CanonRFinder
Well-known
Will you please elaborate this ?
Canon did produce a 50mm f1.8 w/M39 mount as well as many others to fit their own range of rangefinder cameras. Of course, none of them was labeled Summicron...
Sorry should have said that Canon NEVER produced a lens marked as so but did produce the 50mm f/1.8 and many other M39 lenses marked with either Seiki Kogaku/Serenar/Canon Lens.