8 bit just objectively isn't enough for hdr. 8 bits is few enough that you can pretty easily see banding on a simple color gradient in sdr. Dithering helps a lo

8 bit just objectively isn't enough for hdr. 8 bits is few enough that you can pretty easily see banding on a simple color gradient in sdr. Dithering helps a lot, but once you get to HDR 10 bits is pretty much the minimum.