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Yes, It's the camera flash bouncing off the red blood vessels and red tissue in the back of our eye
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∙ 12y ago
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What is a camera flash bracket used for?
When wanting a quality image from a camera, professional photographers often use a flash bracket. The bracket has a flash that is not built directly in the camera and it keeps the images from having the red-eye effect.
Can I eliminate red eye with the Fujiflim FinePix camera?
Yes, red eye can indeed be eliminated with that camera.
What are 3 modes in flash?
Auto flash, Red Eye flash, and no flash
Information about does the eye color affect the red eye in a photograph?
It's caused by the reflection of the color of the Retina.... The retina is red so when the flash from a camera goes all the way to the back of the eye it some of it bounces back and reflects the color of the retina...
How does red eye happen on a camera?
"If an eye had absorbed all light, then this wouldn't happen. In fact, if an eye had been theoretically flawless, the red eye effect would not have existed at all. What happens when you see the red eyes on pictures, is that the flash is reflected in someone's eye. The reflection is red because of all the blood vessels inside the eye." -http://photocritic.org/red-eye-removal-reduction/
Why your toy poodle eyes has red eye shine at night?
The red shine is due to light reflecting from the dog's retina, which is reddish brown due to the blood vessels. It is the same effect that gives people 'red eye' from the camera flash, in a photograph.
Why do eyes appear red in photographs sometimes?
I Think its because the fflash can reflect of the persons eye and back into the lense..? Not 100% sure though, hope this helps That's correct!
You sometimes appear in photographs with red eyes why?
You use a flash to take a photograph because there isn't enough light to take the picture without one. Because the room is fairly dim, the eyes of the subjects are dilated; the pupils are large, to let in lots of light. The light receptors on the retina of the eye are very well provided with capillaries, the tiny blood vessels that provide blood - and oxygen - to your eyes. (One of the symptoms of hypoxia, or lack of oxygen to the brain, is your sight starting to fade.) When you take a flash photo, especially if the flash is built into the camera, the light from the flash goes into the eye, and hits the retina. Because the retina is mostly red blood vessels, the red light is reflected while the other colors are absorbed. So the red light bounces off the retina of your subjects' eyes, and back to your camera. Presto! Red eyes! You can reduce the "red eye" effect by having the flash several inches away from the camera lens. The red will still be reflected, but it won't be reflected straight back at the camera; the reflection will bounce out to someplace away from the camera, and it won't be as noticeable.
Does green eyes in a photo mean cataracts?
The effect has nothing to do with cataracts or any other malfunction of the eye. It is simply a matter of optics. Green eye or red eye is caused by the light from the flash reflecting back from blood vessels in the back of the eye. The color changes when the angle changes. It is not unusual to see one green and one red eye. The effect is worst in dim light (when you naturally want to use flash) because the pupil is dilated (expanded) more in dim light and more light enters the eye. It is caused by having the camera's flash too close to the lens, and can be minimized by using the "red eye" setting for the flash, if available. Turning on more lights in a room can help, too, as can using a lighting source that is placed away from the camera.
How do you get red eyes on photos?
The only place on the body where you can directly observe blood vessels is on the retina at the backs of our eyes. Your doctor uses an ophthalmoscope for this purpose. When you are looking toward a camera at the time the flash goes off, the eyes don't have time enough to adjust to the intensity of the light (unless the standard red-eye prevention pre-flash happens), the iris remains open and the bright light flows into the eye. It then reflects off the back of the eye and right back out. Red eye is actually a little image of the subject's blood vessels at the backs of the eyes. You see red eye pretty much only when a flash is used. Those pre-flashes you see on most cameras give the irises time to close a bit in response to the light, and the closing of the iris is usually enough to prevent the red eye effect. The effect can be minimized or eliminated by having the flash off-set from the camera, so the line of light doesn't bring the reflection back to the camera's aperture.
Why does a human's eye turn red a dog's eye blue and a cats eye green when a camera flashes?
What you see in an eye in a flash photo is actually the color of the backside/inside of the eye. Animals with good vision in the dark have a reflective layer behind the retina. Humans hasn't, so what you're seeing is basically blood red.
Why does your rabbit have red eyes in the photo?
They have the red pigment in there eyes.....or it is because of the camera with red eye
