When [Center-weighted metering] is selected, the camera assigns the greatest weight to an area in the center of the shooting display when setting exposure. Custom Setting b3 [Center-weighted area] is used to choose the size of the area given the greatest weight when [Center-weighted metering] is selected.

A Custom Settings: Fine-Tuning Camera Settings

a: Autofocus

b: Metering/Exposure

c: Timers/AE Lock

d: Shooting/Display

e: Bracketing/Flash

f: Controls

g: Movie