Very cool effect. Adds character if used sensibly.
Speaking of lens. A Mexican physicist recently came up with a new set of equations for manufacturing lens with the potential to remove the typical artifacts that have plagued manufacturing since the beginning.
Not sure if I am reading that correctly, but it seems to speak to spherical aberration, and not chromatic aberration, which as far as I am able to reason, is not really a solvable problem (since any given lens has a particular IOR).
Yup, completely different phenomena. I won’t spend much time on this because I don’t want it to hijack the OP which is indeed a cool feature. Both phenomena hinge on how the lens curves at the edges and the inability of the edges to focus light precisely. Things is, by correcting SA via equations that subtly alter the lens shape at the edge, it will do something to the CA as well; won’t resolve it since Snell’s law and wavelengths are involved, but it will do something since we are modifying geometry.
Once geometry is modified to solve for SA, then (my assumption is) a correspondingly shaped doublet could take care of the CA more effectively.