No prints yet, this is based on inspection of wet negs...

Tri-X 4x5 exposed at ASA 320
Pyro 510 1:400
60 min semistand: 3 min prewet, 2 min initial agitation 15 sec agitation @ 31min
Open tank, minimal suspension

Initial Impressions:

  • Negatives show deeper stain associated with Pyrogallol (like PMK)
  • Shadows suggest film hit full speed
  • There appear to be some hints of transition effects on cloud edges similar to PMK, but only printing can confirm this
  • One of the negatives shows striping effects in the clouds but I cannot tell yet if that was just the scene or a development artifact


In general, all the howling about how 510 isn't any good seems unfounded.

I won't know about acuity and edge effects until I print.

More to follow.