I haven't looked at the NPS equipment list in a while... but i was shocked to see the D600 on the list.
IMHO, the D600 is an 'entry-level' FX camera. I always took the NPS equipment list as Nikon's idea of what pro's need (or what Nikon thinks they need).
The D7000 only makes the list as a backup body. But isn't the D600 basically a D7000 with an FX sensor? I've been told the D7100 won't be on the NPS list (much like the D7000 it can be a backup body) even though it will have better build quality then the D7000 (full weather sealing,slightly larger grip.. etc).
Seeing that the D300s is the newest DX body on the list, does that give you hope for the D400? Or does that make you think Nikon has given up on DX for NPS qualifying equipment?
Well the D600 is a $2000 body, and the only way you can outfit it with glass is with FX lenses which tend to be pretty expensive. I have a D600 and it makes a very good second camera for FX, or a light body for those situations. My D600 though has been converted to IR and its a top of the line IR body.
The typical D7000 user is going to be using DX glass rather than the pro lenses used by many of the D600 users.
I fully expect to see a top of the line DX body - something well beyond the D7100.
Or the D9x00, which would make more sense given that 3/5/7 are odd numbers, however, 3, 5 and 7 are primes. I would like to see Nikon release a dirt cheap 2x00 series as well, but who knows anymore. DSLRs are extremely complicated devices compared to mirrorless or P&S cameras.
Nikon is probably thinking of a different set of criteria for ranking its cameras. For example some bemoan the "lowly" progenitor of the D600 but what DSLRs in the world create more professional level images? D800, that is all. Nothing in the pro lines of Canon or Nikon. They were probably thinking studio and wedding photographers who need image quality more than speed or AF tracking. Those types of pros probably outnumber pro sports and wildlife shooters who might value speed over IQ. Whatever the criteria, Nikon will probably never reveal it. Stan St Petersburg Russia