Made for hunters who demand hard-working, reliable optics, the Diamondback 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, Diamondback HD gives you the clarity, utility, and trust you need to consistently punch more tags.Specifications and Features: Magnification: 15x Objective Lens Diameter: 56 mm Eye Relief: 15.6mm Angular Field of View: 4.4deg Close Focus: 14.0' Interpupillary Distance: 59mm - 76mm Linear Field of View: 230' at 1000 yds Height: 7.1" Width: 5.8" Weight: 34.8 oz.