RU.08 said:
When they started the project everything was scanned at 1080p. Later, they changed their camera and later scans were done at 4k and resized to 1080p. By every account they've given, all work being done (clean-up, stabilisation, etc) is being done at 1080p and not 4k. By their descriptions, their 4k scans don't yield meaningful detail above 1080p anyway.
That makes sense. I did read this myself earlier, but I was still unsure if they were doing clean up in 4k or 1080p. You've answered my question. Thanks for the information.