Ten power in the hands at 658g, the Vengeance ED 10x42 uses extra-low dispersion glass and BaK-4 roof prisms with phase and dielectric coatings to reach 88% light transmission, giving you sharp, true-color detail at distance. 15.1mm of eye relief behind twist-up eyecups keeps the view comfortable whether or not you wear glasses, and close focus down to 9.84 ft. (3m) brings nearby subjects into view just as easily. A center-focus system with +/-3 diopter adjustment dials in a fast, precise focus, and the rubber-armored, tripod-adaptable body is built for regular use in the field. 10x magnification with 42mm extra-low dispersion (ED) objectives for sharp, true color BaK-4 roof prisms with phase and dielectric coatings for 88% light transmission 15.1mm of eye relief behind twist-up eyecups for comfortable viewing with or without glasses Close focus down to 9.84 ft. (3m) for viewing nearby subjects Center focus system with +/-3 diopter adjustment for fast, precise focusing Rubber-armored housing at just 23.2 oz. (658g) for all-day carry Fully broadband multi-coated optics and tripod-adaptable design