Description Glassing out west demands an HD optic, but other systems can't get you the clarity you need to see a tail twitch in low light, or pick a tine out of dense cover. The redesigned Diamondback HD spotting scopes have all the horsepower the long-distance hunter needs, and they excel in lowlightâright when you need it most. We've also streamlined the exterior for a sleeker, snag-free profile, building in a helical focus wheel.PRODUCT DETAILMagnification 20-60x Objective Lens Diameter 85 mm Linear Field of View 108-60 ft/1000 yds Angular Field of View 2.1-1.1 degrees Close Focus 24.6 feet Eye Relief 20.3-18.3 mm Exit Pupil 4.25?1.41 mm Length 16 inches Weight 60.9 oz