QTR has two global adjustments for tonal control: Ink Limit and Gamma. Ink Limit will increase or decrease the density of the print primarily in the shadows, and to a lesser extent, a bit in the mids. Gamma will increase or decrease the density of the mids, making the print appear darker or lighter. These are very practical adjustments to use when you don't have custom curves created specifically for your personal printer and you need to bump things into place. Beyond this, there's the QTR Curve Creation program but you'll need a densitometer or spectro to use it (I think it may work ok with a flatbed scanner, too).
Hope this helps,
Will
spsguru wrote:
Will - thanks for the pointer. With these curves the outcome was
better. I ordered the Bradford trail pack fo paper - and the Bradford
curves did improve the print.
I have to say at this point for me it still is not worthy of the
investment above IP6 - but - I am new to QTR and if I can leave how to
tweak the curves that may change. IP is just so easy
Thanks again for the help
Sean
--- In QuadtoneRIP@yahoogroups.com, Will wrote:
> Sean,
>
> The QTR K7 profiles are listed for down loading here
> http://homepage.mac.com/royharrington/FileSharing3.html . Also try
using
> the newer version of QTR that is listed at that link.
> Are you on a Mac or a PC? If on a PC, simply work up your grayscale
> image as you normally work, then when you're ready to print, convert
the
> image from you're working grayspace to Gray Gamma 2.2 and save as a
> Tiff. Open the saved file in QTR and use the print settings in the K7
> instructions.
> I'm curious to hear you're impressions of these inks. I just received
> mine, but since I'll be out of town for a while, I'm not going to load
> them up until I get back.
>
> Will
> spsguru wrote:
>
> > I am new to QT. I am trying it as it is the RIP to use with the new
> > InkjetMall Epson 2200 K7 inks.
> > So far I am not happy at all with the output as it states I need to
> > go to Gamma 2.2
> > Once I do that the image looks as if it takes on a green cast -
> > sounds weird I know.
> > Also there is poor tonal transitions.
> > So ... do I need to calibrate, add curves, etc....
> > I am following the directins for choices in the drop down boxes - but
> > I do not understand
> > where I need to choose different profiles. There is only one curve to
> > choosse frm - K7 2880
> > beta
> >
> > I am not sure how to proceed as I follow the directions in the
> > printout sent with the inkset -
> > and quality is very inferior to Imageprint - any help would be
> > appreicated
> > Sean