I won an Industar 21cm lensmade in 1957 by FKD off of Feebay for $25 as I was hoping it would exhibit similar bokeh to the heliar type lens?? It was made for the last FKD wooden camera of that time. I hear that the Industar lenses can be quite good, and know that many of the 50mm versions in screw thread or M mounts for 35mm can give wonderful swirly effects. Will the same happen for the larger format lenses? Not much is available search wise on teh 21cm... some info on the 30cm is available, but not much on the bokeh. I was wondering whether Ole, or Jim Galli might know?