Not sure about 30D...since I am not a canon user, but8 @) E! r/ H1 ]$ W6 d4 i- z' ~
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For most of the Cameras, this sound is simulated, and it can be turned off in setting manu... $ V1 i$ b$ V" s% u' ] } {9 c7 w4 c1 u8 j \; tThe shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.