Bushnell H2O Porro Prism 8x26 Waterproof/Fogproof Compact Binocular Compact, totally waterproof binoculars are O-ring sealed and nitrogen-purged for total water and fog protection Rubber armoring with textured pads give solid grip in slippery situations; multi-coated optics and premium BaK-4 prism glass maximize light transmission and image clarity Large center focus knob provides precise tension for accurate adjustments; twist-up eyecups 8X magnification and 26-millimeter objective lens; 8.5-foot close focus and 367-foot field of view at 1,000 yards; 15-millimeter eye relief and 3.25-millimeter exit pupil; 13.6-ounce weight Includes limited two-year manufacturer's warranty