It doesn't matter so much what the objective standard is for measuring DR, it matters more that all the cameras use the same litmus test.
In other words, how they compare to each other, not to a theoretical standard. So if for instance Cinema5D was to use their methodology on all the cameras out there for say the last 10 years, we would know pretty much where things are at when a new camera is tested.
In other words, how they compare to each other, not to a theoretical standard. So if for instance Cinema5D was to use their methodology on all the cameras out there for say the last 10 years, we would know pretty much where things are at when a new camera is tested.