Not sure about 30D...since I am not a canon user, but8 Q, \! R. s( a+ F/ R- O$ o7 X' D* B" D
5 [" R5 f/ r; {4 s; M O( r9 n0 fFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu...8 V( T! \( m) T6 D5 \9 U8 X
* i5 @8 i) B2 t+ n7 TThe shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.