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| p.1 #11 · p.1 #11 · Need Mpix Pro ICC profile for Hahnemuhle Fine Art matte please |
"If you correct your work in ProPhoto color space and convert to Argb for a print file and send it to a lab that then loads that file into its workflow just how will that be different than converting to the profile of the printer"
Well, the big advantage, of course, is you get to choose your rendering intent when you convert. That's huge, especially when dealing with limited gamut printers like Lightjets or inkjets on matte papers. If you're like me, you might even make two conversions - one using Relative Colorimetric and one using Perceptual and blend them together for the best result. I actually use this more for offset lithography than photographic prints, but it's a great technique.
If a lab is not supplying you the most up to date profile reflecting the current state of their equipment, then they're not a lab I want to be dealing with. Any decent lab with post updated profiles as necessary. Not sure how often Epsons actually need their heads replaced, but that's beside the point anyway.
I never mentioned ProPhoto RGB as a working space, because it's one that I almost never use, but for those that insist upon it, it offers up even more problems when printing to smaller gamut devices. You're forced to use Perceptual rendering more often in order to effectively deal with out of gamut colors. Then, the issue of how the profile was made, who made it, what software, and what parameters were used when generating that profile become important.
In addition, if you had a ProPhoto RGB file and wanted to go to print, you'd most likely be better off going directly from that to the print profile, as the intermediate conversion you suggest to Adobe RGB leaves you no choice of rendering intent - you get RC no matter what you choose in the C2P menu.
What lab did you say you worked for