Red-eye reduction mode

Red-eye reduction mode. A mode that fires a preliminary flash to close the iris of the eye before firing the main flash to take the picture.
Red-eye. An effect that causes peoples eyes to look red in flash exposures.

Red-Eye Reduction Mode - A special flash mode whereby a pre-flash or a series of low-powered flashes are emitted before the main flash goes off to expose the picture. This causes the pupil in the human eye to close and helps eliminate red-eye.

Red-eye reduction mode. You'll often see photos of people with what's called "red eye." The light from a flash has entered through the subject's pupil and reflected off the back of the eye (the retina) and back out to the camera.

I've experimented with its different flash modes and I found that the Fill-In flash works better than the Automatic Flash or Red-Eye Reduction mode. Even in taking pictures indoors with even lighting, I use the Fill-In flash mode.

To overcome this, many cameras have a red-eye reduction mode, but it is, as the name suggests, only a reducer. It works by firing a pre flash to reduce the size of the pupils, and in doing so reduces the area of red.

Some cameras have an added red-eye reduction mode, though their solution seems a bit strange. When this camera mode is turned on, there are not one but two flashes for each picture. The first one is a pre-flash, half a second before the real one.

Some camera flashes have a red-eye reduction mode, which sends a series of smaller flashes before the exposure so that the subject's pupils are contracted during the actual flash.

Be sure to get a camera with red-eye reduction mode. This works with a pre-flash prior to the flash used for exposure and does reduce the red-eye effect often seen when photographing people indoors.

The other flash mode available is the red-eye reduction mode which we discussed earlier on the limitation of built-in flash. The default mode of most built-in flash is usually the auto mode, the camera will decide when it should fire the flash.

Red-eye is an effect caused by an electronic flash reflecting off of the human eye and making it look red. Red-eye reduction mode fires a preliminary flash to close the iris of the eye before firing the main flash to take the picture.

Red-eye reduction mode fires a pre-flash that is supposed contract the pupils of your subject's eyes thereby reducing the flash reflection in their eyes from actual flash exposure that immediately follows.

A way of reducing or eliminating the red-eye phenomenon. Some cameras offer a red-eye reduction mode that uses a preflash that causes the irises of the subjects' eyes to contract just before a second, stronger flash is used to take the picture.

as a red glow from the iris of the subject - caused by light reflecting off the retina. This can be corrected post-shoot using software, or the risk of it occurring in the first place can be reduced by using a flashgun's red-eye reduction mode.

See also: Reduction, Red-eye Reduction, Red-eye, Camera, Light