In optics, chromatic aberration (CA, also called achromatism or chromatic distortion) is a type of distortion in which there is a failure of a lens to focus all colors to the same convergence point. It occurs because lenses have a different refractive index for different wavelengths of light (the ...
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What is Chromatic Aberration?
What is Chromatic Aberration? Is it a physical part of the lens, or just an optical illusion?
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Is there an easy way to force chromatic aberration?
A couple of months ago I was playing with my camera and a magnifying glass and I noticed that this glass produced a very soft chromatic aberration. Here's an example:
(Here is the full size, 18mp ...
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What causes longitudinal chromatic aberration on Nikon 50mm f/1.4D?
I have looked on my new 50mm lens photo (I have Nikon D90) and I see "purple fringing" around the unfocused objects (longitudinal chromatic aberration). What's is going on? Is it common for this lens ...
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Is it technically possible to build a camera body to correct for lens defects?
Most lenses tend to be expensive because the lens needs to be very complicated in order to correct for various optical effects (aberration, etc). Is it possible to build a sensor and processor ...
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How do I avoid getting any chromatic aberration in my photographs?
Another question is how to correct it (suggested in proposals), but
... are there ways of avoiding it in the first place?
