The Nikon (R) 8x25 Trailblazer ATB Binoculars fuse top-end optical performance with ruggedness. These binoculars feature bright, multi-coated optics, a rubber-armored body for durability and turn-and-slide eyecups for clear and comfortable viewing. They are also nitrogen filled and o-ring sealed to make the binoculars waterproof and fogproof while under extreme conditions. FEATURES: Bright, multi-coated optics Rubber-armored body Turn-and-slide eyecups Nitrogen filled and o-ring sealed Waterproof and fogproof SPECS: Finish: Black Focusing system: CF Magnification: x8 Objective diameter: 25 mm Angular field of view: 8.2 Real/degree Angular field of view: 59.7 Apparent/degree Field of view at 1000 yds: 429 ft Close focus distance: 8.2 ft Exit pupil: 3.1 mm Relative brightness: 9.6 Eye relief: 10 mm Size: 4.1" Long x 4.5" Wide Weight: 9.9 oz