Vintage 180mm Carl Zeiss Jena Tessar
5x7 Sinar P, Kodak TMY, Pyrocat HD
The blur on the images to which you have provided a link, shows what some people might consider "unfavorable" effects in the distant circular lights. They look like rings, rather than uniform disks.
If you search this forum, you will find zillions of posts on the subject, including very old portrait lenses.
My favorite lenses for sharp focus and uniform blur in large format, are vintage Carl Zeiss Jena Tessar lenses (see above). As I recall, many of the Xenar lenses are of a Tessar design.
Vintage 150mm Braunschweig Heliar
4x5 Sinar P, Kodak TMY, Pyrocat HD
Another favorite is Heliar lenses. They have a slightly different quality, which like most good things, is very hard to describe. Both Tessars and Heliars keep their nice qualities when stopped down a bit. I never shoot them wide open.
All things being equal, the longer the lens, the shallower the depth of field, and the greater the blur.
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