Neewer AF confirm Adapter for Pentax K PK Lens to Canon EOS EF Mount Camera 7D 60D 5DII 600D/Rebel T3i 550D/Digital Rebel T2i Supports AV (Aperture Priority) and Manual Mode. Fixed a bug of focus on EOS 60D, 550D, 7D, 5DII,and reprinted contacts. Make Pentax K PK mount lenses can be used on Canon EOS EF camera body. It can focusing infinite.