On Jul 17, 2006, at 7:59 AM, Larry Wangelin wrote:
On Jul 16, 2006, at 8:14 PM, Roger Breton wrote:
Yes, SpectraVision Pro app is ColorPort. As such, there are no limitations
as to the instrument supported, UV-cut or not. Unless I missed something.
This is what I have found in the ColorBurst SpectralVision pdf instruction manual.
IMPORTANT When relinearizing a ColorBurst environment you must use a UV-filtered spectrophotometer.
Using non–UV-filtered devices will lead to undesirable results.
The key word here is RE-linearizing a (existing) ColorBurst environment. That would be true. I would even add "when relinearizing a ColorBurst you must use a UV-filtered spectrophotometer OF THE SAME TYPE AND MANUFACTURER AS COLORBURST USES".
HOWEVER, if you create your own linearization from scratch, as I always do, it's fine to use an un-filtered spectro. Like I stated earlier, as long as the linearization routine calculates the data RELATIVE to the media as opposed to absolute, it should work just fine.
This is also from the same document, Only X-Rite devices are supported for creating ICC profiles in SpectralVision Pro. Both X-Rite and Gretag spectrophotometers can be used for Linearization and PrintCertification.
Seems to me to be a reasonable compromise to restrict profiling to X-Rite-only spectros. I'm not sure that most ColorBurst users appreciate the fact that they're getting what amounts to a $1,500-2,000 profiling package for FREE. It only seems fair that the profiling would be restricted to spectros from the manufacturer of the profiling software.
Of course, now that X-Rite and Gretagmacbeth are joined at the hip, it will be interesting to see if that policy changes in the future.