Will Canon 35mm camera lenses fit a new Canon SLR digital camera?
Absolutely! The only trouble I have had is with a 2X converter
and a 400mm lens. It would not auto focus or stop down. I still got
an OK photo of the moon. I migrated ALL my lenses successfully. I
think film lenses work on digital. Digital do not work on film. Why
not? Due to the .625 smaller area covered by the lens. They will
not even mount. The answer above is right, but if you have any
troubles with canon and canon lenses just feel free to contact
Canon Support Team. Visit canon's official website and there you'll
be able to find a link to their customer support.