Gitzo 75mm half bowl video adapter systematic, series 5 - GS5321V75 | Gitzo HK
75mm Bowl Adapter for Sachtler Gitzo Manfrotto Half Ball Fluid Video Tripod Head | eBay
Amazon.com : 75mm Bowl Adapter,Half Ball Flat to Bowl Adapter Converter with 3/8'' Screw for Manfrotto Weifeng Video Tripod Fluid Head DSLR Rig Camera : Electronics
65mm 75mm Half Ball Flat to Bowl Adapter Converter for Camera Tripod Fluid Head | eBay
Manfrotto Adapter for 75mm Bowl to 60mm Bowl | Bowl, Adapter, Installation