Lens shacking automatically
I have a D200 with a Nikkor AF-S DX 18-200mm ED zoom, and I have a similar issue with the inside of the lens shaking when I turn it on, It turned out to be a problem with the vibration reduction motor inside the lens. I first noticed a problem when zooming that it wasn't smooth, as though the inside lens was catching on something. It turned out that a roller inside the zoom somehow caught the wiring strip inside the lens and damaged it, causing the VR motor to short out.
There are forums that tell you how to repair the problem yourself on that lens, providing that you can get the replacement parts. I elected to send mine in for a repair, and hopefully its going to cost less than $AU200.00
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