Not sure about 30D...since I am not a canon user, but % i3 Y6 [* a: [ 4 w6 ?+ f, q, mFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu...! { w2 }* t* p5 W
9 s& l: u" [( Y2 c+ a
The shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.