On Mar 15, 2016, at 1:52 PM, Joe <joemailgroups@gmail.com> wrote:
I must use the eyedropper in ACR and read colors with colorimetric accuracy so that the values for real life targets are the same I measure from the same color patches on screen.
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Is there any solution you can recommend ?
I'm afraid not. The tools designed for colorimetric accuracy aren't very user friendly. The user friendly tools have serious problems with colorimetric accuracy. If you want something easy and are willing to sacrifice accuracy, get a ColorChecker Passport and use the DNG profile creator program that ships with it. The Passport is an indispensable tool, the best chart you can take in the field and better than most charts designed for the studio, so it's worth the money itself even if you never use the software. But the software will improve your results in ACR. If you want accuracy and are willing to work at it, start with Raw Photo Processor and learn how to control lighting in the shoot and how to get your white balance set right and so on. You'd be very hard pressed to create better general-purpose camera profiles than the ones Iliah ships with RPP...but they're general-purpose profiles. When you get to the point that you know why you'd want a specific-purpose profile, that's the time to go down that rabbit hole -- but you'll still want RPP to develop the images. Sorry I don't have an easy answer. As the saying goes, "Good, fast, cheap: pick two." Cheers, b&