Not sure about 30D...since I am not a canon user, but; G/ C5 O* v7 h% e! K- f
# k1 B+ ? w' N& K2 hFor most of the Cameras, this sound is simulated, and it can be turned off in setting manu... " b' d' B }' ` ' Q8 R; `6 P+ R9 T4 |The shutter and reflective lense sound seldom as loud as what you hear. If yes, they would be damaged very soon.