The Red Eye – Cause and Prevention

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Have you ever wondered ‘what causes the Red-Eye in digital photographs?’

Here’s a couple of things you should know to understand it.

The real cause of the red eye is the flash of the camera. Red-eye occurs when light from the built-in flash of a camera bounces off the subject’s retinas and reflects back to the camera lens. The flashlight takes on the tint of the blood vessels in the eye, which causes the eyes to appear to be glowing red in the picture.

Red-eye can result from any camera with a built-in flash, not just a digital camera. It’s because a built-in flash is positioned very close to the camera lens. When people look into the lens, they’re also looking directly at the flash, which means that their retinas pick up and reflect almost all of the light from the flash. When you use an external flash head, you can position the flash farther from the lens and also angle the flash so that it’s not aimed directly at the eyes.

Yes, I agree we can’t avoid the flash specially when the natural light of the room is not bright enough. So what can be the remedy? Well, we’ve not much choice but to rely on the software that help edit digital photographs. Pretty much any digital photographic software will do the job.

And some caeras have RedEye reduction features also.

Some of the tactics I generally use to prevent red-eye are:

(a) Turn on as many lights as you can – especially in indoor photo-shoots. This helps to neutralise the light in the room with that of flash of the camera.

(b) If it’s daytime, try to place the subject near to a window where the sunlight is in direct contact with the subject. This also help prevent shadows been generated on the photograph.

(c) Finally, switch the flash to red-light reduction mode. This feature is present on most digital cameras. It’s good to read the manual before hand so that you’ll have a good understanding of your camera. Remember it’s always good to learn the ‘rules’ before you play with the toy…

Well then good luck with your ‘click’ … ‘clicks’..

The following site is a good tutor for the beginners who are paranoid about the red-eye syndrome to test & try. Its simple and easy to follow steps are very encouraging to try & rectifying the error youself.

Some tips to remove Red-Eye from digital phtotos