QTR-Quadtone RIP

Hi Paul.

I finally found it....I have to use the "Load Curve" option for the 
ink, then click the curve button.  Not sure I totally understand the 
procedure yet, but I found these features in QTR.

Lou

--- In QuadtoneRIP@yahoogroups.com, "Louis Dina" <lou@...> wrote:
>
> Hi Paul.
> 
> You lost me with this statement:
> 
> "I set this with a single 21-step curve printed with a straight 
line 
> curve profile.  I make the curve by entering the coordinates (0, 0) 
> and (100, 100) in QTR's "Point List."  (Tools>Curve 
> Creation>Curve>Point List tab)  In short, on 21-step print takes 
care 
> of dmax and all ink limit (and black > boost) issues in making the 
> profile."
> 
> I understand the concept of setting the default ink limit just 
before 
> it reaches the unreliable flat zone, but my copy of QTR doesn't 
seem 
> to have the features you refer to (at least I can't find it).  I am 
> using v2.5.2.0 on a Windows XP machine.
> 
> When I go to Tools>Curve Creation, I see no "Curve" or "Point List" 
> tabs to select.  I'd love to understand exactly what you are doing 
> and recommending, but I am confused at this point.
> 
> Thanks, Lou
> 
> 
> --- In QuadtoneRIP@yahoogroups.com, "Paul Roark" <paul.roark@> 
> wrote:
> >
> > I think my experiences are consistent with the views of this 
thread.
> > 
> > 
> > >> I had my default ink limit set fairly high initially, 
> > >> where the curve was getting very flat. 
> > >>... The 90, 95 and 100% tones were bunched up pretty close. 
> > 
> > Some set their dmax not to the point of absolute darkest, but to 
> that point
> > where the curve becomes so flat the noise and variables might 
cause 
> future
> > posterization.   
> > 
> > Usually the higher the load of an ink (more pigment particles 
> relative to
> > base), the sooner it will reach the point where the curve's slope 
> is too low
> > to be useful or reliable.
> > 
> > The MK is the highest load ink.  So, I use it for the default ink 
> load.
> > Usually you can then simply ignore the black boost and other ink 
> limits.  I
> > set this with a single 21-step curve printed with a straight line 
> curve
> > profile.  I make the curve by entering the coordinates (0, 0) and 
> (100, 100)
> > in QTR's "Point List."  (Tools>Curve Creation>Curve>Point List 
> tab)  In
> > short, on 21-step print takes care of dmax and all ink limit (and 
> black
> > boost) issues in making the profile.
> > 
> > >... It is better to start with a more 
> > >conservative max density for building curves, and after you have 
> > >everything working right, then you can mess with BOOST K, 
OVERLAP, 
> etc.
> > 
> > Among other things, I prefer to have a reasonable good curve 
going 
> into the
> > linearization.   With respect to the adjustments in the tabs 
> between the Ink
> > Setup and Linearization tabs, I leave adjustments in their default
> > positions.  As one expert once commented about Gimp print in 
another
> > context, it has lots of controls, but most of them are not worth 
> bothering
> > with.
> > 
> > Paul
> > www.PaulRoark.com
> >
>