After outputting a 20 step grey scale for making a K6 QTR curve I see that the paper in question - the new Crane Museo Portfolio Rag - reverses density in the last step. The final patch reading significantly lighter than the next to last black patch. This has been the experience with the previous Museo and Museo Max papers and confirms others observations of the new one as well. I don't know how they manage to keep doing this with their coating on an otherwise nice paper. I realize I would need to limit the ink in QTR when remaking this greyscale for measurement. My question is - does one make a preset for using this ink limit amount when using this curve on all subsequent prints from this curve in the future? I would assume so. Just haven't done it yet. John
Message
Tonal reversal with some papers
2007-03-14 by john dean