German Precision Optics GPO PASSION HD 10x50 Hunting Binocular B660, Color: Charcoal/Black, Prism System: Schmidt-Pechan PASSION™ HD binoculars are the flagship products of GPO. They are built to the highest optical standards, with incredible low-light optical benefits. Users can see exceptionally fine detail from extreme distances while enjoying excellent color contrast images. This visual quality can only be made possible using GPO's proprietary GPObright™ lens coating technology. PASSION™ HDs have wide-angle field of view, making users feel as if they are part of the spectra they are viewing. They are exceptionally lightweight and compact, making them feel nearly invisible around the user's neck. Incredible light transmission, 99.7% ags Double HD glass technology GPObright™ lens coating technology Center focusing locking diopter Tough aluminum eyecup tubes Magnesium micro-bridge and body Waterproof and fogproof Ultra eye relief Ultra lightweight at 33.9oz PASSIONdrop™ hydrophobic coating Specifications for German Precision Optics GPO PASSION HD 10x50 Hunting Binocular: Color: Charcoal/Black Magnification: 10 x Objective Lens Diameter: 50 mm Prism System: Schmidt-Pechan Eye Relief: 0.77 in Exit pupil: 5 mm Field of View, Linear: 309 ft at 1000 yds Optical Coating: GPObright Binoculars Focus System: Center Focus Close Focus: 3 m Diopter Adjustment Range: -4 - 4 dpt Water Resistance Level: Waterproof Weight: 33.9 oz Included Accessories: Objective Cover, Ocular Cover, Neoprene strap, Cleaning Cloth, Hard Case Size: 2.5H x 6.9L x 5.3W in Fogproof: Yes