The Swarovski Optik TAs-SLC Binocular Tripod Adapter allows you to easily mount your 42 or 56mm SLC-series binoculars, and just about any other binocular with a 1/4"-20 threaded socket, onto a photo/video/field tripod for hands-free use. The base of the adapter is Arca-Swiss compatible to work with many quick release heads, plus the 1/4"-20 mount is compatible with a wide variety of support systems. Tripod-mounting your binoculars, especially high-power ones or those with large objective lenses, helps to steady the view, reduce vibrations, and eliminate arm fatigue.