Not sure about 30D...since I am not a canon user, but, T% M$ I. w( d( y% S1 Q
' k% m1 N, m6 f& B$ ZFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu...1 {9 C- P, m ?
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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.