Alley in Pisa, Italy

by Lars Kotthoff

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1

Your iMac display is a high quality, IPS display, and can be calibrated quite easily. Any of the top colorimeters will do: Sypder, XRite, etc. The only downside of the iMac is that it does not allow the display to be dimmed to the same degree as some external monitors. Brightness is a critical part of calibration, so this is a well known limitation. So if ...


1

Taking an image "Outside" does not guarantee you D65 color temperature, unless measured. Also without having drivers adjusted to provide a D65 simulation on your monitor, the results can not be accurate enough to be called calibration. Even with the cheap calibration devices available it is difficult to sometimes get an accurate match between monitor and ...


2

In theory, this seems fine, but a cheap color calibration device gives you steps 1 and 2 already done, plus 3 done with many, many more samples than a color chart, and 4 done automatically. I'm willing to bet that inaccuracies in the first steps plus the limited number of samples add up to less-than-ideal results. With a "real" colorimeter costing under ...


0

Dan Margulis covers this subject in his books- he claims to have taught someone who's colorblind to correct the color in pictures! And I'd believe him. It's been a while since of read his books, but this subject gets best treated in "Professional Photoshop" and "Photoshop LAB Color. He's a great writer.



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