Correcting Chromatic Aberration

The Wikipedia page goes into some decent detail about how lenses can be designed with less chromatic aberration, or how it can be corrected in post-processing.

Once you have an understanding of the difference in magnification between the different spectral bands, you apply a resampling to align the laterally separated color channels with each other. You can apply chromatic aberration correction using our https://www.imatest.com/docs/radial-geometry module. For more detail, see this post: https://www.imatest.com/2017/04/distortion-correction/.