Lightweight roof prism binoculars with ninefold magnification. Featuring a roof prism design. Twilight number of 13.75. Magnification: 9 ×, close focus limit: 3 m. Bright and clear vision thanks to fully multi-coated optics. Elegant two-tone design. A large, easy-to-use focusing ring. Multi-coated lenses prevent strong reflections and provide a bright, clear view of the subject while minimizing stray light and ghost images. In the UD 9x21, all reflective surfaces of the optical elements are multi-coated with "Full Multi Coating" to ensure particularly bright visibility of the subject. The UD series impresses with a particularly compact housing that is no larger than a palm and weighs only about 195 grams. With the exclusive design developed for the UD series, the binoculars can be easily held in hand and taken along on any occasion, such as for nature observation while traveling and hiking or at sporting events, concerts, and theater performances. Roof prism binoculars. Bring distant objects up close. Whether traveling, at a sporting event, outdoors in nature, or at sea - these binoculars are ideal for your active lifestyle. The use of roof prisms in the construction of these binoculars allows for a handy design and optimal protection of the mechanics, as there are no moving parts on the outside.