Not sure about 30D...since I am not a canon user, but 5 b, @6 |" Z0 e0 Q7 f 9 ]0 w h" \0 l4 H! g! q/ d% MFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu... - o+ H/ y( c: Z1 u2 X0 X+ ~+ n5 t- r! Z! ]8 @! s1 v( P* e" L# ]
The shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.