The Bresser Topas Kompas 7x50 Porro prism binoculars are high-quality waterproof binoculars specifically designed for the nautical/water sports market. With 7x magnification, they are ideal for locating buoys, other ships, and bridges, even in stormy weather. With a 50mm lens diameter, the binoculars are very bright and can also be used at night under clear skies. The binoculars have a 7.15mm exit pupil, the same size as the human eye, allowing for full light output without loss of light. The binoculars have fully dioptrically adjustable LE (Long Eye) eyepieces with eyecups, allowing for individual adjustment to your vision. The eyecups can be easily folded back, allowing even eyeglass wearers to see the full field of view. Focusing is achieved through both eyepieces, and once focused at a distance of approximately 20 meters, the binoculars remain sharp to infinity without needing to be refocused. The binoculars are equipped with an illuminated 360° compass that can be used for navigation, monitoring other vessels, and early detection of potential collisions. Using the rotating distance ring on the right objective tube, distances can be estimated and elevation can be calculated to determine whether you can pass under a bridge. The binoculars are nitrogen-filled, making them waterproof and fog-resistant. A threaded mounting on the front of the binoculars allows them to be easily mounted on any camera tripod using a tripod adapter. A yellow float strap is included to ensure the binoculars float if accidentally dropped into the water. Specifications: - Colour: blue - Gender: unisex - Material: plastic, rubber - Dimensions: 19.5 x 19.7 x 8 cm - Weight: 1185 grams Optical specifications: - Magnification: 7x - Lens diameter: 50 mm - Field of view: 116 m - Light intensity: 51.02 - Twilight factor: 18.71 - Optical design: Porro - Prisms: BaK-4