Olympus DP21-SAL Instructions Manual page 30

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Fig. 19
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Exposure Adjustment
REC AUTO mode
The exposure time set by AE (Auto Exposure) can be corrected (by up to
2 EV in 1/3 EV steps).
When the specimen is dark, +EV correction will extend the exposure time
and give an over-exposure type effect. When it is bright, the -EV correc-
tion will shorten the exposure time and give an under-exposure type
effect.
Press the cursor button
value. The setting can be checked on the following scale at the bottom
of the INFO display.
-2EV
}Switch off the MENU display before the exposure adjustment. If the MENU
display is shown, press the MENU button on the hand switch D21-HS to
hide it.
3 SPOT Metering Setting
REC AUTO mode
}When the observation target is dispersed in the image, the image may
become too bright or too dark due to the effect of the background. In
such a case, the problem may sometimes be improved by changing the
metering area.
}The center average metering is set normally.
· Center average metering: Photometry of the 30% area on the image
center.
· Spot metering: Photometry of the 1% area on the image center.
1. Press the SPOT button @ to switch the metering area between SPOT
and Average.
The INFO display shows the current setting.
2. The metering area can be displayed or hidden by setting in the MENU
display. When it is set to be hidden, it appears only when the SPOT
button is pressed but disappears in 3 sec.
@ or ² to set the exposure adjustment
(Example) +4/3EV
0 +2EV
Center average metering (30%)
Spot metering (1%)