How does red eye in photographs work?

Kategorie: Wissen und Wissenschaft
Kanal: BrainStuff
Datum: 31. Juli 2015, 16:48
Stufe: B1-B2 (Mittelstufe)


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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.