Not sure about 30D...since I am not a canon user, but 3 V- F, `1 w1 [) ]3 N : N5 C& U/ P) |- v! OFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu...7 ]: Z9 W4 |0 r$ x
% E* u$ g% T* d% @( `% KThe shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.