QTR-Quadtone RIP

I am very new to the Quadtone RIP.  I started using it to get rid of the 
pinkish cast I'd get from using the standard Epson driver to print B&W 
prints.  I thought my only real alternative was ImagePrint.  The QTR 
serves its function quite admirably, though I still have trouble in 
controlling it.  I tried to tweak existing profiles to give me a very 
neutral tone but things did not turn out as well as I'd hoped.  

Then I tried the experimental cool curve for UC with PK ink on Epson 
Premium Semigloss posted by danielstaver.  That profile is fantastic.  
It is not the tone I'd prefer, but it sure beats anything I had, that's 
for sure.  It greatly enhances my printed images.   I tried to "modify" 
it a bit to make it neutral, but quickly found out that it's not that 
easy.  Nonetheless, thank you for a great profile.  It worked wonders on 
the images I printed with it.  If there is a way to make this profile 
more neutral (not that I'm complaining), please feel free to share it.

Hi Alex,

great to hear that the curve is working so well for you!

Have you tried the blending option in QTR? Usually you choose a cool curve
and a warm curve and then choose a blend between the two at print time to
create a neutral tone. For this reason you often won't find a single truly
neutral curve for QTR. Try UCpk-EPremiumSemiGloss-warm as the warm curve.

Start with a 50/50 blend and move in either direction as you see fit.

I've developed the curve further since last time and now have a linearized
version available. I can post it when I get to my office tomorrow.

If you want to tweak the curve to make it more neutral you can try adjusting
the limits for LC and LM. Try to halve the limits (25/19) and see how that
looks. 

--
Daniel Staver
http://daniel.staver.no 

> Then I tried the experimental cool curve for UC with PK ink 
> on Epson Premium Semigloss posted by danielstaver.  That 
> profile is fantastic.  
> It is not the tone I'd prefer, but it sure beats anything I 
> had, that's 
> for sure.  It greatly enhances my printed images.   I tried 
> to "modify" 
> it a bit to make it neutral, but quickly found out that it's 
> not that easy.  Nonetheless, thank you for a great profile.  
> It worked wonders on the images I printed with it.  If there 
> is a way to make this profile more neutral (not that I'm 
> complaining), please feel free to share it.

Hi Daniel,

Hope you and Alex don't mind my chiming in here, but I'd love to see 
your latest version of the curve as well. I'll look forward to your 
posting it when you have a chance...

Thanks much!
Richard

--- In QuadtoneRIP@yahoogroups.com, "Daniel Staver" <daniel@p...> 
wrote:
> Hi Alex,
> 
> great to hear that the curve is working so well for you!
> 
> Have you tried the blending option in QTR? Usually you choose a 
cool curve
> and a warm curve and then choose a blend between the two at print 
time to
> create a neutral tone. For this reason you often won't find a 
single truly
> neutral curve for QTR. Try UCpk-EPremiumSemiGloss-warm as the warm 
curve.
> 
> Start with a 50/50 blend and move in either direction as you see 
fit.
> 
> I've developed the curve further since last time and now have a 
linearized
> version available. I can post it when I get to my office tomorrow.
> 
> If you want to tweak the curve to make it more neutral you can try 
adjusting
> the limits for LC and LM. Try to halve the limits (25/19) and see 
how that

> looks. 
> 
> --
> Daniel Staver
> http://daniel.staver.no 
> 
> 
> > Then I tried the experimental cool curve for UC with PK ink 
> > on Epson Premium Semigloss posted by danielstaver.  That 
> > profile is fantastic.  
> > It is not the tone I'd prefer, but it sure beats anything I 
> > had, that's 
> > for sure.  It greatly enhances my printed images.   I tried 
> > to "modify" 
> > it a bit to make it neutral, but quickly found out that it's 
> > not that easy.  Nonetheless, thank you for a great profile.  
> > It worked wonders on the images I printed with it.  If there 
> > is a way to make this profile more neutral (not that I'm 
> > complaining), please feel free to share it.

Just added the file 2100-mis-pro in the files section.
http://groups.yahoo.com/group/QuadtoneRIP/files/

It's a couple of cool/neutral curves for Epson Premium Semigloss and the MIS
PRO inkset with PK and PKN inks. They will probably work with UC inks as
well.

They're still a work in progress. The shadows are a little too blue and that
needs to be fixed, but they're all linearized.

--
Daniel Staver
http://daniel.staver.no

Dan:

Thank you for the alert.

I modified your experimental cool curve and I think I
have a good neutral version of it.  I tried the
suggestions you made.  I then took your curve and
bumped up Black Boost to 100% and changed it so that
it uses only the black inks.  This seemed to get me
where I wanted to go --- a good neutral print.  Then I
compared this modified Staver profile against several
other alternatives using one image.  In my view, the
best results were from the modified Staver profile ---
bumped up Black Boost and all black inks.  All I would
think to do is maybe make the shadows +2 on the GUI,
as a +5 setting was too strong for my taste.  The
UC-No Black-Neutral profile came the closest to this,
but modifying your profile was still best of about ten
prints I ran off (which included your other
suggestions).  It just has that snap that is hard to
describe.  I used Ilford Smooth Glossy for all prints
--- the profile works quite well on it.

Thank you so much!  More on this later, as I tweak it
a bit, though it is superb as is.

Al Larson

--- Daniel Staver <daniel@...> wrote:


---------------------------------
Just added the file 2100-mis-pro in the files section.
http://groups.yahoo.com/group/QuadtoneRIP/files/

It's a couple of cool/neutral curves for Epson Premium
Semigloss and the MIS
PRO inkset with PK and PKN inks. They will probably
work with UC inks as
well.

They're still a work in progress. The shadows are a
little too blue and that
needs to be fixed, but they're all linearized.

--
Daniel Staver
http://daniel.staver.no


  
    
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