2007-03-06 04:55:20 · 5 answers · asked by Anthony 2 in Consumer Electronics ➔ Cameras
The reason some cameras create red-eye has more to do with the size of the camera. The closer the flash is to the lens, the more likely you'll get red-eye. The red is the blood vessels on the back of the eye reflecting back to the camera's lens.
Red-eye is a product of smaller cameras. Ever notice how professional photographers (at weddings for example) have their camera flashes mounted on an extension or high above the lens ... that's to avoid the refelcted redness on the back of the eyes.
Red-eye reduction usually shines or blinks a light into the subjects eyes which causes their iris to react by getting smaller. This reduces red-eye, but doesn't eliminate it.
2007-03-06 10:10:39 · answer #1 · answered by Den B7 7 · 88⤊ 7⤋
dmc177 is correct. Some cameras have red reduction by emitting some pre-flash to make your retinas close smaller before actually taking pictures.
2007-03-06 13:29:31 · answer #2 · answered by Henry 4 · 11⤊ 14⤋
The reason it looks red is because there's a rich bed of blood vessels that line the inside of the eye and supply the retina. So it's that blood which is what you're really looking at.
2007-03-06 13:03:07 · answer #3 · answered by dmc177 4 · 19⤊ 13⤋
The retina ..
2007-03-06 16:11:51 · answer #4 · answered by Paula 7 · 7⤊ 31⤋
I think its because of the "flash" and that makes red eye...
2007-03-06 13:00:30 · answer #5 · answered by kallieray 3 · 9⤊ 38⤋