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Yup. Issues like that have trained me to fear and avoid anything that says "CMYK" or "gamut" or similar, not because they're beyond comprehension, but because f

Yup. Issues like that have trained me to fear and avoid anything that says "CMYK" or "gamut" or similar, not because they're beyond comprehension, but because for many use cases the whole thing is an unnecessary pantomime. And it's often silently switched on by default, waiting to screw things up for you. Blender does similar things - in order to get what you intended to be pure black produce 0x000000, and what you intended to be pure red produce 0x0000ff, you have to dig down somewhere - "post processing," I think, because they suffer from some fantasy of being Pixar - and switch something to "raw", and as I remember that isn't even the whole story and there's some other tweaks to make too, just to make black output black and red output red.

PaulHoule 2y ago
Last summer I looked a lot at "print on demand" services of which I'd call out https://www.contrado.com/print-on-demand https://www.contrado.com/print-on-demand and something I found amusing was that almost all of them will only take files in sRGB format even though they actually support a gamut which covers some colors better than sRGB and other colors worse. My monitor supports Adobe RGB and covers both spaces pretty well. I think, however, that they have more quality problems if people send files that have different color profiles so they just take sRGB. I had some print jobs go terribly bad, turns out yellow flowers are out of gamut for my camera, for sRGB and CMYK, If you try to print something that has out of gamut colors, the printer will do something to put them into the gamut and you might not like it. I learned to turn on the gamut warning for Photoshop and bring the colors into the CMYK gamut before I print, even if I am sending in an sRGB file. It didn't bother me so much when I was printing 'cards' with my Epson ET-8550, but once I had orders come back ruined, I figured it all out.

PaulHoule 2y ago

Last summer I looked a lot at "print on demand" services of which I'd call out https://www.contrado.com/print-on-demand https://www.contrado.com/print-on-demand and something I found amusing was that almost all of them will only take files in sRGB format even though they actually support a gamut which covers some colors better than sRGB and other colors worse. My monitor supports Adobe RGB and covers both spaces pretty well. I think, however, that they have more quality problems if people send files that have different color profiles so they just take sRGB. I had some print jobs go terribly bad, turns out yellow flowers are out of gamut for my camera, for sRGB and CMYK, If you try to print something that has out of gamut colors, the printer will do something to put them into the gamut and you might not like it. I learned to turn on the gamut warning for Photoshop and bring the colors into the CMYK gamut before I print, even if I am sending in an sRGB file. It didn't bother me so much when I was printing 'cards' with my Epson ET-8550, but once I had orders come back ruined, I figured it all out.