Digital BW, The Print

"remononaz1" <homershannon@...> wrote:
>

> Am I correct that the zip file you are referring to is the file http://www.paulroark.com/BW-Info/1400-Profiles.zip in the document UT14.pdf?


Yes.

 
> These profiles do not include RR Arctic Polar Gloss. Are any of them well suited for that paper? If not, how would you go about changing the ramp without changing the color curve / cartridge assignments? (Maybe I can answer my own question: using an .acv to control the cartridges, run QTR to create a new .icc then run the new .icc with the .acv?)



Yes, find the acv curve that is for the right type of paper -- glossy or matte -- and has the tone you want.  Then print an Adobe RGB 21-step test file with it.  Read the test file and dump the text output into QTR's Create ICC-RGB.  That should linearize the curve for the new paper.  See http://www.paulroark.com/BW-Info/Embedding_Photoshop_Curves_in_ICCs.pdf for more information on making these ICCs.

If you want to change the tones of the curve, note that the cyan and magenta channels are the same density.  So, you can raise and lower the curves, point by point, to change the tones and have the final densities stay close enough to linearize with Create ICC-RGB.


> 
> Also, to make these perform, I need to load the .acv file into the curves profile in the image and then print with appropriate .icc. Correct?


The curves end up in the ICCs.  After the ICC is made, you edit a grayscale file and print it, without a curve, loading the ICC in the Photoshop print (or print preview) step.

Hope this helps.

Paul
www.PaulRoark.com