Pentax K-5 Silver K-5 K-5 manual - Page 82

80 3 Push down on the portion indicated in the illustration to retract the built-in flash. Basic Operations Using Red-eye Reduction Flash 3 "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, select D in B mode, or F or H in other modes.