QTR-Quadtone RIP

Basically you want to order the measurements (either L values or density):
white to black -- for regular prints
black to white -- for negatives.

It recognizes L vs d by the size of the numbers.

Roy


On Sat, Jun 15, 2013 at 6:35 PM, kumagaikentaro <homepage@...>wrote:

> Hi bill_iverson
>
>  I realized that I had been wrong.
>
> *For paper(positive print) the L* values start out Highlight to Shadow
>
> LINEARIZE="96.74 93 88.19 82.72 77.16 71.92 66.64 61.62 56.83 52.7 48.63
> 44.81 41.48 37.83 34.41 31.15 27.96 24.93 22.87 21.09 18.95"
>
>
>
> *For Altanative(Negative print) the L* values start out Shadow to Highlight
>
> LINEARIZE="26.3 27.6 31.2 35.8 39.6 42.8 46.2 47.9 50.4 52.9 56.4 60.5
> 64.1 67.2 70.5 73.4 75.9 78.6 81.3 86.3 95.0 "
>
>
> I don't try about "Optical density" (ect 0 ~ 1.3) @I don't have a density
> meter.
> If you're using "density meter",
> Please convert the "Density" and "Lab"
>
> Companding Calculator
> http://www.brucelindbloom.com/CompandCalculator.html
>
> And "Linearization Checker" is useful
>
> http://shopping.netsuite.com/c.362672/site/techdocs/Custom_Profiling_Package.zip
>
> Regards,
> Kentaro Kumagai
>
>
>
>
> --- 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.
> >
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>


-- 
Roy Harrington
roy@...
www.harrington.com


[Non-text portions of this message have been removed]