Canon EOS-3 Instructions Manual page 53

The basic metering modes are evaluative, partial, spot, and
centerweighted averaging. Spot metering can be at the center of the
viewfinder or linked to the active focusing point. There is also multi-spot
metering. Select the metering mode which suits the subject or your
photographic intention.
Metering Modes
First set the <
necessary, also set the <
< >.
Evaluative metering
Partial metering
Spot metering
Centerweighted
averaging metering
> switch to <
> switch to
>. If
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