For those who know unforgettable moments don&&';;t happen by chance, RazorA(R) UHD stands at the peak of the VortexA(R) optics technology-delivering the unmatched clarity and low-light performance once-in-a-lifetime hunts demand. Rugged construction. Smooth ergonomic controls. Spectacular glass that delivers superior brightness and all- around image quality. From dense, river-bottom bucks, to rams above the timberline, early dawn to the depths of dusk-RazorA(R) UHD reveals opportunity otherwise hidden in shadow, giving you incredible viewing power every thrilling second of shooting light. Specifications Magnification 18x Objective Lens Diameter 56 mm Linear Field of View 194&'; Angular Field of View 3.7Adeg Eye Relief 18.0mm Height 8.3" Width 6.1" Weight 41.6 oz. Interpupillary Distance 56mm - 76mm Close Focus 10&';