Canon EOS 20D Instruction Manual

Page of 168
Using the Built-in Flash
94
When flash is used in a low-light environment, the subject’s eyes may 
look red in the image. “Red eye” happens when the light from the flash 
reflects off the retina of the eyes. The camera’s red-eye reduction 
feature turns on the red-eye reduction lamp to shine a gentle light into 
the subject’s eyes to narrow the pupil diameter or iris. A smaller pupil 
reduces the chances of red eye from occurring. Red-eye reduction can 
be set in any shooting mode except <
3> <5> <7>.
1
Select [Red-eye On/Off].
¡
Turn the <
5> dial to select [z Red-
eye On/Off], then press <
0>.
2
Select [On].
¡
Turn the <
5> dial to select [On],
then press <
0>.
Using Red-eye Reduction
¡
When you press the shutter button down 
halfway, the red-eye reduction lamp 
indicator appears in the viewfinder.
¡
Red-eye reduction will not work unless the 
subject looks at the red-eye reduction lamp. Tell 
the subject to look at the lamp.
¡
To increase the effectiveness of red-eye 
reduction, press the shutter button down fully 
after the red-eye reduction lamp (which lights for 
approximately 1.5 seconds) indicator goes off.
¡
You can shoot anytime by pressing the shutter button down fully, even if 
the red-eye reduction lamp is still on.
¡
The effectiveness of red-eye reduction varies from subject to subject.
¡
Red-eye reduction is more effective in brighter rooms or when the 
camera is closer to the subject.
Red-eye 
reduction lamp
On indicator