just curious. quite lots of lens can be used on canon DSLR by adaptor and AF -chip (metering, ETTL enabled) like: leica R, old M39 mount , M42 mount, carl zeiss contax/yashica, rollei QBM mount, all medical format, schneider DKL, pentax PK mount, olympus OM mount, exkata mount...all can be inserted to EOS mount by adaptor and got infinity focus.
the image quality (by using chip) much better than those without chip, even using same adaptor.
the image quality (by using chip) much better than those without chip, even using same adaptor.