Not sure about 30D...since I am not a canon user, but # r$ a7 C. w5 O6 C' Z6 t ) b! J- ^8 o. K1 X% j+ @2 e7 R6 HFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu...6 b& a3 F# f% w0 l% x: C& Q/ A
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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.