Hi all,
I try to make my very first curve for some baryta papers qith QTR and newly purchased Color Munki spectro (for 3880 with Ultra Chrome VM inks).
Made separation page, set default ink limit to 75, measured relation of LK and LLK to K and then problems appear.
1) I do not fully understand Ink Limit term for each channel and how to set proper values. Is it somehow measurable? of just try-and-error? I have read number of documents, but haven't found satisfactory answer.
I also tried built in curves: UCpk-raw-neutral and tried to linearize it. Strange thing: curve without linearization looks to give perfectly linear printout (or at least smooth). When I put linearization results (L measured), the bull-eye has clearly visible bumps.
2) Does anyone ghas an idea about the reason?
3) Shall I use 21 steps as in QTR catalog (i.e. without built in color profile) or evenly L spaced one with Gray Lab color space?
4) What should be default built-in profile for BW picture printed to make it linear and suited for QTR and the whole curve creation and linearization process (Gray Lab, GG1.8 or 2.2)?
I can't move forward with my exercise withour knowing the answers - another one printer (1400) also waits for its curves and future Piezography :-).
Any help highly appreciated!