Not sure about 30D...since I am not a canon user, but& x" D0 `/ @/ ]; @
% a, `% ~7 O8 _! h3 HFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu... ; ^+ A$ { S, k# x+ X: e9 a" t$ m) L9 Q, |* {8 R1 `! a5 v: K. c
The shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.