Use the Nikon TRA-3 Binocular Tripod Adapter to mount any binocular with an integrated 1/4"-20 tripod socket on the bridge hinge for hands-free and fatigue-free use with greatly reduced vibration. The large thumbscrew allows it to be installed on the binocular without any tools, and has a threaded 1/4"-20 socket on the base for photo/video/field tripods, heads, and quick release plates. Its center post is long and thin to provide the clearance required to use on larger objectives up to 56mm in diameter, while maintaining the full (or near full) interpupillary adjustment range.