From: Judy Seigel (jseigel@panix.com)
Date: 02/05/03-01:39:31 AM Z
On Tue, 4 Feb 2003, Robert Newcomb wrote:
> ..While gum is also made with pigment and can vary from a soft look to
> one of high sharpness, it is a different look then oil and bromoil - perhaps
> a more "photographic" look.
> For what it's worth...
> Robert N.
You raise an extremely interesting point... Of course gum if it's done
with a lot of brushing or handwork as the Pictorialists often did will
have that "touched" look you describe, but it probably is easier to do
with a totally uninflected look than the oil processes. OTOH, I think
there are mechanical hoppers or the like that can give that uninflected
look to oil... (tho they probably need more skill in handling or so I 'd
guess, never having done them.)
J.
>
> "Gordon J. Holtslander" wrote:
>
> > Hi
> >
> > Persistence pay off - I'll try selective coloring with gum. I realized my
> > kids have a variety of watercolor pigments at home. I have everything I
> > need to try this.
> >
> > One of my co-worker has given me a cast-off container of gelatin. Does
> > anyone know of an easy way of determining the bloom rating of this?
> >
> > Gord
> >
> > On Mon, 3 Feb 2003, Katharine Thayer wrote:
> >
> > > Gordon J. Holtslander wrote:
> > > >
> > > >
> > > >
> > > > I could do this with gum, but it would involve a _lot_ of masking.
> > > >
> > >
> > >
> > > This is true, if you wanted there to be nothing at all, not even a very
> > > faint almost invisible image, in the areas where you didn't want color.
> > > But at the risk of sounding like one of those evangelizing fanatics who
> > > won't take no for an answer, I'll add that using Jack's method of
> > > setting the image in gum using just gum and dichromate with no pigment,
> > > the image in the noncolor areas would only be visible at certain angles
> > > if probably cleared, since gum itself is clear and the dichromate should
> > > be entirely cleared out of the hardened gum.
> > >
> > > Or you could do like Giacomelli did and just opaque out on the negative
> > > the areas you don't want to print; in that case you'd need a separate
> > > negative for each of the colors.
> > >
> > > Okay, I'll leave off evangelizing about gum; go in peace and print oil
> > > if that's what you want to do, but just wanted to make sure you
> > > understood what you were deciding against.
> > >
> > > By the way, most photographers' supply houses have gelatin at different
> > > hardnesses.
> > >
> > > Katharine Thayer
> > >
> >
> > ---------------------------------------------------------
> > 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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