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General Photography
F/stops and Colors
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<blockquote data-quote="Joseph Bautsch" data-source="post: 27923" data-attributes="member: 654"><p>LensWork, you are correct. A small aperture, usually f/22 or smaller can cause the the light to beak down to it's basic elements of red, blue, and green. Under certain conditions this can cause a multi color halo around the subject. It's not a shift in the color spectrum just a pulling apart of that part of the spectrum. More often than causing CA the small f/stop openings cause a deterioration of focus. CA is a greater problem in lens designs.</p></blockquote><p></p>
[QUOTE="Joseph Bautsch, post: 27923, member: 654"] LensWork, you are correct. A small aperture, usually f/22 or smaller can cause the the light to beak down to it's basic elements of red, blue, and green. Under certain conditions this can cause a multi color halo around the subject. It's not a shift in the color spectrum just a pulling apart of that part of the spectrum. More often than causing CA the small f/stop openings cause a deterioration of focus. CA is a greater problem in lens designs. [/QUOTE]
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