Not sure about 30D...since I am not a canon user, but" `4 o) ]* {8 Z, K E
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For most of the Cameras, this sound is simulated, and it can be turned off in setting manu...) X% _% n, K8 Q2 {+ |2 [6 ]# m4 e
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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.