Nikon has released firmware version 2.0 for the Z6 and Z7 cameras, which adds Eye-Detection autofocus and extended low-light AF detection range.
Nikon Z6 and Z7 firmware version 2.0’s Eye-Detection AF feature automatically detects and focuses on human eyes in the cameras’ auto-area AF mode (AF-S, AF-C) and focuses on them.
In a group setting, the Eye-Detection AF mode will lock on one person’s eye, and then you can use the multi-selector to switch between eyes and people.
Nikon has also extended the low-light AF detection range for both stills and video from −1 EV to −2 EV on the Z7, and from −2 EV to −3.5 EV on the Z6.
When using the Z6’s low-light AF mode, the available low-light AF detection range now extends from −4 EV to −6 EV, meaning the camera can focus in even darker conditions. The low-light AF detection range will not exceed −4 EV with the Z7.
Nikon has also added support for auto-exposure tracking in continuous high-speed (extended) mode. This allows the two cameras to track exposure just like it does focus in AF Tracking mode.