What context are you talking about? In single mode where it’s just SDR, it’s mapped to take the full range of the display up to whatever is deemed a comfortabl

What context are you talking about? In single mode where it’s just SDR, it’s mapped to take the full range of the display up to whatever is deemed a comfortable cap. In a mixed HDR/SDR mode, the H is range above the S , so it doesn’t make sense to scale it up. I prefer Apple’s terminology of Extended Dynamic Range because it’s clearer that its range above the SDR range. Now you could say that you intend for that SDR to be treated as HDR, but without extra information you don’t know what the scaling should be. Doing a naive linear scale will always look wrong.