Steiner Military-Marine 10x50 Binoculars with Cap and Microfiber Cloth PouchThe traits that earn Steiner binoculars such respect in combat incredible toughness, exceptional clarity and reliable optical performance are found in the civilian Steiner Military Marine series. The Military Marine 10x50 Binoculars feature Steiners Sports Auto Focus system for crisp, sharp images near and far without constant adjustment. Just set the focus to your eyes once, and youll have a constant, clear view of objects from 20 yards to infinity.