QTR-Quadtone RIP

Thank you, Brian.  That is very helpful info.
On Jan 25, 2008, at 2:04 PM, Brian Corll wrote:

> The difference between photo black and matte black is that matte  
> black is
> laid down on matte paper as larger droplets because of the much  
> greater
> absorbency of the matte papers. When used on a glossy paper these  
> droplets
> become blobs and spoil the darks. Photo black is "stickier" and is  
> laid down
> as the correct size droplets on glossy paper.
>
> From: QuadtoneRIP@yahoogroups.com  
> [mailto:QuadtoneRIP@yahoogroups.com] On
> Behalf Of Tom Moore
> Sent: Friday, January 25, 2008 1:25 PM
> To: QuadtoneRIP@yahoogroups.com
> Subject: RE: [QuadtoneRIP] Second request for help
>
> > -----Original Message-----
> > From: QuadtoneRIP@yahoogroups.com <mailto:QuadtoneRIP%40yahoogroups.com 
> >
> [mailto:QuadtoneRIP@yahoogroups.com <mailto:QuadtoneRIP%40yahoogroups.com 
> > ]
> On
> > Behalf Of erichocinc
>
> ...
>
> > I'm not able to develop my own curves at this point, so was  
> wondering
> > where there is a
> > collection of QTR curves for specific papers, notably the Red River
> > natural, the Lexjet version
> > of enhanced matte, and various Hanemuele art papers.
> >
>
> Since you're asking about UC black inks, I presume that curves you are
> looking for are for UC ink as well.
>
> The largest repository of curves comes with QuadtoneRIP when you  
> download
> it. Next there are curves in the files section of the Yahoo Groups  
> pages for
> QuadtoneRIP. Finally a number of users, notably Carl Schofield and  
> Paul
> Roark, have web pages that may have some additional curves. Although  
> I don't
> recall seeing curves for Red River natural, there may be an existing  
> curve
> for another paper that is sufficiently close as to suit your needs.
>
> It seems to me that compared to other printers, the 4000 has quite a  
> good
> selection of curves, including a set for Hann. Photo Rag.
>
> > I'm also wondering why there is no "neutral" curve for the Epson  
> papers
> > included with the
> > QTR download.
>
> Usually, where there is no neutral curve, the equivalent is achieved  
> by
> blending the warm and cool curves. The ratio required to achieve a  
> hue you
> consider neutral will depend on the paper you're using and your  
> judgment of
> what you consider neutral.
>
> >
> > Finally, I'd like to understand the differences between the Epson  
> UC2
> > photo black and matte
> > black inks. I am running an Epson 4000.
>
> Aside from the obvious usage difference (Matte ink on matte paper,  
> etc.) I
> can't answer this.
>
> Tom Moore
>
> [Non-text portions of this message have been removed]
>
>
> 



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