CompuServe Thread

#Help me on Pantone

3 messages in this thread
#87150From: Tony CastaldoNov 18, 1993 10:57 AM
I called the service line on this question, and got no help. My question is on the color RUBINE RED C, in the Pantone color book. This looks on the screen and on the printer almost exactly like RHODAMINE RED. Pantone says that RUBINE is 100% Magenta and 15% Yellow, and Rhodamine is 100% Magenta and 6% Cyan, which are the values assigned when I convert from Pantone Spot colors to the CMYK color model. The problem is that RUBINE, on the screen, on the paper, and everywhere I use it, looks like Rhodamine — a definitely magenta color, while in the Pantone color book Rubine is dark blood red. There are other colors that look far more like Rubine on the screen, so I don't buy the argument that this is the closest match we can do. What I want to know is if I produce a negative with RUBINE red, is it going to match the color in the color book, or is it going to be slightly off-magenta? How do I find this out without actually producing the negatives and trying it? Why can't somebody look at the book and tell me what is going on with this color? For the record, I have perfect unaided vision and I am not the least bit color blind or insane.
#87354From: Mike Raymond [COREL]Nov 19, 1993 9:31 AM
Hi Tony! Post this in the DRAW 4.0 section of this forum, and one of Corel's technical support specialists might be able to help you out! Good luck!
#87545From: Mac TownsendNov 20, 1993 9:54 AM
IMHO: first of all, don't believe the screen. You are in an entirely different color space. Second, don't believe the process color mixes to get a PMS color (almost every app that purports to do pantone w/process uses a *different* mix…believing, apparently, that calling a sheep's tail a leg is good enough for most people). The differnece listed of 4% is awfull small and well within the range of normal dot gain/loss during imagesetting, plating, and printing. In either case, whether the numbers you have are good or whether they are not, if you really want Rubine red you should buy a can of rubine red ink and use it. (and even there, one ink maker's version will differ slightly from anothers). The process approximations are only that: *approximations*. Some of them are way, way off…and that *is* as good as they can do. Reproducing PMS colors with process colors as another one of the "lies" the dtp vendors have been telling us for years <g> As a sidebar, did you know that there are different types of process inks, magenta for instance, and they work a little differently even in notmal process work? So. imagine