Camera & Lens Compatibility Chart (Updated) : r/videography
Amazon.com : Opteka 58MM 0.35x Fisheye Wide Angle Lens Compatible with Canon DSLR Cameras Including Macro Close Up Attachment : Camera Lenses : Electronics
Amazon.com : Canon Mount Adapter EF - EOS R, Compatible with EOS RP, EOS R, EOS R6, EOS R5 : Electronics
Canon EF-S lens mount - Wikipedia
AbelCine's Canon Charts - Film and Digital TimesFilm and Digital Times
EOS to E Mount Adapter Canon EF EF-S Mount Lens to E NEX Mount - KENTFAITH
Fujica 35 X-Mount SLR Lens to Canon EOS Mount SLR Camera Body Adapter – Fotodiox, Inc. USA