The Kino Plasmats were revolutionary lenses when they were designed a century ago, at f1.5 the fastest lenses available at the time. The 25mm is still somewhat affordable, but the longer focal lengths–50, 75 and 90mm–run into multiple tens of thousands of dollars. They are not particularly sharp by modern standards, but cover a wide field for their focal length and have very interesting, swirly bokeh.
This baby of the family has (for me) a beautiful edgy rendering, and covers the APS-C sensor nearly without vignetting, having one of the largest image circles of any C-mount 25mm lens, rivaled only by (in my experience) the Dallmeyer Super-Six, followed closely by the Ross 1 inch f1.9 cine lens. It should be noted, however, that the Wollensak Cine Velostigmat 1 inch f1.5 lens is not far behind, and has a somewhat similar edgy bokeh (for a fraction of the cost of the Kino Plasmat).
