Thursday, October 27, 2011

Why Does Redeye Occur In Photos

Take a couple steps back from your subject to alleviate red eye


Red eye, also known as "devil eyes," occurs in photos because of poor camera design, low light conditions, subjects staring at the camera and improper camera positioning. Red eye is more pronounced in children and people with either light eye color or blond or light-red hair.


Poor camera design


Many point and shoot cameras have a fixed flash. This can cause red eye if you are distant from your subject. Raising the flash away from the lens prevents or corrects red eye. Unfortunately this can't be done with point and shoot cameras.


Low light conditions


An eye's iris opens wider in low light conditions. Red eye occurs when the flash bounces off the retina's blood vessels. To alleviate this, turn on more lights in the area.


Staring


Red eye also occurs when your subject stares at the flash. Either ask your subject not to look at the camera or stand near a light source. The light will force the iris to contract.


Improper positioning


Taking photos directly in front of your subject increases the possibility for red eye. Try standing at an angle and between 3 to 5 feet from your subject.







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