Bright multicoated lenses and BaK4 high index prisms: Deliver bright high-resolution images. - Smooth central focus knob: Fast range of focus for quick viewing. No bird goes unseen. - Ergonomic body design: Comfortable for extended viewing. - Waterproof/fogproof: Nitrogen filled and O-ring sealed. - Long eye relief: For a clear and comfortable view especially for people who wear eyeglasses. - Unique click-stop twist-out eyecup design: Delivers both long eye relief and variable eye relief to customize these binoculars to your eyes and accommodate glasses. - Durable and protective rubber-armored coating: Provides a sure non-slip grip wet or dry. - Focusing System: Central Focus - Magnification: 7 x - Objective Diameter: 50 mm - Angular Field of View (Real): 6.4 - Angular Field of View (Apparent): 42.7 - FOV at 1000 yds: 335 ft - Close Focus Distance: 23 ft - Exit Pupil: 7.1 mm - Relative Brightness: 50.4 - Eye Relief: 17.1 mm - Size (Length x Width): 7 x 7.7 in - Weight: 35.3 oz - Interpupilary Distance: 56 -72 mm - Prism: Porro
Determined at checkout.