RE: fun with tricolor gum

From: Breukel, C. (HKG) ^lt;C.Breukel@lumc.nl>
Date: 01/09/06-04:09:06 AM Z
Message-id: <CE29D3825485344B9909EEADF243B074BA60B5@mailc.lumcnet.prod.intern>

Sorry Katherine,

Unlike the rest of your site, I still cannot contact below page..

Best,

Cor

> -----Original Message-----
> From: Katharine Thayer [mailto:kthayer@pacifier.com]
> Sent: vrijdag 6 januari 2006 21:04
> To: alt photo
> Subject: Re: fun with tricolor gum
>
> Sorry, I was tidying up on the website while I was there and
> apparently deleted the thing I'd just uploaded, thinking it was
> something else. I really need to establish a better convention for
> naming things so that doesn't happen. But I did say it wasn't going
> to be there long :-)
>
> My point in showing these outtakes, aside from sharing the joy of
> having fun with tricolor again, and to suggest that anyone seriously
> interested in tricolor might spend some time printing this test
> image, was to show that just dinking around with unfamiliar pigments,
> you can get within shouting distance of a color print, and from there
> it's just a matter of adjusting the pigment concentrations to get a
> better balanced print. Before I re-uploaded the page I added the
> first print I did in this series (middle lower row) which was the
> precursor to print (A). When I mixed the pthalo gouache, I was
> thinking about something else and absentmindedly dumped in way too
> much paint, as much as I would for a sort of regular pigment, which
> is way too much for pthalo, as can be seen in the finished print.
> Print (B) is the first attempt at the fairly unfamiliar transparent
> pigments and no doubt the second attempt will be closer to a good
> balance, as was (A).
>
> One thing I realized as a result of turning everything upside down
> from my usual practice, was how much I rely on printing the cyan
> last, for getting the print right (assuming the cyan is properly
> pigmented in the first place). Printing it first, I can't tell til
> I've printed the whole print whether it's right or not, (the cyan
> layer for that middle lower print looked great by itself, but was
> obviously too dark for tricolor) but printing it last, one can
> adjust the development to make it come out perfectly. This is because
> the cyan separation contains a large part of the "density" and
> contrast of the total print.
>
> I also think that I'll probably stick with Pictorico for separations,
> and just adjust the exposure and possibly the curve to deepen the
> print. What's amazing, when you think about it, is that so many
> variables affect how a tricolor prints (the pigments, the
> concentrations of the pigments relative to each other, the curve, the
> transparency material, etc etc, not to speak of the gum, the paper,
> the light) and yet it's not that hard, as Chris said the other day,
> to get a print that "works" in a kind of general way, just using a
> sort of arbitrary choice of pigment concentration.
>
> http://www.pacifier.com/~kthayer/html/tricolorfun.html
>
> Katharine
>
>
>
> On Jan 6, 2006, at 1:36 AM, Breukel, C. (HKG) wrote:
>
> >
> > Katherine:
> >
> > Very interesting post, but unfortunately I cannot open below page..
> > "Page cannot be found"..
> >
> > Best,
> >
> > Cor
> >
> >>
> >> http://www.pacifier.com/~kthayer/html/tricolorfun.html
> >>
> >> Katharine
> >
Received on Mon Jan 9 04:10:00 2006

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