Center-Weighted Metering; Spot Metering - Nikon F5 Instruction Manual

Center-Weighted Metering

With approximately 75% of the meter's sensitivity concentrated
on the 12mm-dia. circle within the viewfinder and 25% outside
this circle, this meter becomes useful in situations where you
want to base exposure on a specific area in the scene. In auto
exposure mode, to measure the brightness of the picture's off-
center portion, use the camera's AE-L/AF-L button (see pages
72 and 73).
In Center-Weighted Metering, the area
that concentrates 75% of the meter's
sensitivity can be changed to 8mm-dia., 15mm-dia.,
20mm-dia. circle or average on entire viewfinder using
Custom Setting #14. See page 89.
50

Spot Metering

Nearly 100% of the meter's sensitivity is concentrated on the
4mm-dia. area (approx. 1.5% of entire frame) within the
selected focus area of the viewfinder. (6mm-dia. area or approx.
3.3% of entire frame with focusing screens other than EC-B/EC-
E-type.) Use this meter for highly selective exposure control—
achieving the best results requires experience.
When Spot Metering is selected, shifting focus area also
shifts Spot Metering area to corresponding position (with
EC-B/EC-E focusing screen only).