Digital BW, The Print

Hi
I spoke to the people at Lyson in Germany  last week. They said that the 
combination of lyson inks and paper are set up to have neutral results 
without metamerism with the use of "Normlicht" which to you means 5000°k. 
Which basically means outside this temperature you will get some form of 
metamerism. The coatings of other papers are different therefore you will 
have different effects with different papers at different light temperatures. 
Each of us has a different tolerance to what we find acceptable.
Regards,
Paul Mapstone
Cologne Germany