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Re: [Digital BW] Re: Non-OBA Baryta papers

2013-11-03 by Ernst Dinkla

http://www.aardenburg-imaging.com/news.18.html
http://www.pigment-print.com/spectralplots/spectrumviz_1.htm

There are more aspects to the use of OBAs that have to be considered 
next to the degradation of the OBA dyes in time.
Papers with OBA tend to have less color constancy in changing light 
conditions (incorrectly called "metamerism").
Spectrometers used for profile creation often are UV-cut so do not 
create an OBA effect in the measurements and the profiling software 
usually compensates that in one way or another. In practice that seems 
to work but is a somewhat arbitrary method. To sum it up; there is more 
precision/reliability in a profile made with a UV enabled spectrometer 
of an OBA free paper than in one made with a UV cut spectrometer on an 
OBA paper. Yet the last conditions are more often encountered.

-- 
Met vriendelijke groet, Ernst Dinkla

http://www.pigment-print.com/spectralplots/spectrumviz_1.htm
December 2012: 500+ inkjet media paper white spectral plots.

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