Not sure about 30D...since I am not a canon user, but# v( R$ u- w S$ B
- V2 o' G7 D1 e9 H. O3 @3 o cFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu... 0 _ l# |0 [2 E: G0 s. { 4 R* y# `3 Z2 jThe shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.