I am obsessed with slow-motion video with Twixtor, it makes your slow motion video smooth. What it does is it fills the gap between your frames so there will be no rough movement on your slow motion. It can enhance your video that was taken in 50fps or 60fps to 1000fps or more. Its a dear software but cool. Wonder if there’s an open source version of it 😀
Here are some interesting examples:
Tiwxtor Text Video (Canon 7D) – 1000fps
7D 2000 fps (Original)
https://www.youtube.com/watch?v=FLMoJ7jl4sw&feature=youtube_gdata_player