Screwed on a Marumi DHG close up filter ( +3 dioptre only but fairly thick and heavy already )
*Achromatic filters correct for chromatic aberration (color fringing) at two wavelengths, while apochromatic lenses provide better correction for three wavelengths, resulting in sharper, more brilliant images.
I am not aware of Apochromatic macro filters but Achromatic filters would already be a huge IQ step up from non corrected cheap macro filters.
Supper tonight
Macro without filter
With filter
Seems to have some useful details.
Unfortunately AF is extremely unreliable at 23mm. Initially thought could have some macro tricks with a 1 inch sensor, looks like not doable in this instance.