Canon CM-V1 CM-V1 Locking EF Mount Kit

Designed for Canon's C500 MKII digital cinema camera, the CM-V1 mount kit (Product code: 3937C001) is a user changeable lens mount kit that changes the mount to an EF Cinema Lock Mount. This is achieved by allowing the lens mount to be easily replaced with an EF Cinelock mount by removing the EOS C500 Mark II dedicated bolt. Furthermore, the flange back can be adjusted by adding the included shim.