Selecting The Metering Method - Pentax K20D User Manual

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Selecting the Metering Method

Choose the part of the screen to use for measuring brightness and
determining exposure. L (Multi-segment metering), M (Center-weighted
metering) or N (Spot metering) mode can be selected. The factory default
setting is L (Multi-segment metering).
L Multi-segment
Center-
M
weighted
N Spot Metering
4
Set with the metering mode lever. (p.19)
Using the Multi-Segment Metering
The scene in the viewfinder is metered in
16 different zones as shown in the
illustration when using the multi-segment
metering. Even in backlit locations, this
mode automatically determines what level
of brightness is in which portion and
automatically adjusts exposure.
The center-weighted metering mode is automatically set even if you select the
multi-segment metering mode when using a lens other than a DA, D FA, FA J,
FA, F or A lens, or when lens aperture ring is set at other than s. (Can only be
used if permission is set in [36. Using aperture ring] (p.75) in the [A Custom
Setting] menu.)
Segments the viewfinder in 16 parts, meters each
portion and determines the appropriate exposure.
Measures the entire viewfinder with an emphasis on the
center and determines the exposure.
Measures only the center of the viewfinder and
determines exposure.