Nikon Z fc N2016 Reference Manual page 398

･ Use only as required.
･ We recommend that you perform fine-tuning at a focus distance you
use frequently. If you perform focus-tuning at a short focus distance,
for example, you may find it less effective at longer distances.
Option
[AF fine-
tune]
[Fine-tune
and save
lens]
[Default]
B The setup menu: Camera setup
･ [On]: Turn AF fine-tuning on.
･ [Off]: Turn AF fine-tuning off.
Fine-tune focus for the current lens. Press 1 or 3 to highlight
items and press 4 or 2 to choose from values between +20
and -20.
･ The larger the fine-tuning value, the farther the focal point
is from the lens; the smaller the value, the closer the focal
point.
･ The display shows the current and previous values.
･ The camera can store values for up to 40 lens types.
･ If a lens for which values have already been saved is used,
the fine-tuning values will be overwritten.
Choose the fine-tuning values for lenses for which no values
have previously been saved using [Fine-tune and save lens].
Press 4 or 2 to choose from values between +20 and -20.
Description
398