I picked up a Fujinon-SF 180/5.6 with just the yellow disk in great shape a couple months ago and have finally developed and scanned the first handful of negatives with it. This one seems to show the "glow" well, in part because of the extreme range between the very well lit (and "glowy") flowers, and the dark background:
12-03-2024-02 by Drew Saunders, on Flickr
Wide open at f/5.6, no disk. I tried focusing on the flowers on the right, not sure how well I nailed focus, which is often difficult with soft focus lenses, as most people posting here well know.
This one has the yellow disk, wide open at "5.6" but ends up at f/8 with the disk, plus a Lee Orange #21 filter to darken the sky quite a bit:
12-03-2024-04 by Drew Saunders, on Flickr
https://www.flickr.com/photos/drew_saunders/
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