Have you ever taken a picture (with the Flash) at night or in a very dark place, well then you might know what its like to get a photo of people with red eyes, and how frustrating it can be if that’s the only photograph you have of that particular time. So, I’m going to tell you a few things about Red-Eye and hopefully help you to prevent it 
Red Eye from Flash
You may never have thought that the aperture or the diameter of the Iris in your camera is not only for controlling the amount of light that passes through to your sensor or film, but how you control your Depth of Field (D.O.F) in your photos.
Smaller Aperture = Larger D.O.F
Here’s a video tutorial of the Logo tut: http://www.scottphotographics.com/logo-tutorial/
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