German Precision Optics RangeGuide 8x40mm Rangerfinder Binoculars Black. 25 seconds. The 8x will perform slightly better in low light compared to the 10x creating a full 5mm exit pupil beam of light for your eyes. A compact marvel delivering unmatched precision through its 40mm objective lens and cutting-edge rangefinding technology. Specifications for German Precision Optics RangeGuide 8x40mm Rangerfinder Binoculars: Manufacturer: German Precision Optics Magnification: 8 x Objective Lens Diameter: 40 mm Color: Black Range Response Time: 0.25 seconds Battery Type: Lithium Metal CR2 Weight: 25 oz Width: 5 in Length: 5.6 in Diopter Adjustment Range: -4 - 4 dpt Eye Relief: 17 mm Field of View Linear: 375 ft at 1000 yds Exit Pupil: 5 mm Interpupillary Distance: 57 - 78 mm Height: 2.3 in Caliber: 7.62x40mm Wilson Tactical Close Focus: 16 ft Package Type: Box Features of German Precision Optics RangeGuide 8x40mm Binocular Rangefinder Magnesium body and rubber armor coating True-range angle technology Scan mode that provides three readings per second Temperature readings for long-range shooting OLED display with nine brightness settings Auto display brightness feature Double HD glass technology GPObright lens coating technology Waterproof and fog proof PASSIONdrop hydrophobic coating Humidity and barometric pressure readings Package Contents: German Precision Optics RangeGuide 8x40mm Binocular Rangefinder Neoprene neck strap Microfiber cleaning cloth Ocular and objective lens covers Hard case CR-2 Battery GPO Spectacular Lifetime Warranty Lifetime Warranty Fully transferable No warranty card registration required No proof of purchase required German Precision Optics BX730: RangeGuide 8x40mm Rangerfinder Binoculars Black