[Brightcolours]

So... that sheds no light on the matter. Not clear what he was referring to as "CA".. usually, we are talking about lateral CA when talking about CA, and it means that one or more wavelengths of light are being projected by the optics larger than other colours/wavelengths. This mainly is noticeable at contrasty edges near the frame sides, where coloured edges appear.



Since the chromatic aberration happens in the optics, one would not see a difference from one camera body to the next.



Probably the poster was talking about the more elusive "purple fringing", which is not "CA". But, since no examples are being shown, we can't be sure.