68
Metering
Normally, the matrix metering system will provide the
optimum exposure for your shot. However, you can
choose from 3 metering modes for shots where you want
to select a different exposure level (AE lock or exposure
compensation) or for particular scenes (such as backlit
shots or shots with very strong contrast).
Turn the metering selector to desired metering system.
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 information is not
included; instead, camera uses color matrix metering II.
Color matrix metering is available when a non-CPU lens
is attached and if the focal length and maximum aperture
of the lens are specified for [NON-CPU LENS DATA]
under [ MISC.] in the [SET UP] menu (➝p.121; the
center-weighted metering is used if focal length or
aperture is not specified).
• For AE lock (➝p.69) or Exposure compensation
(➝p.76), the Spot metering is recommended.
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.
MEMO
The metering diameter can be changed by the [CENTER-
WEIGHT AREA] setting under [SEXPOSURE] in the
[SET UP] menu. Also, the average metering value of the
entire frame is available (➝p.157).
Camera meters circle 3 mm (0.12 in.) in diameter
(approximately 2.0% of frame). Ensures that subject will
be correctly exposed, even when back ground is much
brighter or darker.
• Circle is centered on current focus area (in group
dynamic AF, on center focus area of current group;
➝p.56), 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 effect, camera will meter
center focus area).
MEMO
• For improved precision with non-CPU lenses, specify
lens focal length and maximum aperture in [NON-CPU
LENS DATA] under [ MISC.] in the [SET UP] menu.
• When using non-CPU lens, center-weighted metering is
used if focal length or aperture is not specified in [NON-
CPU LENS DATA] under [ MISC.] in the [SET UP]
menu.
• Center-weighted is recommended when using filters
with an exposure factor (filter factor) over 1x.