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

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When the mode dial is set to _ (Elash Off), the built_in flash Wi!l not POP uP
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 red-eye 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.

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