Sankos, thanks for sharing your in-depth experiences with different colour spaces.
Perhaps you could post the same image which has been processed in a sRGB workflow or even AdobeRGB vs one which has been processed in ProPhoto. My question is if the final delivery is to an ordinary print shot (who use sRGB, almost all of them) whether there is a visible difference based on the colour space in which the photographer does the processing.
I wasn’t entirely happy with our methodology when I reread the article now and shot some additional test photos in both sRGB and AdobeRGB on my Z6, both in RAW and jpeg, processing both formats with some strong saturation to multiply the differences. Early results show richer reds in sRGB version but better skies and better greens with AdobeRGB originated images. There’s also much less banding in the skies.
On the other hand, the bricks on the left (sRGB) are a much more satisfying dark orange than on the right (AdobeRGB) where they are yellow. Same applies to the red roofs.
Strangely enough the theoretical colour space differences support the practice in this case.
AdobeRGB should have more blues and more greens available, while sRGB reds and oranges make up a larger part of the available gamut.
In any case, it would be great to see someone post some example images where wide gamut processing has improved an image which in the end is deliverable in sRGB (whether to the web or to a normal printer).