My Canon 17-55 IS is starting to vibrate like crazy. I can hear the IS buzzing and see the image vibrating through the viewfinder. If I zoom in and out it stops and sometimes it works without issue. With the IS turned off the lens works flawlessly.
Has anyone else seen this phenomenon and if so, have they had it fixed, and how much did it cost, roughly?
Is there an easy fix for this besides sending it into Canon? It does it on both my xti and my 40D so I know it's the lens. It is not under warranty.
Any advice would be greatly appreciated.