QTR-Quadtone RIP

Bill, are you actually in Washington? Near Seattle? We'll have a presentation/workshop day here in a few weeks, Ron Reeder will be here presenting his workflow. He uses QTR and makes negs for gorgeous platinum prints. I'll announce it here on list when t's coming up if people are interested.
Tyler
http://www.custom-digital.com/

--- In QuadtoneRIP@yahoogroups.com, "bill_iverson_washington" <bill@...> wrote:
>
> 
> Thank you very much Kentaro.  I have downloaded your newer qdensity.exe
> file and will try it.
> 
> The increasing L* values you have tried go from darker to lighter.  So
> it would seem the density values should also go from darker to lighter. 
> Such as 1.30, 1.24, 1.18 . . . 0.05.  Not 0.05, 0.12, 0.18 . . . 1.30. 
> Also, if I enter density values in the same way I do for making a QTR
> profile to print a positive print (from lighter to darker), how would
> the program module know that I want to linearize a digital negative
> profile and not a profile for printing positive prints.
> 
> Do you agree?
> 
> 
>   Bill Iverson
> 
> bill@... <mailto:bill@...>
> 
> --- In QuadtoneRIP@yahoogroups.com, "kumagaikentaro"  wrote:
> >
> > Hi bill_iverson
> >
> > Linearization Fixed patch (for Windows QTR)
> >
> > http://www.digital-negatives.jp/download.html
> > /
> > http://www.digital-negatives.jp/download/qdensity.zip
> >
> > Please copy qdensity.exe
> > C:\Program Files (x86)\QuadToneRIP\bin
> > or
> > C:\Program Files\QuadToneRIP\bin
> >
> >
> > Please the density values start out low and increase.
> > I tried Lab(L*) values (26.3, 27.6, 31.2, 35.9.....) (EyeOne,
> Colormunki, etc).
> > But I have not tried the Optical density(1.18, 1.24, 1.30, ....)
> >
> > *For paper(positive print) the density values start out high and
> decrease
> > *For Altanative(Negative print) the density values start out low and
> increase
> >
> >
> > Please try it!
> >
> >
> > Kentaro Kumagai
> > http://www.digital-negatives.jp/
> >
> >
> >
> > --- In QuadtoneRIP@yahoogroups.com, "bill_iverson_washington"
> bill.iverson@ wrote:
> > >
> > > I've recently been told that QTR can directly linearize profiles for
> digital negatives by entering 21-step density values read from a print
> made from the digital negative, so that the density values start out
> high and decrease (e.g., 1.30, 1.24, 1.18 ... 0.05).  Sure enough, when
> I enter these values in the linearization tab, QTRgui Curve Creation
> generates new Ink Curves for the profile, which seem to be modified from
> the previous Ink Curves generated simply with the ink description.
> > >
> > > My question is how do I know if my installed QTR has the newest
> version of this digital negative linearization feature?  A posting by
> Kentaro Kumagi in June 2012 (msg. 10358 Re: "starter profiles" for
> digital negatives) provides a link to a "fixed patch for Win QTR ...
> given by Roy [Harrington]" which provides this capability.  I never
> installed such a patch,a but the fact that my QTR linearization tab will
> accept density values running from high to low suggests I somehow
> acquired the capability (I think).  I believe I have QTR 2.7.2,
> downloaded in the past year, but determining just what I have is hard
> since "QTR 2.7.2" apparently still uses the 2.7.0.0 QTRgui Windows
> interface.  My QTR "About" panel and hard drive info indicate I have the
> following modules:
> > > QTRgui 2.7.0.0 file date 3/27/2010 size 10,574,404
> > > QuadToPrinter 2.7.2.0 file date 8/14/2011 size 827,392
> > > QuadProfile 2.7.2.0 file date 9/8/2011 size 917,570
> > >
> > > Sorry to pose such a tedious question, but using the wrong
> linearization feature or using it in the wrong way would make my already
> somewhat time-consuming and expensive efforts to create digital negative
> profiles for PtPd printing even so.  Thanks.
> > >
> >
> 
> 
> 
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>