Canon EOS 620 - Manual (Page 78)

5. Partial Metering
This camera has an evaluative metering function
\«hich allows you to obtain the correct exposure
without exposure compensation in normal backlit
photography (see p. 18). Use the partial metering
mode, however, for stage photography where
there is a big difference in brightness between the
main subject and the background, and when you
want to control the exposure.
• The partial metering mode can be used
regardless of the camera's mode, except
when the main switch is set to the full auto
position (O)
• The partial metering area is approximately
6.5% of the picture area.
• The AE lock mechanism automatically works
in the partial metering mode.
AE lock:
The original exposure value remains locked
as long as the shutter button is pressed
halfway, so even if you recompose the pic­
ture, correct exposure on the main subject
will not be affected by changes in lighting
conditions.
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