but the 2015 CI Platine seems to be slightly (3-4%?) more reflective than what I am assuming is 'new stock'.
Howard,
The Lab L values are like this:
Canson Platine 11-2012 97.0
Felix Schoeller 09-2014 97.4
Canson Platine 01-2016 97.7
Epson Platine 01-2016 98.3
Red River Palo 01-2016 98.4
Arca Superior 01-2016 98.8
MediaJet Silk 11-2016 98.6
Date of measurement quoted, which does not indicate date of introduction or date of manufacturing of the papers, in general I get samples faster from distributors than the big companies, faster from the EU than the US. Chasing for Felix Schoeller samples on the Photokina 2012 but did not get them, for distributors only, on the Photokina 2014 that restriction was gone.
And yes, I would like to measure an even more recent sample of the Canson Platine for its L value and see what the plot looks like.
Met vriendelijke groet, Ernst
http://www.pigment-print.com/spectralplots/spectrumviz_1.htmMarch 2017 update, 750+ inkjet media white spectral plots