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Bushnell 7x50 Marine with Illuminated Compass & Rangefinder Reticle Binoculars
Built with the mariner in mind! These Bushnell 7x50 Marine binoculars with compass and range-finding reticle are standard equipment for boating sailing hunting and nearly any outdoor activity. They deliver clear images in even the foulest weather conditions from fog rain and ice to saltwater spray.They're built to withstand extreme nautical environments and float in them! We suggest you keep them on board but the 7x50 Marine binoculars are buoyant waterproof and corrosion-resistant so they can take a little dunking. You'll appreciate the ultra-bright crisp views granted by their multi-coated optics and premium BaK-4 prism glass. Rugged rubber armoring provides a sure grip absorbs shock and keeps them from sliding in rough conditions. They're essential equipment if you spend much time on deck and aren't fazed by a little time off deck. The Bushnell Marine binoculars come with a rugged nylon case and neck strap. Built to last they're backed by a lifetime limited warranty.Key Features100% waterproof100% fog-proofSink-proof (they float)BaK-4 Porro Prisms for bright clear crisp viewingFully multi-coated optics for superior light transmission and brightnessO-ring sealed and nitrogen-purged to keep out moistureHighly resistant to saltwater corrosionNon-slip non-skid rubber armor cushions bumps and shock prevents sliding and provides a firm grip when wetHermetically sealedFold-down eyecupsAdvanced Nautical FeaturesThe perfect binocular for sailors and outdoor lovers the Bushnell 7x50 Marine offers a liquid-filled compass built into the viewing optics. Compass swing stops immediately due to advanced damping design and bearings are marked out in easy-to-read precise one-degree increments making the instrument ideal for shipboard navigation or locating objects accurately. A range-finding scale allows the viewer to estimate the range of objects to a known size. Using the CompassThe compass is a precision unit. It has extremely fast damping so there is almost no swing and is corrected for dip (Latitude). Compass scale is in one-degree increments and is aligned with the vertical range finding scale. Compass users should always know the local variation between magnetic and true north in order to navigate accurately. Using the Rangefinding Reticle ScaleThe vertical scale (reticle) visible through the left half of the binocular above the compass display allows calculation of distance to an object if its height is known or calculation of height if its distance is known. Each mark on the vertical scale has a value of 5 MIL (1MIL is equivalent to an angle that can determine an object one meter in height at a distance of 1000 meters). Thus if a navigation chart gives the height of an object by sighting on it and counting the number of MILs in the reticle you can determine its distance. Here are the pertinent formulas:To measure distance when the height is known: [Objective Height (m) / Scale Reading] X 1000m = Distance in Meters To measure object height when the distance is known:[Distance (m) X Scale Reading] / 1000 = Object Height in MetersAbout BushnellFor over 50 years Bushnell has been the industry leader in high-performance sports optics and outdoor accessories. Bushnell's dedication to emerging technologies leading edge design and performance innovation is what makes it one of the most reputable and recognized companies in the world. Bushnell boasts leading market share in all of the sports optics categories and their products have consistently won design and performance awards from prestigious organizations.Bushnell product lines enhance the enjoyment of every outdoor pursuit from spectator sports nature study hunting fishing and birding to stargazing. Indoors Bushnell binoculars bring the audience closer to the action in fast-moving sports or the fine arts at theaters and concerts. Bushnell Outdoor Products is the parent company of the following brands: Bushnell Bolle Serengeti Browning Sports Optics Tasco Uncle Mike’s Hoppe’s Butler Creek Stoney Point Blackwater Gear and Uncle Mikes Law Enforcement.
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