ESSLNB 7X50 Marine Binoculars IPX7 Waterproof Binoculars for Boating with Illuminated Rangefinder and Compass BAK4 Prism FMC Military Floating Binoculars for Navigation Hunting w/Bag and Strap : Electronics

Description

BAK4 prims offers higher refractive index rate, brighter edges.Fully multi-coated optics reduces light loss and glare. The thickness of prism is 20mm.The thicker the prism is, the larger the field of view is.The high quality optics ensures excellent image quality and color differences, and reduces color errors and distortions. Field of view is 396 feet at 1000 yards. These internal reticles rangefinders require you to know the size of the object (height or width) if you wish to calculate distance. The reticles is illuminated for use at night (batteries included). The compass is illuminated for use at night (batteries included). Compass with illumination switch indicate orientation for navigation Under one meter depth, the sealed binoculars is 100% waterproof in water for 30 minutes. Durable rubber armor with a non-slip design protecs the binoculars from shocking. Nitrogen-filled feature safeguards your waterproof and fog proof binoculars from fog, raindrops and dust . 23mm larger eyepiece diameter offers you wider field of view and high definition. This giant binocular makes you feel a new level of viewing experience and comfortable to observe objects without eye fatigue because of large eyepieces. According to the different eye distance,you can change the width from 56mm to 72mm. Two left and right diopter adjustment rings can adjust sharp optics to meet the different requirements of vision based on your individual eyesight. Individual focus system offers the freedom for accurate focusing at long distances.The eye cups can be folded down for use with glasses wearer easily. Exit pupil diameter between 4 mm and 7 mm offer ideal image brightness and can still be observed in daytime and low-light environments. Ours is 6.8mm.

Product Overview