HP R818 - Manual (Page 48)

48 HP Photosmart R817/R818 User’s Manual
NOTE: The flash is not available in Panorama, Sunset,
Document, or Theatre shooting modes, with the Burst
setting, nor while recording video clips.
Red Eye
The red-eye phenomenon is caused by light from the flash
reflecting off the subjects’ eyes, which sometimes makes a
human's eyes appear red or an animal’s eyes appear green
or white in the captured image. When you use a flash setting
with red-eye reduction, the camera flashes quickly up to three
times to minimize the subject’s pupils, thus reducing the effect
of the red-eye phenomenon, before the camera uses the main
flash. It will take longer to take a picture using red-eye
reduction, because the shutter is delayed for the additional
flashes. Therefore, make sure your subjects wait for the
additional flashes.
TIP: You can also remove red eyes in pictures you have
already taken (see page 91).