Quote:It is consistent, but very strange.
I frame-stepped through it, and it has a 2:3 cadence. This is bizzare, in that no matter what the original rate of the high-speed camera, it should capture progressively and in digital, which could then just be shown at 60fps, giving the ultra-slow motion effect. A 2:3 cadence only exists because of having to fit 24fps into a 30fps medium while maintaining audio sync. Even an interlaced high-speed camera could just be de-interlaced with no frame duplication, as there is no need to maintain any "reference" rate.
Regardless, the brightness "strobing" that we are seeing happens in a 36 frame cycle from dark to dark.