Bushnell Marine 7x50  Binocular
Magnifying life does, indeed, include sea life. And these are just the binoculars to do it. Our legendary 7x50mm Marine binoculars are a  premier choice for spotting marinas, deadheads, or the fisherman's best friend, feeding birds. Built to withstand the conditions that come along with the nautical world, they are not only nitrogen-purged to provide reliable waterproof/fogproof performance - the 13-7500 models are even hermetically sealed to further assure no moisture creeps in. Impressive light transmission from BaK-4 porro prisms, multi-coated optics and large UV-coated objective lenses brighten images from dusk-to-dawn. And, all models not only float, but easy-grip rubber armoring protects and provides a secure hold should things get rough. Always nice, should an unexpected swell or throttle burst take you by surprise.The internal compass illuminates without obstructing the field of view allowing you to establish headings as you continue to scan the horizon for markers and hazards.Specifications for this Bushnell binocular include:Magnification: 7xObjective lens: 50mmField of view at 1,000 yards: 350 feetTech TalkObjective Lens: The diameter of the objective or front lens. The larger the objective lens, the more light that enters the binocular, and the brighter the image.Field of View (F.O.V.): The side-to-side measurement of the circular viewing field or subject area. It is defined by the width in feet or meters of the area visible at 1000 yards or meters. A wide angle binocular features a wide field of view and is better for following action. Generally, the higher the magnification, the narrower the field of view.Porro Prism System: In porro prism binoculars the objective or front lens is offset from the eyepiece. Porro prism binoculars provide greater depth perception and generally offer a wider field of view.