Could you measure the degree of brighteners present in Canson Platin Fibre Rag for me? I have no means of doing that and there is no data about it in the above mentioned sources.
Canson Platine Fiber Rag is OBA-free. Whitepoint information about this paper and other new papers will be added to the Aardenburg database within the next month or so. Platine has a high L* (lightness) value with a* and b* essentially zero when measured for D50 illuminant condition which means under D50 lighting or something similar (5000K sunlight) it will look neutral, appearing neither cool or warm.
BTW, although Canson Platine is OBA free, Canson baryta photographique has a moderate level of OBAs. It will also be added to the database soon.
I really like the texture of both papers very much, but they are very different. As noted by others, Platine definitely has a texture but it is tightly ordered and very pleasing to my eye, and it has a rare quality that even after spraying with a thin coat of acrylic (like HN protective spray or Premier Print Shield) it's final finish is equally appealing if not more so. Canson Baryta Photographique is my personal choice for the most "traditional air-dried F surface photo paper" appearance of all the "traditional photo" inkjet papers I've seen (and I've seen just about all of them). It's gorgeous, but the moderately high level of OBAs are cause for concern in terms of whitepoint stability over time. But one can not, and I must emphasize this point,
cannot accurately assess the impact of the OBAs on whitepoint stability over time without product-specific testing. That testing is now getting underway for these two papers using two popular OEM ink sets, Canon LUCIA and Epson K3VM. I'd love to include HP Vivera pigment as well, but I don't have access to this platform and no AaI&A members have submitted yet.
kind regards,
Mark
http://www.aardenburg-imaging.com