From: Christina Z. Anderson (zphoto@montana.net)
Date: 03/10/03-11:17:36 AM Z
Matti,
I'd love to see an offlist jpeg of your image. I could send you mine,
too. My exposures are around the 12 minute mark under UV lights (BL).
Most of the books say gum is a "short scale" process. I can never
figure that out, because i get a fully tonal image with gum that certainly
doesn't bug me. But I'm not a platinum queen anyway, where I would get used
to a truly looooooooooong tonal scale. Nor am I a scientist/densitometer
specialist, preferring to fly by the seat of my pants.
I'm gonna try that Zimmerman process of watercoloring the print without
sensitizer, etc., and see where that takes me. I just went thru my posts
that I had saved and Jack Brubaker--you've reported on that, too. Did you
use watercolors without the sensitizer added as Zimmerman says, or paint
with watercolored sensitizer on your print and then expose?
Chris
PS if i don't answer right away I'm out of town, this afternoon, to Moab.
----- Original Message -----
From: "Matti Koskinen" <mjkoskin@koti.soon.fi>
To: <alt-photo-process-l@usask.ca>
Sent: Monday, March 10, 2003 9:41 AM
Subject: Zimmerman process
> hi list,
>
> I tried mixing lot of pigment, just few drops of arabic gum and lots of
> dichromate. The result was great. First of all, until now, my exposures
> with lamp have been something between 1/2-1 hours, now the test strip I
> made had the shortest exposure of 10 mins and this resulted one hour of
> soaking in water to get a decent print. My lamp is 100 W blended light
> lamp, so with a good uv-source the time may be really short.
>
> I used Winsor&Newton Cotman Ivory Black color, and as it has already
> arabic gum, I added only very little bit more of arabic gum.
>
> Compared to my earlier "prints", this print looks much better. I'm a
> novice, so still there are many things I'm doing not the correct way, so
> the little contrasty image can be a result of the original digicam
> image or other things. I made just a straight inkjet negative. Zimmerman
> says in his article that a full tonal print can be made, mine is surely
> much closer to this than my earlier ones.
>
> Really worth trying. The print is drying at the moment, but perhaps I'll
> have the courage to scan it and show to others too.
>
> best
>
> -matti
>
>
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