Zeiss Victory SF 8x42mm Schmidt-Pechan Prism Binoculars Black Medium NSN 9005.10.0040. With these Binoculars by Zeiss you get a light transmission rate of 92percent plus an exit pupil over 5mm which gives you a brilliant picture even in low light conditions. The Zeiss Victory SF 8x42 Wildlife Observation Binoculars also utilize an Ergo-Balance concept which shifts the center of gravity making them feel significantly lighter. This allows for hours up hours of nature watching without getting tired or putting too much strain on your neck and shoulders. Like always Zeiss crafts some of the best optics around - giving you an incredibly durable pair of binoculars that are impossibly lightweight. Enjoy your unparalleled wide-angle field of view paired with multiple fluoride lenses to make the most out of your birdwatching experience. Pick up your pair of Zeiss Victory SF 8x42 Waterproof Binoculars and experience nature like a true professional. Specifications for Zeiss Victory SF 8x42mm Schmidt-Pechan Prism Binoculars: Manufacturer: Zeiss Color: Black Magnification: 8 x Objective Lens Diameter: 42 mm Prism System: Schmidt-Pechan Prism Material: BAK4 Image Stabilizer: No Eye Relief: 18 mm Exit Pupil: 5.3 mm Field of View Linear: 148 m at 1000 m 420 ft at 1000 yds Field of View Angle: 64 degrees Optical Coating: ZEISS T Multi-Layer Coating Customized to Each Lens Binoculars Focus System: Center Focus Twilight Factor: 18.3 Interpupillary Distance: 55 - 76 mm Close Focus: 5 ft Diopter Adjustment Range: -4 - 4 dpt Weather Resistance: Fog Resistant Water Resistant Mark: 400 bars 0.4 bars Water Resistance Level: Waterproof Length: 6.8 in Weight: 776 g Finish: Black Fabric/Material: Polycarbonate Condition: New Package Type: Box Magnification Type: Fixed Size: 6.8x4.9 in Features of Zeiss Victory SF 10x42 Binocular: Newly developed Ultra-FL lens Extremely large wide-angle field of view ErgoBalance Concept: Lightweight materials and a unique high-traction armor for ergonomic comfort that is truly unparalleled Package Contents: Zeiss Victory SF 8x42mm Schmidt-Pechan Prism Binoculars Eyepiece Cap Protective Lens Cap Carrying strap Magnetized Premium Carrying Case Lens Cleaning Cloth Instructions Warranty Card Quality Certificate Zeiss 524223-0000-000: Victory SF 8x42mm Schmidt-Pechan Prism Binoculars Black Medium NSN 9005.10.0040