Lens lock / release and stop screw
There is no ROM connection on the ring so diaphragm control of the lens is set manually
Fine finishing! Install, remove and operate lens smoothly!
Made of Metal,sturdy enough
1.Although the lens will fit physically,automatic diaphragm,auto-focusing,or any other function will not operate correctly while using this adapter.
2.In this case “Stop-down mode”will need to be used when metering since the lens doesn’t have the ability to have its apeture controlled by camera body.You can shoot with manual mode or apeture priority mode.
Canon EOS M mirrorless camera body
1 X M42 Lens mount to Canon EOS M EOSM Camera Adapter Ring M42-EOS M