http://www.nikonchat.com/18-200mm-nikkor-2/

Invest Nikkor 18-200mm VR for macro photography?
I was wondering if Nikkor 18-200mm can be reversed and if there are good macro shots. Please advise. Thanks,
The 18-200 is a little big, heavy and expensive to go back mounting of the camera. Collects $ manual-50 focus a target of 50 mm in a local camera store if you want to play with reversal of the lens. Oh right, your question – that certainly "may" use the inverted objective, but do not produce as nice an image as a simpler goal would likely be.