Vanguard 10x42 Waterproof Binocular Lightweight composite binocular weighs only 22.6 ounces Nitrogen purged O-ring seal provides 100% water and fog protection Bak4 prisms and fully multi-coated lenses for sharp contrast and increased light transmission Emerald coating provides greater contrast and natural color reproduction. 10 power, 42 mm objective lenses. View angle: 5.8. Field of view 304 ft/1000 yards. Eye relief 17mm. Near focus 9.2 ft. Size: 5 7/8" x 5 1/8".