Winchester Supreme Optics 12x50mm Roof Prism Binocular, Black/Gray

High quality BAK4 prisms with high density (HD) glass for brighter, clearer, and crisper detailed images from edge to edge, even in low light conditions. Fully multi-coated lenses throughout the optical system for increased light transmission, reduced glare, improved image quality and crisp edge to edge performance. Silver coated phase correcting prism lenses for higher light transmission, brighter images with increased contrast. Wide Band green objective and eyepiece lens coatings for excellent light transmission and reduced glare. High performance PPS thermoplastic chassis construction that balances light weight with rigid construction and rugged durability. Nitrile NBR / PVC protective rubber armoring that resists heat & oil, provides excellent shock absorption, provides a slip resistant grip, and has high abrasion resistance for long term use. Twist up eyecups for use with or without eyeglasses. Nitrogen filled and sealed optical system for fog, water, and dust proof performance. Knurled focus adjustment knobs for a secure grip.