best method for 720 24pn slow motion?

[Nascency Chris]

Alright, here is what I have thus far...

I have footage captured in 720 24pn with a 1/1000 shutter. I am trying to get a really clean looking super slow motion (think 30% speed vs 100%). The image is clean, in focus (for the most part, I was fighting alot of motion at varying distances) and the slow motion right now looks good until I try and slow it down past 60%, then it has some stutter to it...

Anyone have any ideas on how I can get past the stutter or should I just be happy with what I have now?

[David Jimerson]

You're probably not going to do all that well. It's harder to slow down 24p footage than it is a higher frame rate because there's more of a difference in the position of moving objects from frame to frame as there would be in higher frame rates. So, the more you slow it down, the longer each frame is on screen with the object in one position, and then it jumps to the next frame/position.

There are programs like Twixtor, but eventually, math is math. A 30% slowdown may never yield smooth results.

[Nascency Chris]

You're probably not going to do all that well. It's harder to slow down 24p footage than it is a higher frame rate because there's more of a difference in the position of moving objects from frame to frame as there would be in higher frame rates. So, the more you slow it down, the longer each frame is on screen with the object in one position, and then it jumps to the next frame/position.

There are programs like Twixtor, but eventually, math is math. A 30% slowdown may never yield smooth results.

Thats fine...this is why we have overcranking right? I can live with most of what I have at the 60% rate.

And the 1/1000 shutter speed just cleans up the motion blur right?

Oh, and thank you for the description of exactly what was happening, it gives me a way better idea of how to shoot the same subject in the future!


edit:

I had one shot from that segment of footage that was overcranked (actually used the crispy scene file to get it), so I tried that with the speed set at 30% and it looks great with no stutter...