Canon FD lenses to Canon EOS-R Camera Body (EOSR/CAN) | Novoflex
Amazon.com : Fotasy Cannon FD Lens to EOS EF Adapter, FD EF Adapter, FD EF-S, Infinity Focus, Compatible with Canon DSLR 6D 5D Mark IV III II 1Ds 1D 7D II 7D
Metabones Canon FD Lens to Canon RF-Mount Camera T Adapter - Black MBFD-EFR-BT1 - Filmtools