Alastair M. Robinson wrote:
LCMS can create a 3-profile proofing transform that does this from source data in a single step (and can mark out-of-gamut colours with an alarm colour, too, if desired) - I think that's what Craig's referring to.
Right, but you can do that with Argyll too, if you trust such a process. Simply string your RIP simulation transform ahead of the proofing transform using cctiff. You are assuming a lot about the color transformations being done in the RIP though, which is why I've never seen the point of such emulation modes. Much better not emulating it, instead use the real thing. You are in trouble with originals that have complicated color treatment too (ie. different colorspace source objects in them, which is not atypical of PS and PDF.)
Agreed - if you do devote a press run to profiling (which we've done before) it's worth putting some photos on the sheet along with the patches - just so the press operator has something on the sheet that looks like a "real" job. It also gives you something to evaluate your proofs against, because you'll notice colour errors in a photo with skin-tones way sooner than you will a random field of coloured patches.
The real benefits of profiling the press depend on the press being set to the same operating state all the time, and not adjusting it for each job that comes through. This often seems foreign to old time press operators. Graeme Gill.