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

Hi-index BAK4 prisms deliver a bright, sharp image, revealing every fine detail of an object. Green FMC anti-reflective coating cuts reflected light in the objective lens, boosting light transmission, image brightness, and clarity. A 50mm objective lens and 22mm eyepiece, combined with a wide-angle view, make it easier to see distant objects without eyestrain or dizziness. IPX7 waterproof, fogproof
night vision binoculars: Please notethey cannot function in completely dark environments. Only in low-light conditions, such as at dusk or dawn, can they provide maximum image brightness. Nitrogen-filled waterproof and anti-fog construction. Waterproof rating up to IPX7 (at 1 meter depth for about 30 minutes) and floatable. Military surplus binoculars with rangefinder and compass: by using the ruler, you can directly calculate the distance of an object on the left eyepiece. The illuminated compass helps you identify direction. In low-light conditions, the ruler and compass can be lit for visibility.
Focusing system: with ±5 dioptre left and right dioptre rings, you can adjust focus for clear viewing without glasses and for fine tuning.
Exit pupil diameter: 6.8 mm.
Exit pupil distance: 22 mm (long eye relief for eyeglass wearers). The eyecups fold easily, allowing comfortable use with glasses. Binoculars come with a bag and strap for easy carrying. Durable rubber armored coating feels comfortable to hold and is rugged enough to withstand tough conditions. Ideal for travel, concerts, outdoor activities, bird watching, climbing, hunting, archery, hiking, camping, boating, target shooting, and water sports. A great choice for birthdays, Christmas, Halloween, and Thanksgiving Day gifts