Not sure about 30D...since I am not a canon user, but5 g. a8 M7 \* ]9 {$ k4 }9 X8 _
: o$ I' A7 Z+ M# P# o4 x- sFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu... ; E6 _/ A x6 R3 {) p" Q2 U+ r/ g$ y
The shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.