I've just bought a 24-105 f4 L. This lens is great but by using it, i noticed a sound like grrrrrr during 2 or 3 seconds after shooting. Is that normal ? The manual seems to mean it is IS working.
But i got a 17-85 IS that didn't doo any noise ! Already, at a test, it seems to me that i hear this sound on a 70-200 f4L IS. But it was realy louder.
I would order them from no to loud noisy :
-17-85 IS - silent
-24-105 IS - noisy
-70-200 f4 IS - loudy
Your advice ? Do i need to change my 24-105 ? Is yours doing so much noise ?