I got it working for my EOS450.
* install shutter
* Get canon configuration file from: http://lirc.sourceforge.net/remotes/canon/RC-1_RC-5 and save it to /etc/licr/
* Add following line "frequency 32000" to the RC-1_RC-5 -file just before line "begin codes"
* add canon configuration to lircd.conf: echo "include \"/etc/lirc/RC-1_RC-5\"" > /etc/lircd.conf
* reload lirc: sudo /etc/init.d/lirc reload
* modify /usr/lib/hildon-desktop/shutter.py, change value of "remote" to "CANON-RC1/RC5", and value of "code" to "S"

Not very clean solution, but at least it works I used nano in xterm to edit files.