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Taking Photographs—Exposure
Autoexposure Lock
When center-weighted metering is used, an area in the center of the frame
is assigned the greatest weight when determining exposure. Similarly, when
spot metering is used, exposure is based upon lighting conditions in the se-
lected focus area. If the subject is not in the metered area when the picture
is taken, exposure will be based on lighting conditions in the back ground,
and the main sub ject may be under- or over-exposed. To prevent this, use
autoexposure lock:
1
Select center-weight ed or spot metering. If
us ing center-weight ed me ter ing, select the
cen ter focus area with the multi selector (
74).
2
Position the sub ject in the selected focus area and press the shutter-re-
lease button halfway. With the shut ter-release button pressed halfway
and the subject po si tioned in the fo cus area, press the AE-L/AF-L button
to lock exposure (and focus, except in man u al focus mode). Confi rm that
the in-focus in di ca tor (●) appears in the viewfi nder.
While ex po sure lock is in effect, an AE-L in di ca tor will ap pear in the
viewfi nder.