Bushnell 10X42 H2O Waterproof Black Roof Prism

Powerful bright optics in a 100% waterproof package. BaK-4 prisms for bright, clear, crisp viewing Multi-coated optics for superior light transmission 100% waterproof: O-ring sealed and nitrogen purged for reliable, fog-free performance Non-slip rubber armor absorbs shock while providing a firm grip Twist-up eyecups Large center-focus knob for easy adjustments Longer eye relief Specs for 10x 42mm 150142 Magnification X Obj Lens:10x 42mm Close Focus (ft/m):12 / 3.6 Lens Coating:Multi Field of View ft@1000yds / m@ 1000m:305 / 102 Adapt to Tripod:No Eyecups:Twist-Up Eye Relief:17 Focus System:Center Exit Pupil (mm):4.2 Prism Glass:BaK-4 Water/Fog Proof:Yes Prism System:Roof Weight (oz/g):25 / 709 Size Class:Standard