Not sure about 30D...since I am not a canon user, but' L+ T$ {4 a0 N2 Y2 w8 G: @4 [+ e
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For most of the Cameras, this sound is simulated, and it can be turned off in setting manu...8 ^/ E9 G) c2 q2 K9 q* d Y
/ \; J% S4 n* X4 P. P4 ^The shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.