Not sure about 30D...since I am not a canon user, but) K9 H7 o7 C% X) e
, F# m( Z7 u4 Y8 _* x! E1 K% b3 jFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu... 8 U( T9 U' f5 T1 q 7 o! ], l' p1 {The shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.