Well, I have my new Casio EX-F1, and I just *love* it, especially the high speed video (which makes slow motion playback possible).

I'm still experimenting with how to work it best. One thing I learned is if you are going to do slow motion, you need strong, steady light. In any case, I took the following rebounding video two days ago, May 7th, at 300 frames per second.

Obviously, many things could be improved here: it would be nice to lose the vignette, but I needed the wide-angle; the light is still intermittent; the focus could be a little better; and somebody get me a gorgeous and enthusiastic model so I'm not always the focus here. ;-)

But still, I think the kind of "time microscopy" made possible here will enable me to further understand and breakdown the mechanics and energetics of rebounding. For example, I think this video helps make somewhat clearer how the arms and shoulders come into play on the downward trajectory on a medium-high bounce like this one.

Do let me know if you have any questions or comments. I'm still hoping to get a much simplified rebounding manual out this year.

-- Jordan

Well, it's trick working with slow motion, but i find it fascinating, both from the technical point of view and in terms of what it shows me about what happens to the human body (in this case, my body) as I rebound.

This particular shot is at 300 frames per second, so played back at normal speeds everything appears to be going 1/10th as slowly as normal.