I post too Much on Here!!
- Mar 25, 2011
Yes, The Nikon Mirrorless Z6 and Z7 have AFMA, so there is a reason, it may be there for adapted lenses, or it may be there because its needed due to focusing errors per lens. Very little is known in actuality about the inner workings of the AF systems in Mirrorless cameras, there are different implementations and designs, all we know is the hype and general PR information.I DL'd the Z7 manual from Nikon's website and AF Fine tuning is on page 297. The values for 30 lenses can be stored in camera.
I'm sure that manufacturers are not going to make the total story public, but we can test our cameras and determine how accurate and how much variability to expect in the autofocus.