AF Confirm M42 Lens to Canon EOS EF Mount Adapter 7D 30D 40D 50D 500D 550D 600D 60D 1100D 1000D T3i T2i DC133: Amazon.co.uk: Electronics & Photo
M42 Screw Mount SLR Lens to Canon EOS Mount SLR Camera Body Adapter – Fotodiox, Inc. USA
Amazon.com : Fotasy Adjustable M42 Lens to Cannon EF-M Mount Adapter, M42 EFM, M42 EOS M Adapter, Compatible with Canon EF M Mount Mirrorless Cameras EOS M M1 M2 M3 M5 M6