Canon EOS Rebel T1i Instruction Manual page 234

Z: ISO SpeedN
i Drive ModeN
234
Press the <Z> button.
Turn the <6> dial or press the
<U> key to select the ISO
speed.
When "AUTO" is selected, the
ISO speed is set automatically.
When you press the shutter
button halfway, the ISO speed
setting will be displayed.
Press the <YiQ> button.
Press the <U> key to select the
drive mode, then press <0>.
u: Single shooting
i: Continuous shooting
Q: Self-timer/Remote control*
l: Self-timer:2 sec
q: Self-timer:Continuous*
* The <Q> and <q> drive modes
can be selected in all shooting
modes.