SteveR wrote:
Two lenses that I find cover a great range are the Nikon 28-300mm and the Tamron (or Nikon) 10-24mm. If you feel like you need extra length I highly suggest the 28-300mm, which would give you the field of view of 42-450mm. Those of us who have it are quite happy with it. It's an fx lens, so you get the center sweet spot on a dx camera. I use it on my D800, too, and am still quite happy with it. It's just versatile and sharp.
Not one of her options.
But if she were asking for new lenses the 18-300 VR2 is the better choice for a DX camera. My wife uses the VR1 on her D5300 and loves it. I have the 28-300 and rarely use it any more. Bit it's image quality seems about the same as the 18-300 and it lacks the wider angle for a DX camera.
While some DX lenses work OK in FX mode on a D800, at least over a limited zoom range, the 18-300 doesn't. You need to use it in DX mode on an FX camera.