Not sure about 30D...since I am not a canon user, but, X6 s1 G7 n/ D# P0 [$ R( G0 J
G# }: F" ?6 ^7 H' H3 f" _0 S+ XFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu...2 f: E/ q/ d8 r9 \
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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.