QTR-Quadtone RIP

Hi David,

Yes, I have read that documentation but what exactly is the Source Space of the Untagged 
Calibration Files in QTR.  In other words, when Roy (I am guessing) was creating these 
"target" files, what was HIS Working Space? When we open up a Calibration File to linearize 
or calibrate the QTR curve we open up an UNTAGGED file - even if you tell Photoshop NOT 
to Color Manage this file it still converts the information into the present Working Space.  
This is fine if your Working Space is the same as the Working Space in which the file was 
created but, if not, it will not be displayed correctly on screen.  Since this is the beginning 
of the QTR Calibration process I think it is important to get this right.

If the Calibration Files were created in QTR Lab Space then that should be designated as 
the Source Space BEFORE any Calibration Files are open - but, seeing as they are untagged 
there is no way of knowing (that I can see) what the ORIGINAL Source Space of the files 
were.

I would like to ask you more about your workflow but don't want to flood the post with too 
many specifics at once.  Could you please let me know if the above makes sense to you 
and/or if I am missing something that is right in front of me regarding the native Source 
Space of the Calibration Images for QTR?

Regards,

Cody


--- In QuadtoneRIP@yahoogroups.com, "dmwket" <dmw@...> wrote:
>
> Cody,
> There are three Gray color spaces included with the QTR software; Gray Lab, Gray Matt 
> paper and Gray Photo Paper.
> 
> Roy has included a paper in the QTR documentation in the CurveDesign folder that 
> describes how they can be used.
> 
> I have configured CS 3 to use the Gray Lab space as the Gray working space. This 
permits 
> me to leave my B&W images in the "native" working RGB space.
> 
> Thus when I get to the Print dialog and select Photoshop Manages Color, the working 
> space shown is Gray Photo Paper or Gray Matt Paper depending on the paper it will be 
> printed on.
> 
> Then when going to the QTR printer dialog I can select the paper preset and print.
> 
> Using this approach I can print onto different papers using QTR without having to do 
> additional work to get a soft proof that matches the print.
> 
> David 
> 
> --- In QuadtoneRIP@yahoogroups.com, "cteditions" <cteditions@> wrote:
> >
> > Hi Harry & John,
> > 
> > I originally posted this and thank you for your feedback. In thinking about the 
> conversion 
> > to Grayscale from RGB I have stumbled upon another inquiry... Do we know what 
Source 
> > Space the grayscale QTR Calibration/Linearization files were created in.  I understand 
> that 
> > we are not to color manage BUT Photoshop nevertheless always converts "Untagged" 
> files 
> > to the Working Space on the fly.  This might require a separate post and would be 
good 
> > for all QTR members to know... Maybe I have missed something but I don't see where 
> the 
> > documentation talks about the Source Space that the "Target Files" were created in. 
> > Knowing this is instrumental in creating a good CMS is it not? Your thought please...