The Bushnell 20x50 Powerview Binoculars combine contemporary styling and design with traditional Bushnell quality and durability. The unique InstaFocus system allows the user to adjust through the entire focus range by simply pressing down on one side of the focus lever to quickly and smoothly adjust the focus while tracking moving targets or looking at a variety of subjects at different ranges. Outstanding light transmission through fully-coated optics ensures bright, crisp, and clear viewing. These binoculars can be mounted on a tripod using an optional adapter to limit distracting vibrations or eliminate arm fatigue, for clearer views during long glassing sessions.