B3: Matrix Metering; B4: Center-Weighted Area - Nikon D780 Reference Manual

b3: Matrix Metering

Choose whether [Matrix metering] assigns priority to faces
detected by the camera. This setting applies only during
viewfinder photography.
Option
[Face
U
detection on]
[Face
V
detection off]

b4: Center-Weighted Area

When [Center-weighted metering] is selected, the camera
assigns the greatest weight to an area in the center of the
viewfinder when setting exposure. Custom Setting b4 [Center-
weighted area] is used to choose the size of the area given the
greatest weight when [Center-weighted metering] is selected.
•
If a non-CPU or AF-S Fisheye NIKKOR 8–15mm f/3.5–4.5E ED
lens is attached, the size of the area is fixed at φ12 mm.
G button U A Custom Settings menu
Matrix metering assigns priority to faces
detected by the camera.
Matrix metering does not assign priority to faces
detected by the camera.
G button U A Custom Settings menu
Menu Guide > A Custom Settings
Description
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