bro
i also thought my lens gg liao... when to youtube and see... my horror became worst... T.T
Canon 17-55mm f2.8 is usm lens stabilisation noise problem? can anyone verify this? - YouTube
then i went to photo.net and check...
read a bit here n there and they taught how to check if the IS is working. off the IS and half focus. no sound
on the IS n half focus, got sound!!!
i had placed my whole ear onto the lens itself.... heeheee
but mine isn't that loud... only the snake sound can be heard. the motor IS should can only be heard if i put my ear to the lens