This ZEISS Interchangeable Mount Set EF allows users to convert their CP.2 135/T2.1 lens to EF mount. The set includes a Canon EF mount ring, an adapter ring with support bracket, Torx screws, eleven color coded shims and a rear lens cap. As the flange focal distance varies from camera type to camera type, it is sometimes necessary to make adjustments when changing the lens mount or camera model, and in order to perform this adjustment, ZEISS provides shims in eleven different thicknesses.
Note: The use of a T6 torque wrench with a torque of 0.4 Nm is strongly recommended.