R-D8-II (For M2 Series)
This new second generation RD8-II is designed to be used with the Ultimate M2 series heads. It has precise click stops at 30°, 15°, 6°, 5°, 4°, 3°, 2.5°, 2° to support up to 700mm equivalent focal length with camera in landscape orientation , or 465mm equivalent in portrait orientation.
Size: 88mm (diameter) x 33mm (height)
MFG Part No: RD8-II