Magnesium Alloy Quick-Release Tripod Adapter for 35mm Cameras. Specifically designed for 35mm cameras, this amazingly light adapter features an extra wide mounting platform. It has a flanged edge to prevent camera slippage when shooting vertically. It features a "Camera Safe" slide mounting quick-release platform with "Auto Lock" retaining system. Its dimensions are 10 x 5.6 cm and weight just 122g.