The Novoflex EOS/CO Lens Mount Adapter allows for a lens with Universal Screw Mount (Pentax M42) to be mounted unto a Canon EOS type camera.
Although the lens will fit physically, automatic diaphragm (AE metering), or any other functions are not retained using this adapter. In this case you will need to meter in "stop-down mode" since the lens does not have the ability to have its aperture controlled by the camera body.
