Ok. I try. It is not rational, and just an early stage personal impression, so it could be just the new toy upstaging the old toy. Or, the modern clean rendition of 35/1.8s is affecting my initial feeling. ZF.2 35/2 is a very popular lens in ZF series, so it survived the Milvus transition. Mine is the old ZF.2, pre- Milvus. It was my first ZF lens, which I still own. Over the years, I got less and less drawn to it. I can not pin point, but one obvious thing that kept bothering me was the barrel distortion. I also think it is something about the rendering that drifted me away from. That might have been the reason why I got ZF.2 35mm/1.4 later on. Distortion may not be that different, and it is a big heavy lens, it was impossible to focus on D700, better with D810 and, of course no comparison with Z6. This lens was not a modern Zeiss design, and kind of a weak performer in the lineup so Zeiss discontinued it by introducing a new design with Milvus line. With all the cons, there still is something magical with that lens, and I still love it when I use it. It is probably the bokeh,but also it feels more transparent than f2 version. Anyway, all of that was in the background, and comes Z 35/1,8S. It is quite crisp, and so far I am enjoying the rendering, no annoyance with barrel distortion, light weight, and No complaint with the AF. What I don’t know is whether the cleanliness of 35/1.8S becomes boring after a while, or I enjoy it more the more I use it, which happened with 24-70/f4 S..
Luka