The Cascade Series binoculars feature an in-line design that makes them trim, lightweight, and easy to grip in wet conditions. One of the greatest values in current binoculars, offering high-end features and a lifetime of rugged durability in an affordable package. They are outstanding low-light performers. The multi-coated lens system ensures maximum brightness for clarity, contrast, and color fidelity. Slim, in-line design is ergonomic and easy to grip in all weather conditions. Generous eye relief for comfortable extended viewing, even with eyeglasses. Close focus distance of 10 feet. Center focus, dial-mounted lockable diopter secures your diopter setting against accidental shifts. Rugged, waterproof, and covered by the Leupold Limited Lifetime Warranty.