timbytheriver came up with a method for hybrid HDR-REC709 processing with Dolby Vision, and it made a dramatic improvement to this example video I shot a few years ago on my 5d3 (3072*1308 14 bit)
I previously had serious difficulties with the more extreme dynamic range shots, particularly the closeup of the oscilloscope. It formerly required trickery such as spot exposure reduction on the LED to get the right saturation without losing all the contrast in the rest of the shot. Now it was straightforward and looks great with no trickery!
This workflow also revealed details that were previously absent, such as the sky through the (filthy) windows in dimly lit interior scenes. Incredible colour!
On another note, I was so pleased with the new grade that I re-rendered the blender animations, and in the process I found that the "eevee" realtime raytracer is now very close to production ready, so I used it, and it was a real game changer. What a treat to see lighting adjustments on the fly...