Originally Posted by Dominic Chan
What input was connected to the projector during autocal? There was a report that a 4K input can lead to autocal errors, although that was on an earlier model.
Try playing an 1080p SDR movie and run autocal in log only mode, and see if it makes any difference.
That's what we have below. The first column is my 1080p config logged with 1080p SDR playing, the second column is my HDR config logged with 1080p SDR playing and the third column is my HDR config logged with 4k HDR content playing.
A few notes and thoughts:
- I still can't get that green on the SDR config dialed in. It's not bad, but it should be perfect. This isn't the biggest concern.
- Also not my biggest concern, but it looks like I still have gamma droop in the SDR config ever after autocal. I thought it would take care of that.
- I have no idea why the color temps vary so widely between measurement runs. I know not to expect perfection at the lower levels since I'm using the i1Pro, but I think there should be some consistency above 25% or so.
- I can confirm that whenever I'm in HDR mode, the Lv's measured for all stimulus above 50% gray are basically the same. They measure the same and when I look at the pattern, it doesn't change for different levels. The gamma graph is accurate based on what I'm seeing.
I'm not sure what to do from here. I could factory reset, reflash the original config from Autocal and try again. Besides that, I'm at a loss.
One thing that isn't clear - what gamma graph should I be looking for on HDR? Should it be a straight 2.2 line? And should I measure in Normal mode instead of bt.2084?