From: Jack Brubaker (jack@jackbrubaker.com)
Date: 02/01/03-09:01:33 PM Z
Gord,
To continue JS comments on area color in gum printing. One can also print
first layer with no pigment (just gum and bichromate). Expose just long
enough to get faint POP image caused by the tanning of the bichromated gum.
Using the tanned image as a guide the colors can be painted on selectively
as you choose. Also pos. to have several colors mixed ready to go and paint
each one in its own area. Since all are wet at the same time you can use a
dry, wide brush to smooth over the whole print while still wet for most even
layer thickness. This can be skipped but its hard to get coating even if you
don't brush over it some how. The brushing can help the colors blend
together at the edges of color areas is this works for your intent. It will
reduce the fanaticisim required to keep each color exactly in its own area
(by letting them blend a little at their margins). If you want sharp edges
to color area use gum to mask per Judy's suggestion. Although I haven't used
this method I assume one can dry brush over the gum to smooth the applied
gum-pigment-bichromate. Besides its so much fun! Don't be afraid to do all
the above in good working light so you can really see what your doing.
Safelights are for where the paper drys, not where you work.
Jack Brubaker
> From: Judy Seigel <jseigel@panix.com>
> Reply-To: alt-photo-process-l@skyway.usask.ca
> Date: Sat, 01 Feb 2003 20:55:00 -0500 (EST)
> To: alt-photo-process-l@skyway.usask.ca
> Subject: Re: oil printing
>
>
> On Fri, 31 Jan 2003, Gordon J. Holtslander wrote:
>> I also have Koenig's book on Gumoil - which is supposed to give similar
>> results.
>
> Gord, there may be someone who has made a successful print with that
> process, but they're not mentioning it anywhere I've noticed. Koenig's
> genius is in fact publicity -- he had an article about that book in every
> photo publication in the known universe, and several in distant galaxies.
> But not complete. You had to buy the book.
>
> Since you have it, however, I'm curious about something....does he credit
> the actual originator of the process ?? (Mentioned in Kent Wade, BTW,
> before KK's book. I think it was a graduate thesis, or like that.)
>
> I've always meant to try oil... & I plan to, so why don't you lead the
> way? The downside is as I recall volatile solvents -- if your studio is
> near your living, as mine is -- VERY near. Meanwhile, you may not believe
> this, but gum bichromate will easily let you do area colors -- either
> brush out the color you don't want, or mask the area before coating with
> gum arabic, & dry... then coat gently so you don't pick it up. The
> emulsion, even if it's "exposed," will wash off over the "mask." Then dry,
> coat again with next color. Etc. That's somewhere in Post-Factory in more
> detail, maybe I hope in the index...
>
> (If you've seen Lyle Rexer's book, my "Kinky Tramps" was done that way --
> from a monochrome original. Actually it looks like a C-print in repro,
> because they cropped out the edges, which drove me crazy, but that's
> another topic... fact is, any multiple gum does area color easily enough.
> I made negs of different contrasts for Kinky, but that was as much to try
> imagesetter & digital negs as anything else. It's readily done with a
> single neg if it has a bit of range to spare.)
>
> cheers,
>
> Judy
>
>
>
>
>>> Has anyone
> used both processes? Any opinions on which one I should > attempt first?
>>
>> The reason I want to try these processes is the ability to ink different
>> parts of the print with diffirent colors. I have a few images just calling
>> out, begging for color, but I don't think hand coloring would do it.
>>
>>
>>
>> Gord
>>
>> ---------------------------------------------------------
>> Gordon J. Holtslander Dept. of Biology
>> holtsg@duke.usask.ca 112 Science Place
>> http://duke.usask.ca/~holtsg University of Saskatchewan
>> Tel (306) 966-4433 Saskatoon, Saskatchewan
>> Fax (306) 966-4461 Canada S7N 5E2
>> ---------------------------------------------------------
>>
>>
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