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Home > BrainStuff > How does red eye in photographs work?
Podcast: BrainStuff
Episode:

How does red eye in photographs work?
Category: Science & Medicine
Duration: 00:02:24
Publish Date: 2015-07-31 14:48:17
Description:

The flash of a camera is bright enough to cause a reflection off the human retina -- the red we see in these photos comes from the blood vessels in the eye. Learn more about red eyes and cameras in this HowStuffWorks podcast.

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