This is a lens that was only fitted as an option on three old cameras from the 1950s. I tracked one down, and so for $40 I have one of my very favorite lenses in terms of bokeh. It is something like the Trioplan in terms of its “bubbles”, but perhaps even more pronounced in that regard than its German cousin. It has, in any case, a strong “structural” bokeh, which is my favorite. I got my copy just as early autumn butterfly season was beginning, and I spent some days at the flowers shooting with it, and very happy with the results.