Not sure about 30D...since I am not a canon user, but + E) t7 U/ c8 P- [ ( S7 ^0 T0 }5 b- `8 cFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu...* h. z4 ?+ u: K. N
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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.