I think the easiest way would be to make an icc profile with your spectrophotometer. In one of my printers, the hpz3200, there is a built in spectro and is very straightforward. I guess this is what spectrophotometer are made for (at least in the printing industry).
Qtr has a way to make either rgb or bw icc profiles. I use qtr and print tool with the epson 4800, though mainly for digital negs.
Nice to see there is someone else from tuscany.
Ciao
Il gio 30 ago 2018, 22:27 mangini.lorenzo@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> ha scritto:
Hello from Firenze, Italy. Just discovered this group and I'm glad to be part of it. I'm studying, yet, what QT is able for and what it can do. I'd have many questions to ask you Masters, but the first one is: is there a way to connect the a/b channels readings with spectrophotometer with a Photoshop curve that can be loaded into the Toner/Toner 2 curves to balance the interactions of blacks, using K3 colour inks? I mean, exactly: if I have a certain reading of, for instance, -2,35, how can I translate that value in a Photoshop curve or ATF file so that I can load it up to the LM channel to counteract the cyan shift?
Thanks and Happy Printing
Lorenzo