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Red-eye effect

en.wikipedia.org/wiki/Red-eye_effect

The red-eye effect in photography is the common appearance of red pupils in color .... Using the red-eye reduction capabilities built into many modern cameras .

What Causes Red Eyes in Photos and How to Fix the Red Eye Effect

www.allaboutvision.com/resources/red-eye-photo.htm

The appearance of red eyes in pictures, known as the "red-eye effect," occurs when a camera captures light reflecting from the retina at the back of your subject's ...

What Causes Red Eyes In Photographs - Today I Found Out

www.todayifoundout.com/index.php/2011/09/what-causes-red-eyes-in-photographs/

Sep 15, 2011 ... Today I found out what makes your eyes red in flash photographs. ... For instance , camera's with red eye reduction settings use a two flash ...

www.ask.com/youtube?q=Camera Red Eye&v=KBk0LBMjmbI
Dec 30, 2014 ... How can a camera's flash make your eyes glow red? Tune in to learn how it works -- and how to prevent it. Learn more at HowStuffWorks.com: ...

Camera Red-Eye - Science Updates - Science NetLinks

sciencenetlinks.com/science-news/science-updates/camera-red-eye/

Taking flash pictures of someone often gives their eyes a scary-looking red glow. You'll find out why in this Science Update.

Why do people have red eyes in flash photographs? | HowStuffWorks

electronics.howstuffworks.com/question51.htm

The flash on a camera is bright enough, however, to cause a reflection off of the retina -- what you see is the red color from the blood vessels nourishing the eye.

What Causes Red Eye In Photographs? - Science Questions, from ...

www.thenakedscientists.com/HTML/questions/question/2501/

Dec 6, 2009 ... I have a question about "redeye" when taking a picture using a camera. I've recently started the task of correctly sorting through all by digital ...

How to Eliminate Red-eye in Your Photos - Zoner Photo Studio

www.zoner.com/tutorials/red-eyes

The simple way is: don't use your camera's internal flash! But that's not the advice you came for, so let's take a look at how to easily eliminate red-eye in your ...

The Red Eye Effect: What It Is, Avoiding It, and Removing It ...

www.photographymad.com/pages/view/the-red-eye-effect-what-it-is-avoiding-it-and-removing-it

Red eye occurs when you use your camera's flash in a poorly-lit environment, like in a dark room, nightclub, or outdoors at night. In the dark, people's pupils ...

Red-Eye Reduction

www.cs.mtu.edu/~shene/DigiCam/User-Guide/995/INTERNAL-FLASH/red-eye-reduction.html

If the angle of reflection is less than 2.5 degree, red eye will occur. ... When red- eye reduction is in effect, do not move the camera immediately after the shutter ...

More Info

Photos Can Help Diagnose Children's Eye Problems and Save Sight

www.aao.org

Jul 28, 2014 ... A red reflex is produced when the flash of a camera lights up the blood-rich retina . If the eyes are looking directly at the camera lens and the ...

What Causes the Red Eye Effect? | Yale Scientific Magazine

www.yalescientific.org

May 12, 2011 ... The red-eye effect appears when flash photography is used at night ... of the eye's biology interacting with the camera's lighting mechanism.

Why do some people have red eyes in pictures and some do not ...

www.quora.com

Nov 23, 2012 ... A red eye is essentially light reflecting off the blood vessels in your retina - that is a ... In fact, staring directly at the camera's flash while anticipating the flash can allow for your pupils to constrict fast enough(if the photo has a ...