Not sure about 30D...since I am not a canon user, but / ^+ ]$ ~3 g$ `( D/ W' l/ U( @' [8 S
For most of the Cameras, this sound is simulated, and it can be turned off in setting manu... - U. F. V* r1 `8 j" V/ Z" G' t0 j6 v: r' T n
The shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.