Olympic 8x42mm Black Bino Description
These premium quality 8x42mm Center focus, phase coated roof prism binoculars offer you a bright, clear sight picture, twist-up eyecups and long eye relief for easy use with glasses. Rain Shed helps ensure clarity, even when wet, through hard rains. Even total submersion won't affect the interior workings of your rugged, totally waterproof Olympic series binoculars.

Wind River features:
• Multi-coated internal and external lenses to optimize beneficial light while reducing glare and harmful UV light
• Top-quality optics for superior light transmission even at dusk
• BaK-4/Bk-7 optimized prism systems
• Easy-to-use center focus mechanism
• Custom-fit neoprene case and padded neoprene neck strap included
• Bright, crisp sight picture allows you to study even small details at a distance
• 100% waterproof construction. Dry nitrogen filled and sealed to handle the most adverse weather conditions
• Long eye relief prevents fatigue during extended use
• Rugged, shock-absorbing rubber armor protects against bumps and nicks
• Adjustable eyecups for use with glasses

Specifications:
- Actual Magnification: 8x
- Linear Field of View (feet at 100 yards): 32.5
- Linear Field of View (meters at 100 meters): 10.8
- Angular Field of View (degrees): 6.2
- Weight (ounces): 21.8
- Weight (grams): 619
- Length (inches): 5.7
- Length (cm): 14.6
- Objective Aperture (mm): 42
- Twilight Factor: 18.3
- Exit Pupil (mm): 5.3
- Eye Relief (mm): 18
- Interpupillary Distance: 60-70
- Close Focus Distance (feet): 7.5
- Close Focus Distance (meters): 2.3