Digital BW, The Print

Larry,

I am using the color fill method of making my digital platinum 
negatives.  After applying the curve and converting to RGB I color 
fill the image with a 0,55,55,0 color. This  color acts to hold back 
the UV light of my vacuum frame/UV Exposure unit thereby 
increasing the density of the negative. I have found that the 
Epson dye in the 10000 does a terrific job. Sky areas are smooth 
and show no sign of mottling.

I am only in the very early throws of this process and by no 
means pretend to have the system ready for exhibition printing.

Mike


--- In DigitalBlackandWhiteThePrint@y..., "Larry Roohr" <
lrryr@a...> wrote:
> Well, I'm psyched.
> 
> I just made a pictorico negative with a C80 printer I bought off 
of Epay
> last week for printing snapshots for my wife. It's a 4 color 
pigment desktop
> size, there are a bunch getting dumped on ebay at about $100 
each, new in
> the box along with $45 worth of ink that comes with.
> 
> Both of my biggest problems with previous negative making 
attempts appear to
> be gone.
> 
> Apparently the 2880 dpi is a major improvement over the 1160 
I was using
> when your printing on zero dot gain material like the pictorico 
OHP.
> Artifacts are way down in the mud with this printer.
> 
> Most of all, the curve I need to apply to straighten out the 
density's on
> the pictorico is very, very tame compared to what I was doing 
with the Epson
> dye and peizo inks. This is a biggee, the old curve took such a 
wild swing
> at the dense end I found it almost impossible to avoid 
posterization in the
> light tones of the resulting print. This curve is so reasonable 
compared to
> that.
> 
> I'm able to get a 1.3 density max (densitometer) with these 
inks, and just
> made a P.O.P. Zia print on Rives BFK (treated with Stuart 
Melvins oxalic
> acid coat), I overexposed this print, but it looks like I may be 
able to get
> a full range of tones for this process that takes a good 1.8 or 
so density
> units, this may be due to a difference in opacity between  u.v. 
and visible
> light for these inks. The jury's still out on this one, but worse 
case I may
> need to go to more contrasty ingredients for my coatings.
> 
> So Mike, thanks for the kick in the pants your note provided. I'd 
really
> like to see how your 1280 and 10000 curves look.
> 
> Does anyone know which wide carriage model the C80 is akin 
to?
> 
> Larry
> 
> -----Original Message-----
> From: mkravit [mailto:mjkaia@k...]
> Sent: Saturday, June 29, 2002 1:35 PM
> To: DigitalBlackandWhiteThePrint@y...
> Subject: [Digital BW] For Paul: Digital Silver / Platinum
> 
> 
> --- In DigitalBlackandWhiteThePrint@y..., "Paul Roark" <
> paul.roark@v...> wrote:
> > Stephen,
> >
> > You wrote:
> >
> > >Have you tried your MIS dye mix with Pictoro media,
> > >especially the transparent media. Some of us are still
> > >looking for the holy grail for digital negative making.
> >
> > Yes, and the ink densities that work on paper don't work well
> on the film.
> > I've increased the midtone ink densities so that the steps in
> the ramp are
> > close, but there appears to be non-linear absorption
> compared to the
> > pigmented inks.  I'm not sure without a separate profile that 
I'm
> going to
> > be able to tame the combination.  (Since I'm about to take off
> for a week, I
> > probably won't have more information for a while.)
> >
> > >I suspect the 2880 printers will have a slight advantage if 
you
> 
> Paul,
> 
> I have been getting very nice results utilizing Burkholders 
Curve
> for the 1280 and tweeking it a bit. On Pictorico film and Epson
> dye, my silver prints are visually indestinguishable from the
> enlarged negative prints. Except of course, all of the
> manipulations are already complete on the digital negative.
> 
> I am now working on silver and platinum curves for my  Epson
> 10000.  The platinum prints are stunning.  Yesterday I made a
> 17"x22" platinum negative on Pictorico film. Pictorico has just
> released a the film in a 24" roll size.
> 
> The 1280 negatives look very close to the 10000. The curves 
are
> a bit different, but the results are very close.  I am very excited
> about the results I have been getting. No more building 
enlarged
> negatives to meet the contrast requirements of platinum.
> 
> Mike
> 
> 
> 
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