Nikon 25412 D80 User's Manual - Page 64

Exposure, Metering

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Exposure Metering Controls used: button + main command dial The metering method determines how the camera sets exposure. The following options are available: Method Description Recommended in most situations. Camera meters a wide area of the frame 3D Color Matrix II and sets exposure according to distribution of brightness, color, distance, and composition for natural results. Camera meters entire frame but assigns greatest weight to center area. Center-weighted Classic meter for portraits; recommended when using filters with an expo- sure factor (filter factor) over 1 × ( 122). Camera meters circle 3.5 mm (0.14 in.) in diameter (approximately 2.5 % of frame). Circle is centered on current focus area, making it possible to meter Spot off-center subjects (if non-CPU lens is used or if Auto-area AF is selected for Custom Setting 2 ( 87), camera will meter center focus area). Ensures that subject will be correctly exposed, even when background is much brighter or darker. To choose a metering method, press the button and rotate the main command dial until the desired mode is displayed. 12-Center Weight ( 90) This option controls the size of the area assigned the greatest weight in center-weighted metering. The default is 8mm (0.31in.). 3D Color Matrix II Metering In matrix metering, exposure is set using a 420-segment RGB sensor. Use a type G or D lens for results that include range information (3D color matrix metering II; 117). With other CPU lenses, 3D range information is not included (color matrix metering II). 52 Reference: P, S, A, and M Modes / Exposure

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52
Reference: P, S, A, and M Modes / Exposure
Exposure
Metering
Controls used
:
button + main command dial
The metering method determines how the camera sets exposure.
The following options
are available:
Method
Description
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.
Center-weighted
Camera meters entire frame but assigns greatest weight to center area.
Classic meter for portraits; recommended when using filters with an expo-
sure factor (filter factor) over 1 × (
122).
Spot
Camera meters circle 3.5 mm (0.14 in.) in diameter (approximately 2.5 % of
frame).
Circle is centered on current focus area, making it possible to meter
off-center subjects (if non-CPU lens is used or if
Auto-area AF
is selected
for Custom Setting 2 (
87), camera will meter center focus area).
Ensures
that subject will be correctly exposed, even when background is much
brighter or darker.
To choose a metering method, press the
button and rotate the main command dial until
the desired mode is displayed.
12—Center Weight (
90)
This option controls the size of the area assigned the greatest weight in center-weighted metering.
The default is 8mm (0.31in.).
3D Color Matrix II Metering
In matrix metering, exposure is set using a 420-segment RGB sensor.
Use a type G or D lens for results
that include range information (3D color matrix metering II;
117).
With other CPU lenses, 3D range
information is not included (color matrix metering II).
Exposure