Raymond Hey Raymond! Great to have you on the forum YEs 100% agree Arri colors are far from accurate… however as long as the camera has a sturdy codec and no gamut clipping etc and isnt color blind, it can al be converted in whatever you like.
Arri log c is very much inspired by cineon log scans (arri wetgate scanner). What I like about kodak is that alreadyback in the 80’s they were able to create very accurate reproduction with film stocks, I have a lot of documentation about that, but a lot of film stocks were rejected in their test phases by dops. Analogue capturing is ofc a lot more limited, especially when a digital intermediate wasnt possible, but with digital capturing cameras are simply data boxes. capturing data.. and as long this data is rich and not polluted it can be interpreted in many ways.
Arri followed the same somewhat tradition as Kodak, doing lots of blind tests with cinematographers, and find a color matrix that has a base that’s close to what people averagely want from it. If your a good colorist you’d probably never use a lut and are able to transform your data in whatever matrix you like it to be. However this requires study, and most graders are used to Alexa footage, so it helps tremendously if we can offer such a Log c starting point with Kinefinity cameras , thats why Gafpa Gear will come out with a non destructive log conversion.
On a philosphic side note.. colors and contrast are perceived completely different from a 8 stop rec 709 display compared to real life hdr, also cinema to me is about transforming. One one part the film history is engrained in our common taste in colors, but I also think and do believe that the empirical approach of how they made and improved film stocks, is also closer to what we want from colors, than a more scientific approach. our eyes tend to like a substractive color science more than the digital additive science.