digital negs for ziatype

To: alt-photo-process-l@usask.ca
Subject: digital negs for ziatype
From: Robert Krawiec <robk64@yahoo.com>
Date: Mon, 26 Mar 2007 21:39:30 -0700 (PDT)
Comments: "alt-photo-process mailing list"
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Reply-to: alt-photo-process-l@usask.ca

Hi All,

I've been trying to create digital negatives for
ziatype on a 2200 with not much success and I was
wondering if anyone out there with expertise could
comment...

I'm using no contrast adjustment in my mixture, just
FAO and #3 solution, on arches platine paper.

I'm using black & coloured inks (i.e. not tried PDN
system yet) on pictorico OHP.

My problem is that I'm exposing for 15 mins with my UV
lights and still not seeing dmax (close though). My
step table though is not showing paper-white. The last
few steps are showing clear tones of grey.

My guess is that I need to mix a more contrasty mix...

Any other ideas or suggestions?

Thanks

Rob K. 






 
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Follow-Ups:
- RE: digital negs for ziatype
  - From: Loris Medici <mail@loris.medici.name>

References:
- Re: CS3
  - From: Dan Burkholder <fdanb@aol.com>