Not sure about 30D...since I am not a canon user, but* d0 ?) w/ ?3 T4 I6 K
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For most of the Cameras, this sound is simulated, and it can be turned off in setting manu.... g C k% {7 i* n \$ Y; K
# L! {& {( Z" m/ NThe shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.