Hi
I'd like to learn what I'm seeing, and what it means.
I use an i1Photo Pro 2 for calibrating my 10-bit monitor and making profiles for my papers.
Today I created a paper profile for Canson Platine, and one for Red River Ultra Pro Satin.
I dropped them both into Color Think Pro (CTP) just to have a look.
Here's what I see: the Platine profile's white & black point is right on the L axis.
The RRUPS white/black point is shifted off the L axis along the b axis, toward blue.
This is with CTP set to display "device gamut". If I set that to Perceptual or Rel Col, the white/black points snap right to the L axis, and match the Platine profile.
Now, these profiles were made using identical settings, swatches, version type, and so on.
The question is why is the L-axis offset on one, but not the other, and only when viewing device gamut?
At this point, I'm wondering if it's that the RR paper has a lot of OBs, while the Canson doesn't, which might make it shift toward the blue when plotted against the device gamut... but I'm guessing.
If someone can educate me, I'm appreciate the knowledge.
Thanks.