 BetterPhoto Member |
Red-Eye I have gotten a new digital camcorder that also takes still photos. I am taking some wonderful photos of family and such, but the one big problem that I am having and can't seem to solve is the red-eye. It has red eye reduction button. It also has an auto exposure button on it. I am not sure if that is helping or not. I still come out with red-eyes. What do I do? I have looked at my manual that came with my camera and it is not much help. I have taken some wonderful pictures with it. Please help. Thanks.
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John A. Lind |
Understanding red-eye will help in eliminating it. It is caused by light reflected by the retina in the back of the eye. The retinal area is packed with capillaries carrying blood to the rods and cones in the eye. The red color is the blood in the capillaries which have micro-thin walls. If a sufficient amount of light close enough to the camera lens enters the eye through a sufficiently dilated pupil, it will reflect off of the retina in the rear of the eye and back out the eye's pupil to the camera lens. A combination of three conditions is required for it to occur: sufficiently bright light source; the light source is close enough to the camera lens; and the eye's pupil is dilated wide enough. Eliminating red-eye requires eliminating one or more of these conditions: move the light source farther from the lens and/or bring the ambient light level up to constrict the pupils of the eye (and reduce the amount of light required from the camera flash). Very young children can be a particular problem; the pupils in their eyes do not constrict as much as in adults. Event photography (e.g., wedding receptions) in very low light levels combined with alcohol consumption (dilates pupils even wider) are also a problem. If you can, increase the ambient light level to reduce the light required from flash and constrict people's pupils more. Possibly more difficult depending on your camera is moving the flash farther above the camera lens (one of the reasons wedding photographers use a flash bracket). "Red-eye reduction" on a camera uses a series of flashes to help constrict pupils before the photograph is made. Sadly, it is just that, reduction, and does not work that well. It also irritates many people, delays shutter release by a second or more (missing a "decisive moment") and the "strobing" greatly increases risk of someone blinking when the shutter is released. Moving the flash farther above the camera lens works much, much better and gives better shadow control under most conditions. -- John
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