ELNikkor wrote:
The beauty of cameras like the D850, D750, and other FX bodies is that they are 2 cameras in 1. You can use all of your DX VR lenses on them, as well as the FX lenses. Your image area for DX is automatically designated in the viewfinder. Often, the high-res of the FX is not that important, just the usable image is. The "Why buy a FX camera and put a DX lens?" argument is rather foolish, as you haven't thrown out the FX features, just added the DX versatility.
OK, but if you already have a great DX camera and DX lenses, and don't want to buy new lenses, why buy a FX camera?