Sony A7s - 60p to 24p choppyness

drewU2 wrote on 9/12/2014, 6:26 PM

Hey all, 8 year Vegas user here and noticing something new - when I slow down my Sony A7s footage shot in 60p down to 24p (slowed down to 40%), the output looks a bit choppy. I've tried going to disable resampling from smart resampling but that doesn't seem to help. Ideas?

Comments

musicvid10 wrote on 9/12/2014, 8:36 PM

Of course it's choppy; the framerate ratio is not a multiple of 2, but 2.5, so motion stutter will happen..
Twixtor ($) is your best solution.
Oh, why do you want 24p output?

john_dennis wrote on 9/12/2014, 9:07 PM

If you're willing to take that exact speed reduction you could try exporting a still image sequence from a 60p project and open the result in a 24p project. That should be as smooth as 24p can be.

DataMeister wrote on 9/13/2014, 11:46 AM

Assuming your project is set to 24p, can you just adjust the playback rate in the clip's properties to 0.400?

NickHope wrote on 9/14/2014, 12:36 AM

drew2, could you be confusing 23.976p with true 24p in your calculations or project properties?

Musicvid, I think he just wants to take 60p footage and slow it down to 24p. i.e. by stretching the clip out to 2.5 times the length. No interpolation (e.g. Twixtor) required.

musicvid10 wrote on 9/14/2014, 6:53 AM

You know, I didn't read the first post carefully enough.
Mea culpa.

If his shutter speed was fast and he is seeing strobing at 24p, a tiny bit of motion blur may be the ticket.