Red eye – Nikon SPEEDLIGHT SB-16 User Manual
Page 90
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RED EYE”
"Red eye" is a phenomenon in flash photography where
the center portions of the subject's eyes appear as bright
red orbs in color photographs (or white in black and white
pictures). This is a result of the light from the flash illumi
nating the retina directly. If the subject looks straight into
the lens and there is little or no ambient light, the pupil is
wide open, making the retina clearly visible in the picture.
you can take any or all of the follow-
To avoid “red eye,"
ing precautions:
1. Ask the subject not to look directly into the lens when
the picture is taken.
2. Remove the flash unit from the camera and hold it as
far away as possible from the camera by using a sync
cord.
3. Increase the room’s overall illumination to reduce the
opening of the subject’s pupils.
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