B3: Center-Weighted Area; B4: Fine-Tune Optimal Exposure - Nikon Z 7 Reference Manual

b3: Center-Weighted Area

Choose the size of the area given the most weight in center-
weighted metering.

b4: Fine-Tune Optimal Exposure

Use this option to fine-tune the exposure
value selected by the camera. Exposure
can be fine-tuned separately for each
metering method by from +1 to −1 EV in
steps of /
1
6
D
Fine-Tuning Exposure
The exposure compensation (E) icon is not displayed when exposure
fine-tuning is in effect. The only way to determine how much exposure
has been altered is to view the amount in the fine-tuning menu.
256 Menu Guide > A Custom Settings
EV.
G button ➜ A (Custom Settings menu)
G button ➜ A (Custom Settings menu)