Canon EOD 50D Instruction Manual page 37

Basic Operation
<
0
>
Using the Quick Control Dial for Selecting
Before using the <
0
>
dial, set the power switch to <....J
>.
After pressing a button, turn the
<0>
dial.
When you press a button, its function
remains selected for 6 seconds (
06 ).
During this time, you can turn the
<
0
>
dial to set the desired setting.
When the function turns off or if you
press the shutter button halfway, the
camera will be ready to shoot.
• Use this dial to select or set the white
balance, drive mode, flash exposure
compensation, AF point, etc.
(2) Tu rn the
<
0>
dial only.
While looking at the viewfinder or LCD
panel, turn the
<
0
>
dial to set the
desired setting.
• Use this dial to set the exposure
compensation amount, the aperture
setting for manual exposures, etc.
[lJ
You can also do step (1) when the power switch is set to
<ON>.
37
I