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Binoculars 7x50, BaK4, waterproof  Features: Professional optics binoculars with illuminated compass and 2 ranging tools. The actual viewing angle of 7.3° makes it easier to find the object and not lose it while moving (like, for example, birds in flight). The efficient Porro prism system with BaK-4 provides precise, high-quality images. BaK-4 with 99% light transmission reduces distortions, color errors and reflected light, ensures accurate image transmittance from the lens to the eyepiece. The multi-coated optics gives optimised light transmission and delivers edge to edge sharp images with a high-contrast. The diopter correction range (-5 ~ +5) makes the binoculars usable by glasses wearers. According to the interpupillary distance between different people, the eyepiece range can be adjusted from 56 to 72 mm. Binoculars have a built-in ranging ruler and orientation compass. The eyepieces Mils reticle scale and the calculator dial can be used to estimate your distance from an object if its size is known or vice versa. Directly calculate object's distance on scale on left ocular through read ruler data. The built-in rangefinder and compass scale can be illuminated with a light on/off switch. Two LR43 batteries are included and pre-installed in the binocular, ready to use. The batteries should be removed if the device will not used for a long time. The ergonomic, non-slip and impact-resistant rubber design ensures secure grip. The most necessary accessories are included: a convenient protective bag for the binoculars, a neck strap, a lens cap and attached eyepiece caps, a cleaning cloth. Binoculars can be mounted on a tripod. Waterproof binoculars are designed to meet military standards. It can be performed in all weather conditions, so it can provide you with all the tools needed for your next outdoor activities, such as marine, navigation, fishing, boating, hunting, water sports, birding watching, wild travel and more.  Technical data: Magnification: 7x. Lens diameter: 50 mm. Field angle: 7.3°. Field of view (at 1000 m): 127 m. Near focus: 7 m. Diopter adjusting range: -5 ~ +5. Interpupillary distance (IPD): 56~72mm. Prism type: Porro prism, 99% light transmittance. Prism material: BaK-4. Resolution: