Nikon 25235 User Manual - Page 71

Exposure, Metering

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Reference-Exposure Exposure Metering The metering method determines how the camera sets exposure: Method Description 1,005-pixel RGB sensor sets exposure based on variety of information from all areas of frame. With type G or D lens, camera uses 3D color matrix metering II for natural results even when frame is dominated by bright (white or yellow) 3D color or dark (black or dark green) colors. With other CPU lenses, 3D range informamatrix II/ tion is not included; instead, camera uses color matrix metering II. Color matrix Color metering is available when focal length and maximum aperture of non-CPU lens matrix II/ are specified using Non-CPU Lens Data item in shooting menu ( 93; center- Color weighted metering is used if focal length or aperture is not specified). Matrix matrix metering will not produce desired results with autoexposure lock ( 70) or ex- posure compensation ( 72), but is recommended in most other situations. Camera meters entire frame but assigns greatest weight to area in center of frame 8 mm (0.31 in.) in diameter, shown by corresponding 8-mm reference Center- circle in viewfinder. Classic meter for portraits; recommended when using filweighted ters with an exposure factor (filter factor) over 1 × ( 181).* Camera meters circle 3 mm (0.12 in.) in diameter (approximately 2.0% of frame). Circle is centered on current focus area (in group dynamic AF, on center focus area of current group; 54), making it possible to meter off-center subjects (if Spot non-CPU lens is used or if dynamic-area AF with closest subject priority is in effect, camera will meter center focus area). Ensures that subject will be correctly exposed, even when background is much brighter or darker.* * For improved precision with non-CPU lenses, specify lens focal length and maximum aperture in Non-CPU Lens Data menu ( 93). Before shooting, rotate the metering selector to choose a method suited to the composition and lighting conditions, and confirm your selection in the viewfinder. b6-Center Weight ( 155) This option controls the size of the area assigned the greatest weight in center-weighted metering. b7-Fine Tune Exposure ( 156) Optimal exposure can be fine-tuned separately for each metering method (note that the exposure compensation icon is not displayed when exposure is fine-tuned). 61

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61
Reference—Exposure
Metering
The metering method determines how the camera sets exposure:
Method
Description
3D color
matrix II/
Color
matrix II/
Color
matrix
1,005-pixel RGB sensor sets exposure based on variety of information from all
areas of frame.
With type G or D lens, camera uses
3D color matrix metering II
for natural results even when frame is dominated by bright (white or yellow)
or dark (black or dark green) colors.
With other CPU lenses, 3D range informa-
tion is not included; instead, camera uses
color matrix metering II
.
Color matrix
metering
is available when focal length and maximum aperture of non-CPU lens
are specified using
Non-CPU Lens Data
item in shooting menu (
93; center-
weighted metering is used if focal length or aperture is not specified).
Matrix
metering will not produce desired results with autoexposure lock (
70) or ex-
posure compensation (
72), but is recommended in most other situations.
Center-
weighted
Camera meters entire frame but assigns greatest weight to area in center of
frame 8 mm (0.31 in.) in diameter, shown by corresponding 8-mm reference
circle in viewfinder.
Classic meter for portraits; recommended when using fil-
ters with an exposure factor (filter factor) over 1 × (
181).
*
Spot
Camera meters circle 3 mm (0.12 in.) in diameter (approximately 2.0% of frame).
Circle is centered on current focus area (in group dynamic AF, on center focus
area of current group;
54), making it possible to meter off-center subjects (if
non-CPU lens is used or if dynamic-area AF with closest subject priority is in ef-
fect, camera will meter center focus area).
Ensures that subject will be correctly
exposed, even when background is much brighter or darker.
*
* For improved precision with non-CPU lenses, specify lens focal length and maximum
aperture in
Non-CPU Lens Data
menu (
93).
Before shooting, rotate the metering selector to
choose a method suited to the composition and
lighting conditions, and confirm your selection in the
viewfinder.
Exposure
b6—Center Weight (
155)
This option controls the size of the area assigned the greatest weight in center-weighted
metering.
b7—Fine Tune Exposure (
156)
Optimal exposure can be fine-tuned separately for each metering method (note that the
exposure compensation icon is not displayed when exposure is fine-tuned).