Yellow tulips - NEX-5 & Astro-Kino 65mm f1.5. Click to see larger
I don't even know who makes this lens. There is no place of original engraved on the lens, but the numerical system used (1:1,5 vs 1:1.5) indicates that it probably orginated from Europe, or at least designed for the European market. The coating is similar to that of the Kern Paillard Bolex 50mm f1.3, but is not as well made as the Bolex. Also, both were designed as a 16mm projection lens.
The Astro-Kino 65mm f1.5 is not as sharp as the Paillard-Bolex 50mm f1.3, but it has one less common characteristic: swirling backgrounds. Some really like this kind of affect, I am not so much into it. If anything, it makes my head spin.
Like most projection lenses, flare control is not great, and bokeh is strange and a little too weird for my taste, but not as bad as the Ilex 80mm f1.3. That one is the worse lens for bokeh, bar none, at least within my lens collection.
Astro-Kino with the home brewed focusing helicoid. click to see larger.
In terms of purple fringing, the Astro-Kino is one of the better ones. Unlike the Paillard-Bolex 50mm f1.3, which can be as bad as causing a layer of light purple on the picture where there are bright white colours. I guess the biggest drawback of using a projection lens, other than the focusing issue, is that there is no aperture control. But, shoot with what you have, and be surprised!