Neewer® Silver Lens Mount Adapter for Pentax PK lens to Canon EOS Camera, fits Canon EOS 1D, 1DS, Mark II, III, IV, 1DX, 1DC, 5D, 5D Mark II, II 7D, 10D, 20D, 30D, 40D, 50D, 60D, 70D Digital Rebel T3 T2i T3i T4i T5i/1100D 550D 600D 650D 700D
Features:high quality and cheapMaterial: Brasscolor : sliverNote: automatic diaphragm, auto-focusing, or any other auto functions will not operate correctly while using this adapter.This adapter allows a Lens Pentax PK screw mount lens to fit on Canon EOS camera body.You need to 'stop-down', since the lens does not have the ability to have its aperture controlled through the camera.You can shoot with manual mode or aperture priority mode (A/V).Usage:1.Put red marks of the adapter and lens collar together.2.Turn the adapter clockwise till the fixative click.The EOS auto focusing system doesn't support as less as F5.6.  Before your capturing you have to focusing with MAX aperture and stop down to capturing.Package Contents:1X Lens mount adapter