Digital BW, The Print

In a message dated 6/6/07 6:29:11 PM, michele@... writes:


> Tobie, I made a profile reading the 255 patches + the extended grays
> on Hahnemuhle FineArt Pearl. I then opened the 21steps wedge I found
> in the QTR installation, printed using the PFP profile and read the
> patches; here you go my readings:
> 

I've never seen this type of red bias in PFP2 profiles. Where did that 1.5 to 
2 points of red come from? The same device read the patches to build the 
profile as read the patches afterwards. If it had seen neutrals as red the first 
time, it would have neutralized them in the profile building. I've profiled 
numerous papers this way, and not seen this effect. Is the QTR target a neutral 
RGB file? What settings did you use in printing it, and what profile was tagged 
to it when it was printed?

C. David Tobie
Product Technology Manager
ColorVision Business Division
DataColor Inc.
CDTobie@...
www.colorvision.com


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