This video is designed to help you understand the Auto Focus system used in the Nikon Z7 Nikon Z6 and Nikon Z50 Could also be applied to the D780 in live view only.
It's a very long video so I have added time links below if you want to watch this video multiple times.
This video will cover
The different focus modes 02:25
Wide area - S
Wide area - L
Auto area and subject tracking
Why the Autofocus Box does not go green 19:22
Example images taken before FW 3.0 20:44
Why I use the Autofocus modes I do for some of my photography.
Example images taken after FW 3.0 38:40
Most shots taken with Autoarea AF and some examples why I would need to change away from Autoarea.
Talk through the Custom settings Autofocus Menu 46:20
Talk through every option in the menu that can affect autofocus performance and how those options affect the camera.