Not sure about 30D...since I am not a canon user, but( j Z- C8 _6 [2 r
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For most of the Cameras, this sound is simulated, and it can be turned off in setting manu... 1 i5 [6 o, {& f" G3 P7 W* J 8 {9 i+ A7 `5 VThe shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.