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Red-Eye
A phenomenon which occurs when the flash is fired directly into the subject's eyes in a dimly lit or dark environment. Blood vessels in the back of the eye reflect their color back through the iris of the eye which is usually opened wide in dim light. Most digital cameras have a flash mode to reduce or eliminate this condition.
Resolution
A measure of how much information a digital camera can record, usually expressed in pixels or MegaPixels and arrived at by multiplying the length (in pixels) times the width (in pixels) of the CCD sensor array.
RGB
Red, Green, and Blue: The primary colors of light which, when mixed in varying proportions can produce all colors. Digital cameras and monitors use RGB to record and display colors.
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