Using The Spot Metering - Pentax K-m/K2000 Operating Manual

Linking AF Point and AE during Multi-Segment
Metering
In [5. Link AF Point and AE] of the [A Custom Setting 1] menu (p.78),
you can link the exposure and AF point in the focusing area during
multi-segment metering. The default setting is [Off].
Off
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On
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Using the Center-Weighted Metering
Metering is weighted at the center of the screen.
Use this metering when you want to compensate
the exposure by experience, instead of leaving it
to the camera. The illustration shows that
sensitivity increases as the pattern height
increases (center). This mode does not
automatically compensate for backlit scenes.

Using the Spot Metering

With spot metering, brightness is measured
only within a limited area at the center of the
screen as shown in the illustration. You can
use this in combination with the AE lock
(p.105) when the subject is extremely small
and proper exposure is difficult to obtain.
Setting the Meter Operating Time
You can set the exposure metering time to 3 sec, 10 sec or 30 sec in
[3. Meter Operating Time] in the [A Custom Setting 1] menu (p.78).
The default setting is [10 sec].
Exposure is set separately from AF point.
Exposure is set in accordance with AF point.
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