Not sure about 30D...since I am not a canon user, but + X7 F8 B1 \- s1 k6 @4 c8 f8 Q3 L2 `+ Y* ^
For most of the Cameras, this sound is simulated, and it can be turned off in setting manu...# c, S" R$ z) J7 I
9 U' o# c% O5 S$ f& b0 E: KThe shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.