Thanks, I'm far too happy and satisfied with my Sigma to even lust for a Zeiss. And you haven't seen it operating with the D850.... :blink:

That weekend I had it with me in the usual dark dancing joint. It wasn't everything gold, a couple of missed shots because 3D AF-C couldn't cope (or mabye and more likely the user has still to learn how to handle these situations best

), but when it's sharp, you can see the little thin hairs on female skin.
Here the combination of CaptureOne RAW converter and D850 is just superb! ^_^ There were files around ISO 50.000 - I wouldn't put them on A1, but better than then D810.