I'm not buying many lenses these days, but I did pick up a Kinon Superior I 5cm f1.8. Very interesting lens indeed. Unlike all the other shorter Kinons (5cm Superiors and 5cm Superior f1.6, and 65mm Kinon) this lens does not have swirly bokeh. Instead it has very strong bokeh. The lens covers about 80% of FF focused at infinity, about 90-odd percent at 1 meter, and covers the full frame at close distances. It is very sharp in the center of frame, albeit with some highlight halation, and though it is uncoated, is much less prone to flare working against the light and ghosting than most other projection lenses of the era that I have used. Here are some examples, post-processed, but not radically so. Some sharpening, contrast and clarity adjustments.