I just got the lens from stefan here in the classifieds. It is a silver version, one of the 300 made worldwide. I have shot some XP2 with it and negatives are with the lab. I am going to collect them today. Currently, the nokton 35 is on my m4 with ektar 100. I am haven't finish the roll yet. Will post some pictures here when I am done with it.
The photos in the nokton 35 f1.2 thread as well as on flickr convinced me to give this lens a try. The lens draws very well and its signature is unique. The slight barrel distortion is there but noticeable only in some situations but it does not bother me at all. In my humble opinion, I feel it has been "too overly nit picked" in some thread discussions.
It is easily 4-5 times the size of my summaron 35 f2.8 and almost 2-3 times the size of my cron 50 dr. Reading about its size factor in RFF is not as accurate as handling it yourself real life though. It is big but not overly so.
It intrudes into the bottom right corner of my m2 and m4 vf and it does need a little getting used to. The aperture rings snaps in half stops for the larger apertures and full stops for small apertures. Nice feature.
The focusing ring is VERY well-damped. I won't call it stiff. I can cradle the lens with my left palm comfortably (the lens is ergonomic) and use two fingers to turn the focusing ring. The high damping aids in find focusing control for me. It takes approximately 1/4-1/3 turn of the focusing ring to switch from 0.7m to infinity. Well built lens. Better than my nikon ais lens in my opinion.
With regards to the absence of focusing tab, it is no issue. This lens functions very well with focusing ring. You can DIY a tab by using securing a cable tie around the focusing ring if you want. But given a choice, I prefer the focusing ring for better control due to the way we have to hold the lens.
If big lens, vf intrusion and some barrel distortion bothers you, then don't buy it. If they don't bother you, then loads of wonderful image opportunites await you with this awesome lens!