After two years of ownership I discovered the “Subject tracking” feature on my Z6 when I was exploring the autofocus modes with the 40/2 a few months ago, until then the Z6 was mainly used with manual focus lenses or single point AF for stationary product shots.
When talking about this feature recently with a fellow NG member it turned out he also was not aware of this very useful autofocus mode so thought it was a good idea to start a topic about it in case more of us are unaware of this autofocus mode on the Z6, Z7, Z6II, Z7II, etc.
On the Z6/7 this option is only available when the “Auto-area AF” area is active, on the MkII models it should also work with “Wide-area AF (L)” AF area. When the option becomes available the OK and Exit icons appear on the screen and viewfinder. To activate it simply press the OK button, point the square box in centre of the screen at something the camera needs to track, press and hold the AF-ON/release button in AF-C mode and recompose when necessary.
To make switching between Auto-area/face/eye AF and object/subject tracking more fluid I use the Fn1 button to toggle between the two AF modes instead of trying to find the small OK button with my thumb while looking through the viewfinder. With this setup I can pretty much shoot anything without going in the menus.
Steve Mattheis has made small video of how the tracking mode works and how to set it up as described above:
the
https://youtu.be/M9KFtf_xHYo