Re: tempera interests

Its additive color so equal parts of green and red would give me yellow.

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 23:07:53 +0000
>
>How do you print for yellow?
>
>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, 8:58 PM
> >
>
> > 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 23:14:07 2005