So pixel shift is distinguished from current focus shift of D850 and Z7 by taking multiple images by shifting pixel and merging two or more images taken consecutively by the camera without changing focus points during the image run.
If I recall correctly, it was Hasselblad who introduced mutli-shot technology in its H4 series cameras many years ago- these cameras are prohibitively expensive, but results can be astonishing for detail (i.e. jewelry and artwork). The combined files can be huge. It seems it could be applicable to static subjects of any kind.
I have not used either technology.
Does anyone want it, need it, and should Nikon consider introducing it along with the focus shift. Has anyone used both and can provide thoughts about which may be more useful and why. Panasonic introduced it in its S1R camera.
Is there any tech on the horizon that would obviate need for this? I perhaps incorrectly drew a conclusion from two separate on-line interviews that Leica is working on technology which would eliminate the need for this tech.