I have used my 18-200 more than any other lens I own, I have used it on my D800 and it works very well on a FX body, you won't be disappointed other that giving up a lot of resolution. I have an indoor theater gig coming up so used that as an excuse to buy a 70-200 f2.8 which seems to work very nice on my FX body. The 18-200 lives on my D300 most of the time.