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Physiology & Medicine / What causes red eyes in photographs?
« on: 06/12/2009 20:30:02 »
Rob Waite asked the Naked Scientists:
Hi Guys,
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Can I first start by thanking you all for such a great show, I have all my family hooked and we can hardly wait each week for the next addition of the podcast to be released.
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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 pictures on the computer. I have noticed that in some of my pictures people have red eyes.
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I've read somewhere before that this is due to light reflecting back out of the eye, but in the case of my photographs, it only seems to be certain members of my family who have red eyes. I myself NEVER have red eyes on photos, but my wife often does.
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This is especially strange in family photographs when I am the only one who doesn't get the red eye effect.
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Just wondering if you could explain what redeye is, are there any tips to avoid redeye when taking picture, and why some people are more prone to others to having redeye.
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Thanks, Love the show,
Â
Rob (in Leeds)
What do you think?
Hi Guys,
Â
Can I first start by thanking you all for such a great show, I have all my family hooked and we can hardly wait each week for the next addition of the podcast to be released.
Â
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 pictures on the computer. I have noticed that in some of my pictures people have red eyes.
Â
I've read somewhere before that this is due to light reflecting back out of the eye, but in the case of my photographs, it only seems to be certain members of my family who have red eyes. I myself NEVER have red eyes on photos, but my wife often does.
Â
This is especially strange in family photographs when I am the only one who doesn't get the red eye effect.
Â
Just wondering if you could explain what redeye is, are there any tips to avoid redeye when taking picture, and why some people are more prone to others to having redeye.
Â
Thanks, Love the show,
Â
Rob (in Leeds)
What do you think?