Not sure about 30D...since I am not a canon user, but1 C) N$ i( J/ x. f1 B
( {5 x6 b$ E7 ?% d8 PFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu...3 [1 O B3 q' h) T- M' I7 V, h! I
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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.