The other day, we were contacted by Patrick Donohoe from CrumplePop about this method of making HDSLR video incredibly slow – like we've posted about recently with Twixtor – and we thought you'd appreciate the info. We've been given permission to reprint this here on planet5D.
Patrick sent us this:
“I originally saw Oton BaÄar's fantastic BMX video (the 2000s fps) posted here and I thought you might be interested in something we had been working on.
We we're pretty astonished by Oton BaÄar was able to accomplish using twixtor. Being Final Cut Pro (FCP) users, we we're trying to figure out a way to use the twixtor effect in motion (making it free if you have final cut) and we found a way to do.”
We were inspired by Oton BaÄarâ€™s incredible bmx videos on Vimeo to experiment with retiming 60fps video shot on the Canon 60d. Specifically, we were interested in whether an obscure feature of Apple Motion called â€œOptical Flowâ€ could achieve results that were comparable with Twixtor.
After a lot of experimentation, we came up with a workflow that yields pretty solid results. As is the case with Twixtor, Apple Motion handles some shots beautifully while other shots get turned to ripply mush. Which is better, Motion Optical Flow or Twixtor? It seems to be more or less a draw, with Apple Motion having the distinct advantage that it comes bundled with Apple Final Cut Studio and is therefore free if you already use FCS. Either way, youâ€™ll need to pick and
choose the best bits with the smoothest motion and the least mush.
For our test, we used a Canon 60d with a Tokina 11-16mm f2.8, 59.94fps 1280Ã—720, shutter at 1/1600. Itâ€™s important to mount the camera on a tripod, turn off AWB, and pick a scene with a relatively simple background (likeâ€¦snow).
The basic workflow is to 1) Shoot at 59.94fps 2) Bring the footage into Motion and retime to 15%, 3) Export from Motion and conform it to 23.98fps using Cinema Tools. Then bring into FCP and edit.
Here is a tutorial that shows the nuts and bolts:
Note that I say we shot on a 7d, but it was actually a 60d. Sorry. And here is the final result:
Thatâ€™s Jed at CrumplePop on the bike, and also playing the music thatâ€™s in the video. Jed engineers most of our effects, so if you have ever had technical problems with one of our products, you should especially enjoy the sight of him hitting the ground.
The bike is a Surly 1Ã—1 with Nokian tires.
Normally, we're trying not to duplicate info from the other top HDSLR blogs – we notice Philip Bloom posted this yesterday – but we already had the post in process and, well, I just don't like throwing work away LOL
(Photo credit: snap from the video)