The Weems PRO 7x50 binoculars are loaded with features for discriminating professional sailors and mariners. Built to exceed military specifications for superior optical performance and durability, they show their true worth by providing high resolution and brightness at dusk and dawn. Featuring flat field lenses that result in excellent edge-to-edge sharpness and optimal eye relief, these exceptional binoculars provide superb image quality, even when wearing glasses. Their tough rubber-armored exterior for a non-slip grip and their shock and water resistance make the Weems PRO binoculars the ideal companion when the going gets tough. Waterproof binoculars Exceeds military specifications for superior optical performance & durability Purge gas: Argon (AR) for improved light transmission & fog prevention Focusing System: Individual eyepiece focusing Magnification: 7X Objective lens: 50mm Exit pupil: 7.14mm Eye relief: 23mm Prism type: PORRO/BAK-4 Field of view: 413 feet at 1,000 yards Lens coating: Fully Multi-Coated (FMC) Body construction: Magnesium Alloy Rubber-armored & fold-down eye cups Soft black case, padded neck strap, & lens covers included