Digital BW, The Print

I am very interested in trying the piezotone black along with the MIS
FS inks. Please post your results if you do try this. 
My two concerns are:
1. Will the Cone profiles still be accurate?
2. Stability. Jon Cone warns about mixing ink bases. Does anyone know
if the Piezotone and MIS ink bases are compatible?

I'm more concerned about issue #1.


Thanks,
Stan 

--- In DigitalBlackandWhiteThePrint@y..., "Martin Wesley"
<mwesley250@e...> wrote:
> Robert,
> 
> I do agree with your assessment but the prospect of using the new
PiezoTone
> black with the current MIS sets is still appealing. Since we would be
> pushing the Dmax up from 1.7 to 1.9 we should still see some improvement
> even if we have to give some density back in order to keep things
linear.
> 
> The other issue is that we are reaching a level where it becomes
harder and
> harder for the human eye to distinguish differences in tone. I find the
> visible difference between 1.8 and 1.9 to be pretty small myself but
I can
> clearly see the difference between 1.7 and 1.9. At the white end of the
> scale the difference between 0.08 and 0.06 is quite noticeable.
> 
> Martin
> 




> http://www.borderless-photos.de/guests.html
> 
> 
> 
> ----- Original Message -----
> From: "Robert Morrison" <rmorrison@p...>
> To: <DigitalBlackandWhiteThePrint@y...>
> Sent: Sunday, June 09, 2002 11:52 AM
> Subject: Re: [Digital BW] PiezoTone with Epson Driver Dmax
> 
> 
> > Very interesting Martin, however I would be surprised if you can
maintain
> > the dmax when you linearize the 80-100% section of the curve. 
Invariably
> > any adjustment up in this region seems to bring dmax down.  I've been
> > working with an experimental 3rd party rip.  I'm capable of
getting 1.88
> > with the Piezotones and photorag...but when I linearize the shadow
region
> > the dmax comes down to 1.84.  Remember Jon's focus with the piezo
driver
> is
> > to have a driver that can really show off shadow detail...I've studied
> many
> > of his profiles and this is almost always the characteristic.  From my
> > experience this will always limit dmax somewhat...but it give you
room to
> > show off the 90-100% shadow detail...its a tradeoff in my experience.
> >
> > Robert
> >
> >
> > On 6/7/02 10:06 PM, "Martin Wesley" <mwesley250@e...> wrote:
> >
> > > With the original Piezo inks I and others have noted that the Epson
> driver
> > > with the same ink produces a deeper black than the Piezo drive. I
> rechecked
> > > this with the new Piezo tone inks. I printed a 1" 100% black
square on
> the
> > > same piece of Photo Rag paper. First with the Piezo driver and
then with
> the
> > > MIS-VM workflow and a RGB separation curve through the Epson Driver.
> After
> > > letting the printout sit for a couple of days (it does dry down
by the
> way) I
> > > got the following measurements checking all four corners and the
center
> of
> > > each square:
> > >
> > > Piezo driver: 1.80 to 1.82
> > > Epson driver: 1.89 to 1.91
> > >
> > > To see if there was still low end separation with Epson driver I
printed
> out a
> > > step wedge that includes 95% through 100% patches once again
using the
> MIS-VM
> > > workflow. These lower tones gave the following readings:
> > >
> > > 100% - 1.89 - 190
> > > 99% - 1.87 - 1.88
> > > 98% - 1.85 - 1.86
> > > 97% - 1.80
> > > 96% - 1.78
> > > 95% - 1.72
> > >
> > > This is not perfectly linear but the workflow used is not
matched to the
> inks.
> > >
> > > A Dmax of 1.9 is really quite amazing for a matte paper and
brings the
> matte
> > > inkjet prints very close to silver print range.
> > >
> > > It will be interesting to see if the PiezoTone black ink can be
used to
> > > replace the standard black in the MIS-VM and MIS-FS sets. The
black in
> the
> > > MIS-VM set has a Dmax of 1.7 to give you the comparison.
> > >
> > > Martin Wesley
> > > http://www.borderless-photos.de/guests.html
> > >
> > >
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
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