Using Red-Eye Reduction Flash - Pentax K-R Operating Manual

When the mode dial is Set to _ (Flash Off), the built_in flash Will not POPUP
even if the _.UP!_ button is pressed:
Using red-eye reduction flash
"Red-eye" is the phenomenon where eyes look reddish in
photographs taken in dark environments with a flash. This is caused
by the reflection of the electronic flash in the retina of the eye.
Red-eye occurs because pupils are dilated in dark environments.
This phenomenon cannot be averted but the following measures can
be used to combat it.
• Brighten the surroundings when shooting.
• Set to wide angle and move closer to the subject if a zoom lens
is in use.
• Use a flash that supports red-eye reduction.
• Position the flash as far away from the camera as possible when
using an external flash.
The red-eye reduction function on this camera reduces a red-eye
effect by discharging the flash twice. With the red-eye reduction
function, the pre-flash is discharged just before the shutter is
released. This reduces pupil dilation. The main flash is then
discharged while the pupils are smaller, reducing the red-eye effect.
To use the red-eye reduction function in Picture mode or SCN (Scene)
mode, select {_> or _.®. Set to _.® or _. in other modes.