus: 5.0' Eye Relief: 15.0 mm Interpupillary Distance: 55&n Mfg: Vortex Optics