In 1998 and 1999 I wrote a 4-part series of articles on Variable-Contrast printing for CameraArts magazine (the “smaller-format” sister of ViewCamera magazine). CameraArts is now defunct in print form however the articles are still available directly through me.
If you have been one of my students and would like something better than the xerox copies of the articles you got in your workshop binder, contact me. I’m offering the Variable-Contrast CD for $30. I’ll even sign it! It’s a single CD with a pdf file which has daisy-chained the four articles together.
Lastly, the illustration photos in the pdf file seem to print a bit on the mushy side with some printers. I suggest printing a single, sample page such as p.23 or p.24 and adjust the contrast and brightness settings on your printer until the images print satisfactorily.