Photokina - Zeiss 135mm/2.0 - test shots

I wonder if your comparison was affected by fungi-related problems to the anti-reflective coating of your CV 125.
This might have altered color rendition.

About micro-contrast (and IQ, in general), there are many demanding photographers at Nikongear.com (including Bjørn Rørslett) who praise the CV 125, and prefer it to the 100/2 MP.

However, my point is not discussing which is better. I just wanted to stress that an excellent 125/2.5 lens with outstanding apochromatic correction and macro capabilities could be manufactured and sold at less than 1/2 the price of the current 135/2 Apo Sonnar, and at a significantly lower price than 100/2 MP (which I own, BTW). All these lenses are/were manufactured in the same production plant!

Probably Zeiss lenses are better than CV lenses, but I would encourage you and other fellows to think about this point (and why Cosina quit producing the CV 125/2.5 when they started producing the 100/2 MP ;)).

I have pictures taken with my 100/2 where I can correct purple fringes by NX2 (I'm referring to full-res raw files).

I agree. NX2 doesn't work equally with green fringes.
However, those fringes are not visible in a print as in 100 % crops.
I'll continue using safely my 100 Makro-Planar at f/2.

Best,

R.