QTR-Quadtone RIP

Lou,

yes, thank you that does clear things up.

Since I'm only using Elements on the Mac, which doesn't have any option to print with a 
profile but will honour an embedded one, I will be obliged to convert to the profile within 
Photoshop on the PC, just as you do.

And yes, on a Mac QuadTone simply presents as another printer with some custom dialog 
settings for the various options: curves, ink limits, etc.

thanks again

andrew

--- In QuadtoneRIP@yahoogroups.com, "Louis Dina" <lbdina@c...> wrote:
> Andrew, you are right that QTR ignores ICC profiles and color 
> management as we normally use it for color images.  QTR just takes 
> the numbers in the file and sends them to the printer using the 
> formula and curves of your chosen profile(s).
> 
> If you edit a file in the Gray Lab workspace, you have the numbers in 
> the file mapped a certain way.  When you convert to Gray Matte or 
> Gray Photo, those numbers are remapped to work better with the 
> dynamic range of the paper.  So, the numbers in the file change, and 
> when QTR prints, it uses these new numbers, which hopefully match up 
> well with the paper being used.
> 
> On a Mac, you apparently can print directly from Photoshop.  In this 
> case, you would Print with Preview and set up Gray Matte as your 
> destination profile, using perceptual and Black Point Compensation 
> (if printing to matte paper).  This will do the conversion on the 
> fly.  In Windows, I have to convert to the final print space first 
> then import that into QTR for printing.
> 
> Hope that clears it up.
> 
> Lou
> 
> --- In QuadtoneRIP@yahoogroups.com, "andrew" <andrew@a...> wrote:
> > I'm using QuadTone on a Mac. For various reasons I have Photoshop on
> > a Win2K PC 
> > instead of the Mac. I prepare the images on the PC, save as TIFF,
> > grayscale, gray gamma 
> > 2.2. I then use Photoshop Elements on the Mac to open and print the
> > image.
> > 
> > I'm confused by the existence of the Gray Matte and Gloss ICC
> > profiles. I've read that 
> > QuadTone ignores embedded profiles, but also that one may convert
> > one's image to these 
> > profiles.
> > 
> > I'd appreciate any guidance on whether these profiles, and the Gray
> > Lab space, are 
> > applicable to my current workflow and on understanding their 
> function.
> > 
> > many thanks
> > 
> > andrew