U of S | Mailing List Archive | alt-photo-process-l | RE: uncurve/curve comparison on Loris' website

RE: uncurve/curve comparison on Loris' website

Charles if that also doesn't work, don't overlook my suggestion of a
levels / gamma adjustment channel before making separations (in
luminosity mode -> thanks Michael)...

BTW, what dichromate concentration are you using? You may try to use
less dichromate if you use saturated solutions. That way, you may
achieve paper white with colorized negatives (despite their DR being
lower compared to grayscale / all-inks negatives).


-----Original Message-----
From: ryberg [mailto:cryberg@comcast.net] 
Sent: Thursday, September 27, 2007 6:56 PM
To: alt-photo-process-l@usask.ca
Subject: Re: uncurve/curve comparison on Loris' website

    So, now I'm, running curves with less pigment in the magenta layer
still using Daniel Smith's Perelyne Red).
    I really doubt that it matters, but I'm using an Epson R1800 with
party dye ink and have determined from one-coat gums, VDB and Cyanotype 
that -  RPM - all ink colors  - no color control - is the only option
puts down enough ink to give me paper white.