Out of curiosity, I snatched up a cheap Rodenstock Hemi-Anastigmat f=7.2 with unknown focal length. Comparing it with my other lenses, it seems to be between 210 and 240mm, quite nice for my taste. Unfortunately, I couldn'd find much information on this lens except that it must be a somewhat strange design with three lenses in two groups, having a single meniscus lens as the rear element. On the ground glass it looks quite sharp wide open, which came a bit as a surprise. My first test films are still drying, so I can't tell much more right now.
Does anyone here know a bit more about this kind of lens? My search in the internet was not very helpful, yet. I'd be happy about any information you might have.
Peter
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