Flash is required when there are low lighting conditions. But when trying to take a photo of human or animals then their eyes appear to be red with flash. This happens due to sudden enter of bright light enter into eyes and most of light is reflected by eyes. This reflected light is also captured by photo and eyes appear red. This is called Red Eye Effect.
Most of digital cameras have build in red-eye reduction mode which helps to remove red eye effect. What happens here is red eye reduction lamp fire when there is flash. This reduces the light reflecting back from the eyes and making them not appear red. Better results can be obtained when subject is looking right at the red-eye reduction lamp. Also, use some editing tools which help to reduce the red eye effect can be used.
Most of digital cameras have build in red-eye reduction mode which helps to remove red eye effect. What happens here is red eye reduction lamp fire when there is flash. This reduces the light reflecting back from the eyes and making them not appear red. Better results can be obtained when subject is looking right at the red-eye reduction lamp. Also, use some editing tools which help to reduce the red eye effect can be used.
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