QTR-Quadtone RIP

I have one more question:

When doing BO, I typically edit my files in RGB and just before 
printing, I convert to GS.

When using QTR, at what point do I convert to GS? Just before 
printing.  Earlier it was mentioned to edit the image in GS.

Also, if I plan to do toning with QTR, I presume I should be toning 
the image in PS as well.  Correct?  But, won't the color (toning) 
info get lost when I go to GS.  

So toning is really handled by QTR and there really is no way to see 
the image toned in PS when editing in GS. 

Sorry if it sounds like I'm babbling.

--- In QuadtoneRIP@yahoogroups.com, "David Sinai" <dsinai@y...> 
wrote:
> Great, I'm on my way.  Thank you.
> 
> 
> --- In QuadtoneRIP@yahoogroups.com, "Louis Dina" <lbdina@c...> 
wrote:
> > When you use the Convert to Profile option, you will select 
either 
> > Gray Matte or Gray Photo at the destination profile.  In that 
same 
> > dialog box, you will see a BPC (Black Point Compensation) check 
> box, 
> > and another drop down box where you can choose your rendering 
> > intent.  Choose Perceptual.  That ought to do it.
> > 
> > Lou
> > 
> > --- In QuadtoneRIP@yahoogroups.com, "David Sinai" <dsinai@y...> 
> wrote:
> > > Thanks Lou.
> > > 
> > > What is BPC and perceptual intent?  Where do I go in PS?
> > > 
> > > David
> > > 
> > > --- In QuadtoneRIP@yahoogroups.com, "Louis Dina" <lbdina@c...> 
> > wrote:
> > > > David,
> > > > 
> > > > Embedded profiles are ignored by QTR.  It does not "do" 
color 
> > > > management.  It simply looks at the raw numbers in the files 
> and 
> > > > outputs the data.  
> > > > 
> > > > There are two or three popular ways to get a print that 
> matches 
> > > your 
> > > > screen.  
> > > > 
> > > > 1.  Use Roy Harrington's Gray Lab profiles.  Edit in Gray 
Lab 
> > > until 
> > > > you like the way the image looks.  On a PC, you then convert 
> your 
> > > > finished file to the Gray Matte profile for printing on 
matte 
> > > papers, 
> > > > or the Gray Photo profile for glosy, luster, semigloss 
> papers.  
> > > This 
> > > > remaps the tonal range to fit nicely on these papers.  Use 
BPC 
> > and 
> > > > Perceptual intent when converting.
> > > > 
> > > > 2.  Use Carl's soft proofing profiles.  You print a 21 step 
> > > grayscale 
> > > > and create a small profile with your spectrophotometer and 
> > > profiling 
> > > > software, just like you would any profile.  When you soft 
> proof 
> > in 
> > > > Photoshop, click Preserve Color Numbers.  You will see both 
> the 
> > > tonal 
> > > > range and coloration of the profile.
> > > > 
> > > > 3.  Some people create dot gain curves in Photoshop to 
> visually 
> > > match 
> > > > the screen display to the printed output.  Paul Roark's site 
> has 
> > > this 
> > > > procedure written out.
> > > > 
> > > > I believe Carl's profiles are cross platform.  He has just 
> > > compressed 
> > > > the file using Stuffit.  Should work.
> > > > 
> > > > Lou
> > > > 
> > > > --- In QuadtoneRIP@yahoogroups.com, "David Sinai" 
> <dsinai@y...> 
> > > wrote:
> > > > > Hi,
> > > > > 
> > > > > I've been doing BO for quite some time and I'm ready for a 
> new 
> > > > > challenge.
> > > > > 
> > > > > I just dowloaded QTR and I am eager to try it. But, I have 
> two 
> > > > > questions before I start:
> > > > > 
> > > > > 1) When saving the file as grey scale, do I need to imbed 
a 
> > > > profile? 
> > > > > Without imbedding a profile, how would QTR 
> > > > know/understand/interpret 
> > > > > the tones in my image? 
> > > > > 
> > > > > 2) I downloaded the Carl Schoefield's soft
> > > > > proof file for the 2200 and QTR?  I am running a PC
> > > > > and the files that I received were *.sit files, not *.exe 
> files.
> > > > > 
> > > > > On the QTR website, the directions say: 
> > > > > 
> > > > > "See Carl Schofield's website for Soft Proofs of 2200 
> profiles. 
> > > To 
> > > > > use the soft proofs, simply install them by double-
clicking 
> > > > > InstallProofs. You have to restart Photoshop and then 
under 
> > > > > View>Proof Setup you will see all the proofs."
> > > > > 
> > > > > Are these files for the Mac only?
> > > > > 
> > > > > I would like to soft proof the image in PS before I print 
in 
> > > QTR. I 
> > > > > am running a PC with PS CS and Windows XP.  Can someone 
> point 
> > me 
> > > in 
> > > > > the right direction?
> > > > > 
> > > > > Thanks in advance for your help.
> > > > > 
> > > > > David