Canon EOS A2E - Manual (Page 58)

(Evaluative metering)
Use this mode for general subjects. The ex­
posure setting is based on the focusing point
in usé, taking into account such factors as
subject size, position, overall lighting level,
front lighting and back lighting.
ra (Spot metering)
This mode limits the metering area to the
central part of the viewfinder (approx. 3.5% of
the image area). Use this mode when there is
a big difference in brightness between the
main subject and the background, or for sub­
jects that require precise measurement,
such as close-up photography.
n (Center-weighted average metering)
Metering is averaged over the entire scene
with emphasis placed on the center area.
1) Press the metering mode button.
2) Operate the main dial so the desired
metering mode indicator appears in the
LCD panel.