Re: tempera interests

What I mean is I am doing seps via RGB instead of cmyk. Hence I have 3
negatives one for red, noe for green and one for blue. I have been making
two exposures with each neg. So my final print has six exposires on it.

I will go back to tryin the roller. I too havea foamy roughly the as you
describe.

Tim

>From: Alex Chater <alex.chater@macunlimited.net>
>Reply-To: alt-photo-process-l@sask.usask.ca
>To: alt-photo-process-l@sask.usask.ca
>Subject: Re: tempera interests
>Date: Tue, 18 Jan 2005 20:10:44 +0000
>
>Yes I do use two negs. I feel that it is all a matter of information. You
>have latitude in the washing phase so you can compensate to a considerable
>degree for over or under exposure. I find that it takes a few coats to get
>to strength so you have to build your tonal range on the print. It makes
>sense to me to have two negs so you can store your information in two negs
>You could even have three, one for the deep shadow one for the mid tones
>and
>one for the highlight. That may be a bit excessive as two seem to do very
>well.
>I use a tight foam roller commonly sold as glossing rollers. In the UK they
>are about 4 inches long and about an inch in diameter The temperaprint
>emulsion will sink into the surface of the roller and then you can just
>press firmly enough on the roller to coat the yupo. The secret to good
>coating is in the pressure, working methodically and observation
>I have tried rubber rollers and it all just skates about without any
>control
>at all, the emulsion is just to thin and watery.
>
>'So far I have not been using cmyk but two exposures each of RGB.'
>
>I don't quite follow you. How does this work?
>

>alex
>----------
> >From: Tim O'Neill <rivervalleyimages@msn.com>
> >To: alt-photo-process-l@sask.usask.ca
> >Subject: Re: tempera interests
> >Date: Tue, Jan 18, 2005, 2:31 AM
> >
>
> > Allex,
> > do you mean you use a separate neg or just a separate exposure for the
> > shadows, mids, and highs? So far I have found four exposure is the
>minimum
> > to even get close to decent blacks and I still am not concerned with
> > blocking the highlights so I have more I could go. It lends itself to
>full
> > color nicely. So far I have not been using cmyk but two exposures each
>of
> > RGB. As I saind I am closing in.
> >
> > when you use the roller in a fashion like rolling out printer ink do are
>you
> > using a foamy of or a soft rubber like a brayer. It seems if I get the
> > viscosity close to what I would use if I were producing a monoprint i
>have
> > better luck. I will have to go back to the roller and practice. If you
> > truly can get a smooth thin coating I truly am missing somehting in the
> > "technique side. Thanks for you input.
> >
> > tim
> >
> >>From: Alex Chater <alex.chater@macunlimited.net>
> >>Reply-To: alt-photo-process-l@sask.usask.ca
> >>To: alt-photo-process-l@sask.usask.ca
> >>Subject: Re: tempera interests
> >>Date: Mon, 17 Jan 2005 18:29:11 +0000
> >>
> >>I find that I cannot get a full range of tone on a single coat any way.
>I
> >>find it good to have a printer for the shadow and a printer for the mid
>to
> >>high light. The roller is the method I use. I find that it needs to be
> >>rolled out in a similar fashion as you would roll out printing ink. As
> >>tempera print is really a multi layer process you can build your image
>in
> >>thin
> >>coats.
> >>In practice don't overload the roller and roll it out in a logical
> >>manner, lightening the pressure as you go. In the end you allow the
>roller
> >>to glide quickly across he surface with as little pressure as possible.
> >>Spread it first and then polish it up as it were, try to roll in one
> >>direction
> >>only, particularly at the beginning. You can get a very smooth finish
>and
> >>thin. When its gone smooth and you have done a fair number of speeder
> >>passes, stop and dry it, done.
> >>
> >>Alex
> >>
> >>----------
> >> >From: Tim O'Neill <rivervalleyimages@msn.com>
> >> >To: alt-photo-process-l@sask.usask.ca
> >> >Subject: Re: tempera interests
> >> >Date: Mon, Jan 17, 2005, 3:27 AM
> >> >
> >>
> >> > mixed as in crap and crappier. I still have not found a curve I
>really
> >>like
> >> > specific to this process. Also I have being testing various coating
> >>methods.
> >> > Glas rod wrapped seems to be the best so far. Although Peters
> >>suggested
> >> > method of the roller has merit I am just missing something as I dont
> >>like
> >> > the texture it leaves. It alsmost looks like reticulation in 3d.
> >> > ...Normally I would also use amm dich, last round I had pot dich
>already
> >>and
> >> > thought I would test.
> >> >
> >> > T
> >> >>From: Alex Chater <alex.chater@macunlimited.net>
> >> >>Reply-To: alt-photo-process-l@sask.usask.ca
> >> >>To: alt-photo-process-l@sask.usask.ca
> >> >>Subject: Re: tempera interests
> >> >>Date: Sun, 16 Jan 2005 20:57:17 +0000
> >> >>
> >> >>
> >> >>Personally I use Ammonium dichromate for this process. It is faster.
> >>What
> >> >>do
> >> >>you mean by mixed results?
> >> >>
> >> >>Alex
> >> >>
> >> >>----------
> >> >> >From: Tim O'Neill <rivervalleyimages@msn.com>
> >> >> >To: alt-photo-process-l@sask.usask.ca
> >> >> >Subject: tempera interests
> >> >> >Date: Sun, Jan 16, 2005, 6:46 PM
> >> >> >
> >> >>
> >> >> >
> >> >> > I have been printing more tempera today with mixed results. I am
> >>however
> >> >> > getting closer. Seems I had old sensitizer the lst go around so
> >>results
> >> >>we
> >> >> > not there at all. Sensitizer will lose its punch. This was Pot
>Dich
> >> >>and 4
> >> >> > mos old at room temp in a brown bottle. On another note for any
> >> >>printmakers
> >> >> > out there. In expermenting with lupo I was curious if I could
>come
> >>up
> >> >>with
> >> >> > a icc profile for it. When I ran it through my Epson I got the
> >>expected
> >> >> > wheel tracks ect from printing on a pretty non- absorbant surface.
> I
> >> >>took
> >> >> > that image and sandwhiched it with a piece of fine art paper and
>ran
> >>a
> >> >> > brayer across it (just like a monoprint) and it transferred with
> >>really
> >> >> > interesting results
> >> >> >
> >> >> > Tim O'Neill>
> >> >> >
> >> >> >
> >> >
> >> >
> >
> >
Received on Tue Jan 18 14:59:35 2005