U of S | Mailing List Archive | alt-photo-process-l | Re: First tricolor gum

Re: First tricolor gum

  • To: alt-photo-process-l@usask.ca
  • Subject: Re: First tricolor gum
  • From: Jim Larimer <jrlarimer@gmail.com>
  • Date: Wed, 01 Jul 2009 19:14:18 -0600
  • Comments: "alt-photo-process mailing list"
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Paul, the blue may need to be more saturated, but if you look at the borders you seem to be getting fairly saturated color. Perhaps your negative is a bit too dense? And, I really don't think that you need to develop for much longer than 5, to 10 min max. When I develop for as long as 60 mins, my prints are very washed out and thin. Just guesses. But, for your first tri-color I think you have done quite well!

On Wed, Jul 1, 2009 at 6:55 PM, Paul Viapiano <viapiano@pacbell.net> wrote:
OK, I tried a tricolor gum today with the intent of getting true color. Using 1:1 gum/dichromate ratios and sun exposures of 3 minutes and 30-60 minute development, I ended up with this:
My guess is that I'm not putting enough pigment in my mixes...especially the blue pigment.
I used Prussian Blue, Warm Sepia, and Anthraquinoid Red...all Daniel Smith watercolors.