Diopter Adjustment For Precise Focus Binocular

Fully coated optics and BK7 prisms. Protective rubber covering. Ultra compact design with folding center bridge. Diopter adjustment for precise focusing. Water resistant body and nylon carrying case. No fault lifetime warranty 10 x 25 - 5.5° angular field of view, 288' linear FOV, 2.5 mm exit pupil, 10 mm eye relief, 18' near focus. 8 x 21 - 7° angular field of view, 367 ft. linear FOV, 2.6 mm exit pupil, 11 mm eye relief, 7 ft. near focus. Weight: 9 oz. (10 x 25), 6 oz (8 x 21).