Swirly bokeh, crazy colours and flare all add a charm to your images that modern lenses lack in their bid to produce a clinical, perfect image. The first vintage lens I owned was the one my father ...
Flare was one of the real difficulties in early complex lenses. Even a simple four-element lens if uncoated can reflect around 35% of the light hitting it, causing scatter and loss of contrast.
The taller the column, the better the lens performance ... f/1.8 -1.3 stops f/2 -1.2 f/2.8 -1.0 f/4-f/16 -0.8 Flare is quite something with this optic. Pointing towards the sun, or other bright ...