Selecting The Metering Mode - Canon EOS 70D Instruction Manual

If Auto ISO is set, the ISO speed setting will change to suit the shutter speed
and aperture in order to obtain a standard exposure. Therefore, you may not
obtain the desired exposure effect.
In [z3: Auto Lighting Optimizer], if the checkmark <X> for [Disabled
in M or B modes] is removed, Auto Lighting Optimizer can be set in the
<a> and <F> modes (p.140).
When Auto ISO is set, you can press the <A> button to lock the ISO
speed.
If you press the <A> button and recompose the shot, you can see the
exposure level difference on the exposure level indicator (p.22, 23)
compared to when the <A> button was pressed.
q Selecting the Metering ModeN
You can select one of four methods to measure the subject brightness.
In Basic Zone modes, evaluative metering is set automatically.
1
Press the <q> button.
2
Select the metering mode.
While looking at the LCD panel, turn
the <6> or <5> dial.
q: Evaluative metering
w: Partial metering
r: Spot metering
e: Center-weighted average
q
Evaluative metering
This is a general-purpose metering mode suited
even for backlit subjects. The camera sets the
exposure automatically to suit the scene.
q Selecting the Metering ModeN
metering
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