Yes and no. Or should I say, no and yes? 😉 FD lenses are not compatible with the eos mount, but if your lenses are nice enough it might be worth investing in an adapter from Ed Mika :http://www.ebay.com/sch/ed_mika/m.html
He makes adapters for most of the old FD lenses. I have one for my FD 600 f/4.5 and FD 300 f/2.8. You can visit his photostream here: http://www.flickr.com/photos/ontarian/
I've been quite happy with the adapters, and have infinity focus on both lenses.
Canon FD lenses are not directly compatible with the EOS Digital SLR cameras. We regret any inconvenience that this may cause you.
If you are using Canon EF lenses then there is a 1.6x Conversion Factory with APS-C type cameras such as the EOS Digital Rebel Series and models like the EOS 60D. Full frame cameras like the EOS 5D Mark III use EF lenses at their marked focal length.
Sorry to bother you with another question but I have a 35-70 and a70-200w macro do you know what I will lose from the EOS with the adaptor and using the FD lens's.
You would need to meter by manually stopping down the aperture (the viewfinder will get dark and harder to focus), and of course there would be no auto-focus.
09/26/2023: New firmware updates are available.
08/18/2023: Canon EOS R5 C training series is released.
07/31/2023: New firmware updates are available.
05/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
03/30/2023: New firmware updates are available.