Canon EOS Rebel T1i Instruction Manual page 235

E: AF ModeN
S AF PointN
Set the lens focus mode switch to
<f>.
Press the <ZE> button.
Press the <U> key to select the
AF mode, then press <0>.
X
(One-Shot AF):
For still subjects
9
(AI Focus AF):
Switches the AF mode automatically
Z
(AI Servo AF):
For moving subjects
Press the <S> button.
Press the <S> key to select the
AF point.
While looking at the viewfinder,
you can select the AF point by
turning the <6> dial until the
desired AF point flashes in red.
Pressing <0> toggles the AF
point selection between the
center AF point and automatic AF
point selection.
235