July 2016 - colorsync-users

CMM benchmark/features
by Claudio Wilmanns 14 Jul '16

14 Jul '16

Hi all, does somebody know of a benchmark (speed, accuracy,…) and/or a feature comparison/limitations of current CMMs? For example ColorSync, Adobe CMM, littleCMS2, Argyll CMS, others…? Is ink purity preserving or multichannel support something that the CMMs offer out of the box or do these need to be implemented as a special features on top of the CMM as separate processing (by bypassing the CMM) or by extending the CMM capabilities? Or is this up to the creator of a device link profile and the CMM ‘dumbly’ applies the device link profile to the raster data without even thinking about it? If so, is this true for all CMMs mentioned above and how can I test this? Thanks Claudio

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Colorimetric Advantage of ColorBurst Overdrive ??
by Rick Gordon 13 Jul '16

13 Jul '16

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ColorMunki & Shadow detail
by Dennis Dunbar 11 Jul '16

11 Jul '16

A photographer client called me in to check the calibration & profile for her Windows machine. She’s using an Asus monitor and the ColorMunki system for calibrating and profiling her system. (I know this is not a very accurate system, but it’s what she had and wanted to use.) After running the calibration and profiling then checking with some target images the profile overall looked pretty good, neutrals were neutral etc. But I noticed on checking a Black to White gray ramp the shadows looked a bit bright. In comparing some of her shots, primarily women with dark hair again the shadow detail in the hair looked a bit too light. After suggesting we try my EyeOne Profiler with my spectro photometer she insisted on staying with the ColorMunki so we tried a few different settings, mostly adjusting the luminance values of the display. Setting this to around 100 cd/M2 she seemed more satisfied with the match, but the shadows still looked too bright to me. Is this something that is typical with the ColorMunki? Or is there something else we could have adjusted with the display to get a better result? Thanks! Dennis Dunbar

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