Best Quick Release Plate Clamp Adapter Converter for 39mm Arca-Swiss Fit QR- Plate Used to 50mm Manfrotto / Gitzo Tripod Fluid Head
Amazon.com: Sequpr Camera Tripod Quick Release Plate Adapter with 1/4'' Screw, 200PL-14 323 Camera Mounting Adapter for Manfrotto, Universal Quick Release Plate System for Camera Gimbal, Black : Electronics