Leofoto BC-03 Hands Free Modular Binoculars Adapter for Tripod Mount Arca Compatible The rapid-release BC-03 Binocular Tripod Adapter allows for quick and easy connection and disconnection between your binoculars and your tripod. The adapter fits binoculars with a 1/4"-20 receiver in the center hinge (press the safety lock to disengage the stud), and can be mounted on a tripod or light stand via 1/4"-20 socket or an Arca-type dovetail. Binocular adapter (standard include S1) Tripod Mount Arca Compatible For diameter: General Weight: 79g / 2.79 ounces Dovetail: Arca standard Leofoto S1 Stud for BC-3 Binoculars Adapter Width: 19mm / 0.75 inches Height: 29mm / 1.14 inches Weight: 5g / 0.18 ounces Leofoto S2 Stud for BC-3 Binoculars Adapter Compatible with Swarovski SLC Width: 22mm / 0.87 inches Height: 29mm / 1.14 inches Weight: 7g / 0.25 ounces Leofoto S3 Stud for BC-3 Binoculars Adapter Compatible with Leica Ultravid Binoculars Width: 24mm / 0.94 inches Height: 32mm / 1.26 inches Weight: 11g / 0.39 ounces Leofoto S4 Stud for BC-3 Binoculars Adapter Compatible with Zeiss RF Stud Width: 23mm / 0.91 inches Height: 28mm / 1.10 inches Weight: 25g / 0.88 ounces