Not sure about 30D...since I am not a canon user, but, n) @( D9 j+ ~" m3 ^' c; F& d
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For most of the Cameras, this sound is simulated, and it can be turned off in setting manu...# Q3 {/ e8 j8 q# w. a
, c( \( n# k# y' t/ Q1 yThe shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.