Not sure about 30D...since I am not a canon user, but % ~4 S; _# q. p7 E+ n, D0 b/ c, \ o* N' h/ |5 y! i e
For most of the Cameras, this sound is simulated, and it can be turned off in setting manu...2 z3 ^ U+ `* h& D
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The shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.