Not sure about 30D...since I am not a canon user, but + k% t' H V% U* z 5 a7 d& q. K5 Q8 E# q6 ?For most of the Cameras, this sound is simulated, and it can be turned off in setting manu...) D4 y9 A9 |" d/ l 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.