The D810 still improves significantly on this when used at ISO64.
The APS-C D7200 is also now superior to the D800 DRwise and may in fact be one of the best options for landscape considering the extended DoF its smaller sensor provides all other things being equal. Combined with a Sigma 35mm f1.4 it may be one of the best stitching solution available. Note to myself, need to consider this seriously.
Cheers,
Bernard
Bernard,
Have you compared the graphs for the D7200 and D800 on the DXOMark website?
At equal print size, the DR of the D7200 is approximately equal to that of the D800, but SNR at 18% grey is on average about one full stop worse than that of the D800, at all ISOs.
'Color sensitivity' and 'tonal range' values for the D7200 are also slightly worse than those for the D800.
However, I agree that in circumstances where specific combinations of shutter speed and DoF are critical for the desired result, for hand-held shots and/or moving subjects, then the advantage of being able to use a full stop wider aperture with the D7200, for same DoF, with consequent lower ISO at the same shutter speed, results in the D7200 having a DR advantage, and no disadvantage in respect of SNR at 18%, tonal range and color sensitivity.
Unfortunately, there will always be circumstances where the 36mp of the D800 will have a desired resolution advantage for some of us, and such circumstances will not likely be ideal for stitching multiple shots if shutter speed is a concern due to subject movement.
Nevertheless, the D7200 will have its own resolution advantages in circumstances where the crop factor increases equivalent focal length. On balance, the D7200 might be the better option, taking everything into consideration.