Thank you Andrew, Rick and Roger for your insight on this. Roger, when you say 'ISO coated may be a better choice', what does that mean? Is 'ISO coated' any profile that meets 12647 standards like GRACoL 2006 or SWOP 2006 ? Also, what did you think about my question below about converting to GRACoL 2006 before sending to the Epson? Thanks again. "Along the same lines, I'm helping a friend setup an Epson 7900 proofing edition with EFI XF 4.1. They send untagged PDF/X-1a documents to the RIP from indesign CS3. We plan to set up the Epson with GRACoL certification and the training videos suggest setting the "CMYK source" in EFI to CoatedGRACol2006.icc Does that mean the PDF/X-1a from indesign (and the included images) should also be in the CoatedGRACol2006 space before it is sent to the RIP untagged?"
So, to conclude, I would personally tend not to use SWOPv2 as the default because SWOPv2 represents an inherently yellow substrate and will render all colors with that tint of yellow that they don't originally have, most likely. I would tend to think that ISO Coated might be a better choice, but again so is SWOP2006_C3.
Best / Roger
On Mar 25, 2012, at 11:08 PM, jeff@bigtopstudio.com wrote:
Roger, when you say 'ISO coated may be a better choice', what does that mean? Is 'ISO coated' any profile that meets 12647 standards like GRACoL 2006 or SWOP 2006 ?
ISO 12647 is a LOT of different standards. The most common is ISO 12647-2 for offset printing but there are also -3, -4, -5 and -6 definitions for everything from newspaper, screen, gravure to flexo printing. Even within 12647-2 (offset), there are at least 5 different definitions for the various paper types and ink colorimetry. If it were me and I was separating for an offset printing process with an unspecified definition, I'd probably default to GRACoL Coated1 for the USA/North American market and ISO Coated/Fogra 39 for all other markets.....but if you can find out some more specifics, you'll be better equipped to separate the job using a more precise profile.
Also, what did you think about my question below about converting to GRACoL 2006 before sending to the Epson? Thanks again.
I don't why converting to GRACoL before printing to an Epson inkjet would be more preferable to any other color space unless I was *proofing* a GRACoL job. For general printing, I would either convert to a color space close to what the gamut volume of the Epson inkjet might be (AdobeRGB would be a reasonable choice) or I would simply soft-proof to the Epson ICC profile and make any necessary adjustments. The key thing here is whether I simply want to print to the Epson using all it's available color space OR do I want to simulate/proof to another printing process...that's two distinctly different workflows in my book.
"Along the same lines, I'm helping a friend setup an Epson 7900 proofing edition with EFI XF 4.1. They send untagged PDF/X-1a documents to the RIP from indesign CS3. We plan to set up the Epson with GRACoL certification and the training videos suggest setting the "CMYK source" in EFI to CoatedGRACol2006.icc
Does that mean the PDF/X-1a from indesign (and the included images) should also be in the CoatedGRACol2006 space before it is sent to the RIP untagged?"
If you're setting up the proofing system to simulate GRACoL then, of course, separating to that profile prior to proofing would produce the best (most accurate) results. On the other hand, you can convert to any CMYK color space/profile prior to proofing but then proof that using GRACoL...what you'll see is how those CMYK *values* will print using a GRACoL print specification.....this would be the same thing as *assigning* a profile to the CMYK values. Of course, if your proofing system can be configured to honor embedded profiles ("tagging") then it doesn't much matter what you've set as the default source profile as the profile embedded in the PDF will override the setting in the RIP....unless you send the file untagged. Regards, Terry ______________________________________ Terence Wyse, WyseConsul Color Management Consulting G7 Certified Expert FIRST Level II Implementation Specialist
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jeff＠bigtopstudio.com
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Terence Wyse