I am looking on possibly getting a D7200 with the 18-140 lens. Of all the Nikon lenses I want to get some primes and log zoom lenses. Am I limited to just the DX lenses only or can the FX lenses work with no problem. I do not see in there catalog any long primes or zooms in DX format. I want an APSC format camera and want to get some long lenses in Nikon if possible. Feedback appreciated Bill