Not sure about 30D...since I am not a canon user, but1 ~6 u+ O( x6 I, ?
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For most of the Cameras, this sound is simulated, and it can be turned off in setting manu...4 n5 P: c. I. y) b+ g: W3 R
$ {6 [1 o4 O; p6 N- |) `, cThe shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.