7x50 Waterproof Marine Binoculars for Adults with Rangefinder Compass BAK4 Prism FMC Lens for Birdwatching Hunting Boating Fishing Water Sports(Yellow)

High-index BAK4 prism delivers a bright, sharp image to reveal every fine detail of an object. Green FMC anti-reflective coating minimizes reflected light in the objective lens, enhancing light transmission, image brightness, and image sharpness. The 50mm objective lens and 22mm eyepiece with wide-angle vision combine to make viewing distant objects more convenient, reducing eyestrain and dizziness. IPX7 waterproof, fogproof night vision binoculars: Please note, they cannot function in all dark environments. Only under low light conditions, such as at dusk and dawn, can they deliver maximum image brightness. Nitrogen-filled waterproof and anti-fog construction. Waterproof rating up to IPX7 (at 1 m depth for approximately 30 minutes) and floatable. Military surplus binoculars with rangefinder and compass: Using the ruler, you can directly calculate the distance of the object on the left eyepiece. With the illuminated compass, you can determine direction. In low light conditions, the ruler and the compass can be illuminated. The focusing system features a ±5 diopter left and right diopter ring, enabling you to adjust the distance for better viewing without glasses and for precise focusing. Exit pupil diameter: 6.8 mm. Exit pupil distance: 22 mm (long eye relief for eyeglass wearers). The eyecups can be folded down easily for use with glasses. Comes with a bag and strap for convenient carrying. Durable rubber armored coating provides a comfortable grip and is tough enough to withstand various conditions. Ideal for travel, concerts, outdoor activities, bird watching, climbing, hunting, archery, hiking, camping, boating, target shooting, and water sports