Thanks for this research. I formatted your information above in this graphic. I find it very interesting that 1080p/24fps is higher video rate than 1080p/30fps.
I found your information while trying to determine if filming at 1080p/60fps was the cause of the noise I was seeing in
, and if switching to 30fps would help low-light conditions. I'm not sure that this answers the question directly, but I did find a video with side-by-side (above-water) Hero3 footage comparing 1080p/60fps with 1080p/24fps under low light. The results were that the 24fps certainly was better in low light, but the rolling shutter was far more prevalent in the 24fps. Next dive I take I'll try to cycle through various modes and compare the deep water/low-light behavior of the various frame rates.