Not sure about 30D...since I am not a canon user, but! Y% P4 b( @% L. K: x6 ~
# u% I3 P6 L) c E9 E5 c* PFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu... / ?' C8 o# U; ~0 H F5 p$ J1 w( I! B+ k' {
The shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.