I don't find much use for this lens or the mount so I am trying to part ways with it. the Nikon F-mount adaptor was purchased on 5/12/11 and is in perfect condition. The Nikon lens was purchased on 5/13/11 and is also in perfect condition. I paid $350.00 for combination and trying to sell for $250.00 plus $10.00 shipping in US. I have original boxes and documents on both items.