In portraits taken indoors or in low light, my subjects eyes are unnaturally red. How can I prevent this from happening?
The effect known as red-eye occurs when the light emitted from the camera flash bounces off the back of the subjects retina. The red color is picked up from the blood vessels behind the eyes and displayed in the resulting image. To avoid or minimize red-eye when shooting in low light with the flash, use Red-Eye Reduction mode. In this mode, the flash fires a few bursts before the shot is actually taken. The bursts of light cause the pupils of your subjects eyes to contract, providing a smaller angle through which the reflected light can escape. The result is that the effect of the reflected light is less noticeable in your captured images. To enable Red-Eye Reduction mode, first turn the mode dial to the camera or hand icon, or to [SCN], and then press the flash mode button (lightning bolt icon). Press the Down arrow button to select the button with the eye icon. Press the [OK/FUNC] button to activate the mode. The eye icon will appear on the LCD when Red-Eye Reduction flash mode is ac