Amazon.com : Pixco Pro Focusing Infinity Focal Reducer Speed Booster with Optical Glass Lens Adapter for Canon FD FL to Sony E Mount A7 A7s A7R A7II A7RII A7SII with Optical Glass :
Amazon.com : Fotasy FD Mount Lens to Cannon EF-M Adapter, FD EFM, FD EOS M, Tripod Mount, Infinity Focus, Compatible with Canon EOS M Mount Mirrorless Cameras EOS M M1 M2 M3
Amazon.com : Fotasy Cannon FD Mount Lens to EF-M Mount Adapter, FD EFM Adapter, FD EOS M Adapter, Compatible with Canon EF M Mount Mirrorless Cameras EOS M M1 M2 M3 M5