Re: Munki Business, short term color drift.and iterative profiling
Re: Munki Business, short term color drift.and iterative profiling
- Subject: Re: Munki Business, short term color drift.and iterative profiling
- From: Mark McCormick-Goodhart <email@hidden>
- Date: Mon, 1 Dec 2008 20:51:32 -0500
So heres' my question about Color Munki. Given the market it is aimed
at, it is bound to be used frequently to build profiles for dye based
inkjet systems. Dye based systems have considerable "dry-down" issues.
I've measured color changes over days and even weeks on the order of
deltaE >5. In general, I print targets and let them wait a week or
more before measuring, making sure they are exposed to a healthy
humidity cycle (>60%RH) during that time as it promotes the dye
diffusion and helps to settle the final color state. Not too big of a
deal when it takes just one target to build the profile. However, even
the conventional wisdom of a 24 hour dry down period seems rather a
nuisance if you need to print targets iteratively as is apparently
required by the Color Munki concept of print-measure-print again-
measure again profiling. Perhaps, the color errors I speak of are well
within the needs of the "amateur" market that this product has been
designed for, but it does appear a lot of pros are also paying
particular attention to the Colormunki profiling engine. So, I'm
interested in this learned group's thoughts on the short term color
drift issue when profiling dye based inkjet printers. It seems to me,
at least on general principles, that the i1 and the Spyder 3 print
products, albeit more conventional in their use of a single, larger
count target, have a clear advantage when measuring dye based inkjet
systems.
cheers,
Mark McCormick
http://www.aardenburg-imaging.com
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