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
調整可能なM42レンズEF-MマウントアダプタM42 m 42ミリメートルネジマウントlenドロップ無料 - AliExpress
K&F Concept M10131 M42 Lenses to Canon EF Lens Mount Adapter - KENTFAITH