The Camera quick release and subplate kit is a must for taking full advantage of the Custom Bracket systems. This system will allow you to quickly mount different camera makes and models (with different heights) to your bracket. (Includes one QR-C and one C-SP) Required: Camera plate (one for each camera) and C-SP (Camera Subplate) (One C-SP for each additional camera plate). Compatible Brackets: All Digital and 35mm Camera Rotating