U of S | Mailing List Archive | alt-photo-process-l | Re: Ruined 3rd tricolor gum print! Grrrr...

Re: Ruined 3rd tricolor gum print! Grrrr...

What a charming gallery.  I have been reading about using Photoshop to
salvage old photos, but this is a far more attractive way to revitalise
them. Who was the original photographer (reminiscent of JH Lartigue)?
Don Sweet

----- Original Message ----- 
From: "Christina Z. Anderson" <zphoto@montana.net>
To: <alt-photo-process-l@usask.ca>
Sent: Tuesday, September 23, 2008 2:18 AM
Subject: Re: Ruined 3rd tricolor gum print! Grrrr...

> Loris,
> You are right to cut down phthalo.  It is an incredibly concentrated
> pigment.  However, I develop it longer if it is too strong and that seems
> help.
> Flaking--your layer is too thick with not enough exposure, but also the
> layers beneath have created more of a slippery surface for the final layer
> to hang onto.  Thus you could thin out the final layer and brush it on
> carefully.  I might thin it with, let's say, 2 di: 1 gum/color. This will
> make the layer faster because of the increased dichromate and thinner
> but that may help you even more.
> The thing about gum is it is never a done deal--scrape off the layer and
> start again.
> What is ironic is just as you are dealing with this as a problem, I am
> encouraging it.  This latest series of gums I am doing is the least
> photographic series I have ever done.  I am working with old family
> photographs/glass slides that are wrecked and molded.  Thus the images
> get much worse.
> I am attempting them to look more like silkscreens.  Thus, I print two of
> the same image at once, and one I leave photographic and then one I have
> been scraping away areas of color and then printing other layers on top.
> am REALLY loving it, but then again I won't have any idea of the reception
> of the prints.  People may not like them at all.  But I am finding that I
> putting the play back into gum printing and embracing mistakes.
> At the risk of intense criticism, I am including the first image I did of
> this series in both the non scraped and scraped form.  Be kind.  BTW all
> dust and mold?  Like I said, that is imbedded in the glass slide image.
> Slide is probably about 50 years old. And this slide is actually one of
> ones that is in BETTER shape.
> If you click on the link below you will come to the Family of Origin
> and at the bottom left are the two images first in the row.
> http://christinaanderson.visualserver.com/portfolio.cfm?nK=5571&nS=12&nL=1
> SO what I am saying to you is that the print that just flaked and looks
> yukky, if you can't salvage it, scrape and print another layer on top, or
> the VERY least do NOT throw it away.  Keep it for later because you may
> realize it is pretty interesting stuff.
> Chris
> __________________
> Christina Z. Anderson
> http://christinaZanderson.com/
> __________________
> ----- Original Message ----- 
> From: "Loris Medici" <mail@loris.medici.name>
> To: <alt-photo-process-l@usask.ca>
> Sent: Monday, September 22, 2008 7:34 AM
> Subject: Ruined 3rd tricolor gum print! Grrrr...
> > Hi all,
> >
> > I'm trying tricolor gum printing using plain paper negatives.
> >
> > I start with yellow (Schmincke 208 Aureolin Modern PY151
> > then I print the magenta (Schmincke 351 Ruby Red PV19 Quinacridone Red)
> > and everything (tonality, smoothness, color) is good & nice up to
> >
> > As the last layer, I print the cyan (Schmincke 479 Helio Cerulean PB15:3
> > Phtalocyanine Blue) and somehow it's too overwhelming, very uneven, and
> > flakes like crazy!
> >
> > Pigment amounts are as following:
> > 1. Yellow, pea sized, into 3.75ml gum + 3.75ml dichromate
> > 2. Magenta, lentil sized (read as: half of yellow), same as 1
> > 3. Cyan, lentil sized (same as magenta), same as 1
> >
> > Exposure times and dichromate amounts are the same for all three layers
> > (15mins., 20% ammonium dichromate). I use automatic development for 30
> > minutes, sometimes a little longer according to how it looks.
> >
> > I don't know why I'm having this problem but will try to (all together):
> > a) Print in the opposite order (1. Cyan, 2. Magenta, 3. Yellow)
> > b) Use even less cyan pigment to match the color intensity of previous
> > layers
> > c) Try to not panic while struggling to coat an extra even cyan layer...
> >
> > What can you say? Any ideas on why I'm stuck that way?
> >
> > Thanks in advance,
> > Loris.
> >
> >
> >