Quick Release Plate (C-Series) is a quick release plate which can attach to the base of the Canon C100, C300, and C500 cameras. The plate has an ARRI standard dovetail slot which can interface with third party accessories. This plate is included in item Quick Base (C100, C300, C500). To quick release out of dovetail (not included), turn thumbscrew and depress pin, move camera toward rear, and remove.