where should i send my Canon camera to fix

[Phuong]

i have a Canon 350D modified for shooting IR.
it was fine until this morning, when i switched it on, it just wouln't turn on. i tried changing batteries and so on but no luck. i've no idea what's wrong with it, but what freaks me out the most is it is probably warranty voided since i opened it up to remove its hot mirror.

by the way im in Montreal, Canada. does anyone know where i should send it to fix? (and how much is fixing cost?)

[Ben Rubinstein]

Try removing the lens  and cleaning the contacts in the battery compartment. Canon will fix it with pleasure, but they will charge if you don't have the warranty.