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A demonstration of red-eye correction. The red-eye effect in photography is the common appearance of red pupils in color photographs of human eyes. It occurs when using a photographic flash at low lighting or at night. When a flash passes through the eyes and rebounds at the back of the eye, it causes a red reflex in an image, turning the subject's
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Digital camera sensors are inherently sensitive to infrared light, [42] which could interfere with normal photography by confusing the autofocus calculations, because infrared light wavelengths may focus at a different point than visible light wavelengths, or by softening the image, if the red channel becomes oversaturated.
Lens flare on Borobudur stairs to enhance the sense of ascending. A lens flare is often deliberately used to invoke a sense of drama. A lens flare is also useful when added to an artificial or modified image composition because it adds a sense of realism, implying that the image is an un-edited original photograph of a "real life" scene.
A common thermal light source in history is the glowing solid particles in flames, but these also emit most of their radiation in the infrared and only a fraction in the visible spectrum. The peak of the black-body spectrum is in the deep infrared, at about 10 micrometre wavelength, for relatively cool objects like human beings.
Eyes were undoubtedly the star of the runways at New York Fashion week, but there were also a few gorgeous moments of lip and glowy skin inspiration. Ahead, find our edit of the best fall 2025 ...
The human eye functions by focusing light onto a layer of photoreceptor cells called the retina, which forms the inner lining of the back of the eye. The focusing is accomplished by a series of transparent media. Light entering the eye passes first through the cornea, which provides much of the eye's optical power.
$44.00 at sephora.com. Icy Nude Eyeshadow Palette. The eyeshadow isn't the star of the show here, but does rely on matte, cool tones to add a subdued contour to Chappell's eyes.