I cannot speak about un54.
I have run n74 in roller-transport machines and found that it took slightly
less time, maybe 10% less, to get a gamma of .65, compared with Tri-X,
using a conventional D-96 developer.
If I were hand-processing, I would start out with the Tri-X times and work
my way up
Please check out my bandcamp page.
For filmmakers working low-budget tracks can be made available for free download
https://laptophooligans.bandcamp.com/album/ethnomite-pux-rockstar-status-void-fear-of-god
Jaime
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