For profiling, I use Profilemaker 5 and Eye One or ICColor
My GCR-settings are - GCR 4 or maxK (strong GCR) - Black start 0 - Black width 20 (from 100)
simulation of pure offset-grey is fine.
In former times I used GCR3 (middle GCR) and black start at 40. In this case, i got a greybalance changing from greenish to reddish. for Ultrachrome (No problem with HP or Canon-Printers with this setting)
Roger Breton schrieb:
I´m mainly doing profiling for Epson Ultrachrome in the field of digital proofing. In this case, it is necessary to use a proofmedia, which has more or less the same paperwhite as the printed reference, to get a visual good greybalance.
So you proof RelCol?
In the field of printing RGB-data, I prefer media with low amount of optical brightners resulting to a paperwhite near a=0 an b=0
Right. Like Tecco papers. I tested them once but I can't source them locally :(
If you wan´t to print RGB-data on photographic paper with medium or a big amount of optical brighteners, there is no other way as to tweak the profile manually.
Sometimes the compensation of optical brightners in Profilemaker or PrintOpen helps.
If you have measurement Equipment with UV-cut, this also can help.
I tried with DTP41uv and 530 + UV-cut filter and still no magic.
But beware, that for proofing both source- and target-profile should be
measured with UV-cut.
Are you sure? If the Source paper has *no* FWA then, in principle, measuring with or without a UV-cut filter should have no effect. But the proofing paper often will exhibit FWA.
Roger Breton | Laval, Canada | graxx@xxxxxxxxxxxx http://pages.infinit.net/graxx
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