I just returned from a trip to Costa Rica for 2 weeks and put together a dive video. It was my first real test with the LX10/Nauticam housing. I was fairly impressed with the exception of the stabilization in 4k, I was in pretty strong current/surge so that may have played a part. I'm also extremely picky when it comes to stable shots. 1080 worked well when I slowed it down 50%.
Everything was shot in ambient light from 30-90 feet (no filter), I had a light but didn't use it. Color corrected in Davinci Resolve (free version)
Mostly 1080 footage, some 4k and 120fps as well.