Re: more and more and more solarplate
Speaking of that... are you using color >positives or black for these polymer plates? Isn't PDN all >about color negatives for UV blocking? Susan, Yes, PDN is about color negs, however, you can do a curve calibration with all inks, black ink etc. You still need to find a standard printing time, you still print a 101 step palette in your process of choice and measure densities to plug into the spreadsheet which in turn gives you the curve. The only thing you would not be doing is finding the appropriate color to print that process in with the CDRP, so one step less. That said, in side by side all inks vs a colorized tonal palette, it appears to my eyes that the colorized printed a smoother print than all inks. I have not gone back and redone this test to see if it is a fluke, but it totally makes sense. All inks is laying down individual dots of ink color, and solarplate or KM73 plates respond drastically different to different colors--some rows on the CDRP are white, some all black. It stands to reason that these individual dots of color will print side by side individual dots of different density in the plate. Whether that dottiness is visible or, in fact, helps the plate work better to hold more ink is up for grabs. If you have lots of plates to work with, when you find your PDN color to use, just print a 101 step palette side by side with an all ink and see if you notice a difference. Chris Assistant Professor of Photography Photography Option Coordinator Montana State University College of Arts and Architecture Department of Media and Theatre Arts, Room 220 P.O. Box 173350 Bozeman, MT 59717-3350 Tel (406) 994 6219 CZAphotography.com |