Digital BW, The Print

Paul:

Thank you for your input. Nothing like getting to the source ;-)

I have read the article you listed and several others of yours. Im understanding some of this, but don't understand what you mean by, "use a Photoshop curve with the green curve from 0-100, or use QTR to do this, you'll see the tones."

I'm not fully up to speed on the QTR, though trying. I don't see how it adjusts tones. 

As for Photoshop, I saw the ability to bring in files to the curves adjustment tool and modify the 'coloration' but I'm not sure this is what you are referring to. If you are, should I be looking for a tone curve that has green in a straight diagonal line?

Homer