Nikon D90 Betriebsanweisung
87
t
Exposure
Metering
The metering method determines how the camera sets exposure. The following
options are available:
options are available:
To choose a metering method, press the
Z button and rotate the main command
dial until the desired mode is displayed.
Z button and rotate the main command
dial until the desired mode is displayed.
A
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; pg. 228). With other CPU
lenses, 3D range information is not included (color matrix metering II).
results that include range information (3D color matrix metering II; pg. 228). With other CPU
lenses, 3D range information is not included (color matrix metering II).
Method
Description
a
3D color
matrix II
matrix II
Recommended in most situations; selected automatically in auto and scene
modes. Camera meters a wide area of the frame and sets exposure according
to distribution of brightness, color, distance, and composition for natural
results.
modes. 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
weighted
Camera meters entire frame but assigns greatest weight to center area
(defaults to 8-mm circle in center of frame; can be selected using Custom
Setting b3, Center-weighted area, pg. 178). Classic meter for portraits;
recommended when using filters with an exposure factor (filter factor) over 1×
(pg. 240).
(defaults to 8-mm circle in center of frame; can be selected using Custom
Setting b3, Center-weighted area, pg. 178). Classic meter for portraits;
recommended when using filters with an exposure factor (filter factor) over 1×
(pg. 240).
b Spot
Camera meters circle 3.5mm (0.14in.) in diameter (approximately 2.5% 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 is selected for AF-
area mode as described on page 173, camera will meter center focus point).
Ensures that subject will be correctly exposed, even when background is much
brighter or darker.
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 is selected for AF-
area mode as described on page 173, camera will meter center focus point).
Ensures that subject will be correctly exposed, even when background is much
brighter or darker.
Z button
Main command dial