The KIWIFOTOS LMA-PK_EOS ultra thin lens mount adapter is made from highly refined bronze and chrome plated with a fine finish. This adapter allows you to use PENTAX K PK lens on your Canon EOS camera. The lens fits physically but automatic diaphragm, auto focusing, or any other functions can only operate manually. Preserve all focusing range up to the infinity point.
Please Note: Certain degree of vignetting might cause when adapter is used on Canon EOS full frame camera.