Not sure about 30D...since I am not a canon user, but) g; ^/ ^% B6 o* w; ^3 I
9 m( [( X h# H2 j7 YFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu... 2 j1 A0 B: J- u' c' k. M; | 7 `- R: m4 {" [: Y/ R7 I8 aThe shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.