Wiki History Listing
| V1 |
In optics, [b]chromatic aberration[/b] (also called achromatism, chromatic distortion, and spherochromatism) is a type of distortion produced when a lens does not focus all colors to the same convergence point. It occurs because lenses have different refractive indices for different wavelengths of light (the dispersion of the lens). The refractive index decreases with increasing wavelength. While it can minimized by various means, it can not be entirely eliminated from any system containing lenses made of real-world materials. Thus, it always present in photography to some degree. To put it in simple terms: the image is moderately blurry with a fringe of two colors (usually red and blue) along the boundaries that separate dark and bright parts of the image. It is used in artwork mainly for artistic effect. In small amounts it can increase realism; in greater amounts it can create a sense of motion (similar to [[motion_blur]]), or of a chaotic environment. In excessive amounts it can indicate derangement and/or [[mind control]], as well as inducing significant eyestrain. h4. Examples * post #1959543 * post #2007527 h4. See also * [[film grain]] * [[lens flare]] * [[soft focus]] * pool #14571 (Chromatic Aberration Abuse) h4. External links * "Wikipedia:Chromatic aberration":https://en.wikipedia.org/wiki/Chromatic_aberration * "Photography Life: What is Chromatic Aberration?":https://photographylife.com/what-is-chromatic-aberration Updated by bot Sun, Sep 18 '22, 02:55 |