CEJ wrote:
TheD810, D750 and the D610 I have picked as a possible up grade to M my body collection because you can use DX and FX lens on those cameras. That way I don't have to spend a lot of money up frount, being able to use the bag of DX lens that I have, till I cane save up for FX lens.
I did a similar thing although bought an FX 28-300 while I still had a D7000 planning ahead.
Note that the D8xx has five different picture areas you can choose from. All your DX lenses will work in DX mode. Some will work OK in full FX mode for a range of zoom. Others will work fine or over an expanded zoom range in the two intermediate picture area modes. You need to test each lens on each picture area when you get the camera.
(PS: The menu and manual only show four picture area formats. The fifth, 9x16, shows up when you take still shots in Live View.)