I got this Kinoptik 50 about three years.
The K50 is a very distinctive and easy-to-use film lens...
It has a superb resolution, low dispersion at APO, low violet fringing, cleanliness, impressionistic/hyperrotating out-of-focus bokeh.
It is a lens with a good balance between practicality and individuality...
Of course, the only bad thing is that it is expensive and it is not easy to find a lens in good condition...
Kinoptik Focale APO 50mm F2 + Leica M10D
Kinoptik Focale APO 50mm F2 + Leica M10D
Kinoptik Focale APO 50mm F2 + A7R3
The article provides a lot of Leica M10D / A7R3 thin mod + Kinoptik 50APO photos for reference, Here:
Kinoptik Focale APO 50mm f2