QTR-Quadtone RIP

Hello Jeff,

thaks for your reply. I do not understand quite well why it would make
any difference between assigning or convertng the image from the
scanner. That's the image I start with and shold not make a difference
in the softproofing problems I am incurring.

Regarding your last question, no, there is no consistency in the
mismatch between scren and prints. I also modified the ICC profile
obtained with QTR by using a profile editor so that the print would
match the screen for a certain print. However, next print (from a
different image) would not match the screen again.

    Daniela




--- In QuadtoneRIP@yahoogroups.com, "Jeff Kohn" <jkohn@...> wrote:
>
> 
> > Part B): Editing and printing
> > 1) Open in PS CS2 a tiff immaged scanned with a Nikon 5000ED
> > 2) Assign the profile gray-lab
> 
> This scanned TIFF, does it have a profile when you open it? If so
why are
> you "assigning" the gray-lab profile? Try converting instead. Assign
should
> really only be used when you have an untagged file and you know what
profile
> it should actually have associated with it.
> 
> > 3) Edit at will
> > 4) When editing is complete, duplicate the image
> > 5) Switch on softproofing for one of the two images, by using 
> > the ICC profile obtained in part A). In the softproof setup, 
> > use perceptual, BPC, Simulate paper color and simulate black 
> > ink ( I have tried other combination of the switch, but this 
> > seems to work the best)
> 
> I've found the Simulate paper white/black ink to be very poor
predictions of
> what the print will actually look like, I leave these diabled.
> 
> > 6) Add a layer curve to the sofproofed image and adjust until 
> > it matches the non-softproofed image
> > 7) Save the file (no further profile conversions)
> > 8) Open the file in QTRgui
> > 9) Print
> > 
> > The workflow looks straitghforwad. However, the print never 
> > matches the screen. The only thing that puzzles me a bit in 
> > my workflow is that I use an untagged file (21-step.tiff) in 
> > the print for the ICC profile generation while I use a tagged 
> > file (with gray-lab assigned) in the final print. Where the 
> > softproofing get the information that my working space is a gray-lab?
> 
> How is the print different from the screen? Is there any consistency to
> this? 
> 
> Jeff
>