Hi Neil, Neil Barstow wrote
> I guess you're referring > to a printer testing process which I introduced a while back. Yes I am. I'm using your Greyscale Step Wedge Test files in an attempt to work out the best printer settings to use with Lyson Fotonic Inks and various paper stocks. Thomas Holm wrote > Profiling a linear device can yield accurate results with only about 80 > patches. Profiling one with crossover curves here and there and a huge cast > may require thousands and thousands of patches for accuracy - and most > probably accuracy in this case will cost some posterization. So do I take it as 'given' that if I am using non OEM inks and / or papers I should be making a custom linearisation for each printer setting and paper combo that I wish to then make a custom printer profile for ? And that doing this with a Greyscale Step Wedge 'by eye' is in fact not very satifactory ? As an aside, it appears you are also saying that it is not really possible to get an accurate linearistion with non OEM inks and papers without going through a RIP ? Best wishes, David =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
