Canon EOS 5 - Manual (Page 63)

Red-eye Reduction Function
The subject’s eyes may appear red in flash
photos due to a phenomenon called “red
eye,” caused by light reflecting from the re­
tina.
When the red-eye reduction function is set
and the shutter button is pressed halfway,
the red-eye reduction lamp lights to illumi­
nate the subject before the flash fires to re­
duce the size of the subject’s pupils and mi­
nimize the chance of red eye. Red-eye re­
duction can be set in creative zone modes
and in Full Auto ( D ), Portrait ( 9 ) and
Close-up ( ) image zone modes.
• Although setting is possible, red-eye re­
duction will not function in Sports ( )
and Landscape ( U ) modes.