They may but I am not an expert. It's a good question to ask at Steve's Digicams Just go to the Canon forum or the SLR forum and post. Signup is real easy. Lots of folks with far more knowledge than me read those forums and respond (nicely, helpfully and politely).
http://www.steves-digicams.com/
Apologies, but I wouldn't want to steer you down the wrong road...
enjoy,