New firmware updates have been released for Nikon Z5, Z6, and Z7 mirrorless cameras. However, you may want to wait with the update if you shoot the Z6 or Z7. Nikon has issued a warning reading that the 3.10 and 3.11 firmware versions will mess up your autofocus fine-tune.
“An issue has been identified in firmware versions 3.10 and 3.11 in which fine-tuning values selected for AF fine-tune > Saved value are not correctly applied when pictures are taken,” Nikon writes and apologizes. In other words, if you use AF fine-tune settings in-camera to calibrate your lens, it won’t work properly and your photos will be out of focus. Nikon says that fix is on the way and you’ll be able to get it via the Download Center once it’s available. However, there’s no word on when it’s going to happen.
If you haven’t updated the firmware, perhaps you’ll want to wait a while. You can follow further notices from Nikon here for the Z6 and here for the Z7. In case you have already updated the firmware to version 3.11, you may want to use manual focus with those lenses that require AF fine-tuning until the problem is solved.
[via Nikon Rumors]