Nikon 8x25 ProStaff ATB Binoculars (Black)

An ideal companion for general-purpose glassing on the trail - at the stadium - or around town - the Nikon 8x25 ProStaff ATB Binoculars are equipped with space-saving BAK4 reverse-Porro prisms - a multi-coated optical path - and aspherical eyepiece lenses These features work together to produce clear and crisp high-contrast views with accurate color rendition Nikon's proprietary Eco-Glass optics are made of environmentally friendly lenses and prisms that don't contain lead or arsenic Complementing the image quality - the optical tubes are nitrogen filled and O-ring sealed to be waterproof and resistant to internal fogging - and the housing is wrapped in a textured rubber armor that provides a slip-resistant grip&mdashespecially in cold or wet weather Weighing in at just 125 ounces and measuring a mere 45 inches long - the ProStaff ATB can easily fit in most packs - pockets - or purses without adding excessive bulk to slow you down

Features: Lightweight: 12.5 Ounces, Twist-Up Rubber Eyecups, Aspherical Eyepiece Lenses, Lead- and Arsenic-Free Eco-Glass, BAK4 Reverse-Porro Prisms, Anti-Reflection Multi-Coated Optics, Nitrogen Filled, Water and Fogproof, Rubber-Armored Housing

Prism Type: Porro

Magnification: 8x

Objective Lens Diameter: 25 mm

Angle of View: 6.3 degrees (Actual)

Field of View: 330' @ 1000 yd / 109.6 m @ 1000 m

Minimum Focus Distance: 9.2' / 2.8 m

Exit Pupil Diameter: 3.1 mm

Eye Relief: 15.5 mm

Interpupillary Adjustment: 5.6 to 7.2 cm / 2.2 to 2.8-inch

Diopter Adjustment: Yes

Focus Type: Center

Fogproof: Yes - Nitrogen Filled

Environmental Resistance: Water-Resistant (Unrated)

Dimensions: 4.5 x 3.9-inch / 11.4 x 9.9 cm

Weight: 12.5 oz / 354.4 g