Digital BW, The Print

Steve,

Thanks for your information about using any inkset.I'll install them 
and run the ink separation/curve creator procedure. When using one of 
the already created curves (EEM) as the basis for my first curve on 
H'muhle Photo Matte 170gsm paper, I found too much ink was laid down 
and caused buckling of the paper, even after linearizing the inks. 
Then I used Tom Zuber Black Point procedure to determine the least 
amount of ink that would produce maximum black without loosing DMax. 
Now my shadows have a longer ---  tonal range and details that were 
not visible before changing the BP are visible now. And it saves me 
from wasting a lot of ink unneccessarily.

Your friend in Photography,

Johnny 

In DigitalBlackandWhiteThePrint@yahoogroups.com, Steve Kale 
<stevekale@b...> wrote:
> Johnny
> 
> ANY inks can be used with QTR.  It is up to you to decide which 
inks will be
> used to make up the greyscale curve.  There is nothing stopping you 
from
> having a purple scale if you wanted if you decided to make a scale 
with
> purple inks.  So go through the normal process with the FSN, 
choosing how
> and which inks you want to make the particular greyscale and in 
which order.
> RE your input/output/blackpoint issue I strongly recommend letting 
the QTR
> ICC profiles do that as described.  You'll get an accurate mapping 
of the
> bkpt and points in between.  The average profiles that are provided 
for
> matte and photo paper respectively are good enough for almost all 
such
> papers.
> 
> Steve
> 
> 
> > From: Johnny Eades <jeades1@s...>
> > Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> > Date: Sat, 30 Apr 2005 21:33:03 -0000
> > To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> > Subject: [Digital BW] Re: QTR question
> > 
> > Frank,
> > There is a website that has been mentioned here often-Tom Zuber
> > (www.Zubergraphics.com)that has an abundant amount of data on BW
> > printing; one being determining the Black Point and White Point 
your
> > paper/ink combination is capable of handling. After getting a
> > densitometer deal on Ebay, I have found that I was laying too much
> > ink on the paper to the point of it buckling. My BP (Black Point) 
has
> > been changed to Input=0 Output=28 and I find that my tonal range 
is
> > much longer in the lower values. You may want to go to that site 
and
> > study some of the information for Black and White printing.
> > 
> > Now that I've heard that FSN inks can be utilized in QTR curve
> > creator, I'll get to working on that.
> > 
> > Your friend in Photography,
> > 
> > Johnny
> >