Not sure about 30D...since I am not a canon user, but6 ?6 S) b2 z8 J) G. L
4 N2 z) q1 h) ^For most of the Cameras, this sound is simulated, and it can be turned off in setting manu... + W ~& F; x9 s: g7 T- u' N# c5 _0 b: [
The shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.