Not sure about 30D...since I am not a canon user, but. B) q2 N% u4 g" N9 x, D
: F( h5 \$ m' \8 p6 _9 ]/ jFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu...3 q8 G$ h0 g! n( X6 y
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The shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.