Two of my lenses have a problem...
My 24-105 had a slight wobble from new (when mounted to the camera, everything in front of the "Image Stabilized" logo moves slightly - the left hand side of the lens doesnt seem to be held together very well), and it's got worse since then. Now I have to be quite careful with it - I'm afraid of breaking it! It also gives some vignetting if I take a photo with the lens pulled sideways slightly.
There is a similar wobble on my 70-300 DO but nowhere near as bad (not noticeable unless you're looking carefully).
What can I do to fix it / is it serious?!
