james.liam
Well-known
The advantages are: 1. video 2. video 3. improved focusing of fast lenses in low light 4. video.
Diminishing few for whom these attributes merit the upgrade from the D810.
As a one-time owner of 14 AIS lenses, one of my sore points is that Nikon took some pride in maintaining backward compatibility for MF lenses (Zeiss thus included) and then left no way to quickly, effectively and reliably focus them without Live View.