10x50 Waterproof Marine Binoculars for Adults with Rangefinder Compass BAK4 Prism FMC Lens for Birdwatching Hunting Boating Fishing Water Sports(Black)

High-index BAK4 prism delivers a bright, sharp image to reveal every little detail of an object. Green FMC anti-reflective coating minimizes reflected light in the objective lens and enhances light transmission, image brightness, and image sharpness. A 50mm objective lens and 22mm eyepiece with wide-angle vision combination make viewing distant objects more convenient without eyestrain or dizziness. IPX7 waterproof and fogproof night vision binoculars: Please note: It cannot operate in all dark environments. Only in low light conditions, such as dusk and dawn, can it provide maximum image brightness. Nitrogen-filled waterproof and anti-fog construction. Waterproof rating up to IPX7 (at 1 m depth for about 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 identify direction. In low light conditions, the ruler and compass can be illuminated. The Focusing System: With ±5 diopter left and right diopter rings, you can adjust the distance for better viewing without glasses and for fine focusing. Exit pupil diameter: 6.8 mm. Exit pupil distance: 22 mm (Long eye relief for eyeglass wearers). The eyecups fold easily so you can operate them with glasses. Includes a bag and strap for convenient carrying. Durable rubber armored coating provides a comfortable grip and is rugged enough to withstand various conditions. Ideal for travel, concerts, outdoor activities, bird watching, climbing, hunting, archery, hiking, camping, boating, target shooting, and water sports. A perfect gift for birthdays, Christmas, Halloween, and Thanksgiving