U of S | Mailing List Archive | alt-photo-process-l | Re: pyro and alternative processes

Re: pyro and alternative processes

  • To: alt-photo-process-l@usask.ca
  • Subject: Re: pyro and alternative processes
  • From: eric nelson <emanphoto@gmail.com>
  • Date: Wed, 01 Apr 2009 13:01:09 -0500
  • Comments: "alt-photo-process mailing list"
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I tried to print some 4x5 PMK negs on Centennial POP (RIP :-( ) some time ago and they were extremely long exposures (way over an hour) and I didn't have much luck w/8x10 PMK negs on palladium either.  
I had increased development for the 4x5's to accommodate the print process AND I had done the post process staining which has now been shown to only add B+F density and is no longer recommended.  The 4x5 negs do look very dense.

So I had 2 factors that probably made these negs unsuitable for "alt" and I'm sure many others back then may have taken a similar approach thus giving it a bad name and might be what you were remembering.
Take away the post process staining and they may work just fine, but I've not experimented with this in a long time.  Also pyrocat hd might work even better than PMK, but again that's untested in this lab anyway.  I'd be willing to try if it came up.