For extended, long-range surveillance, where maximum magnification and pinpoint sharp images are essential, the new MINOX BL 15x56 BR binocular delivers unmatched performance, even in low-light situations. This superbly designed binocular provides all the quality features you'll need, including a threaded tripod socket, so important when hand-held observation is not practical. Using MINOX ocular systems, it produces bright, high-contrast images, even in less than ideal light, with its 17 twilight factor. The rubber-armored aircraft-grade aluminum body is nitrogen purged for waterproof, fog-proof performance. Despite its powerful size, it has a relatively light weight of 38 ounces, thanks to materials used, and with its ergonomic design it's comfortable to use. As an added convenience, it has a threaded tripod socket. Field of view for the 15x56 is 215 feet at 1,000 yards, and it has a near-focus distance of about 23 feet. MINOX Booth #15351-5