Red eye reduction, What causes the red-eye phenomenon – Sony NEX-3 User Manual
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Red Eye Reduction
The flash strobes two or more times before shooting to reduce the red-eye phenomenon
when using the flash.
1 [Menu] t [Setup] t [Red Eye Reduction] t desired setting.
• Attach and raise the flash to use Red Eye Reduction.
• You cannot use [Red Eye Reduction] with [Smile Shutter].
• Red Eye Reduction may not produce the desired effects. It depends on individual differences and
conditions, such as distance to the subject, or if the subject looked away from the pre-strobe.
On
The flash always strobes to reduce the red-eye phenomenon.
Off
Does not use Red Eye Reduction.
Notes
z
What causes the red-eye phenomenon?
Pupils become dilated in dark environments. Flash light is reflected off the blood vessels at
the back of the eye (retina), causing the “red-eye” phenomenon.
Camera
Eye
Retina