Nikon d3s User Manual (en)

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116
Z
Metering
Metering determines how the camera sets exposure. The 
following options are available:
Method
Description
a
3D color 
matrix II
Recommended in most situations. Camera meters a wide 
area of the frame and sets exposure according to distribution 
of brightness, color, distance, and composition for natural 
results.
Z
Center-
weighted
Camera meters entire frame but 
assigns greatest weight to 12-mm 
circle in center of viewfinder (if CPU 
lens is attached, area can be selected 
using Custom Setting b5, Center-
weighted area
0 304
1
). Classic 
meter for portraits.
2
b
Spot
Camera meters circle 4 mm (0.16 in.) 
in diameter (approximately 1.5% of 
frame). Circle is centered on current 
focus point, making it possible to 
meter off-center subjects (if non-CPU 
lens is used or if auto-area AF is in 
effect (
0 92), camera will meter 
center focus point). Ensures that 
subject will be correctly exposed, 
even when background is much 
brighter or darker.
2
1 When non-CPU lens is attached, average for entire frame will be used if 
Average is selected for Custom Setting b5; otherwise, center-weighted 
metering for non-CPU lenses will use 12-mm circle in center of viewfinder, 
regardless of setting selected for Non-CPU lens data.
2 For improved precision with non-CPU lenses, specify lens focal length and 
maximum aperture in Non-CPU lens data menu (
0 215).
3 Metered area is not actually displayed in viewfinder.
Center-weighted 
area
3
Spot metering 
area
3