An interesting idea floating on the DVXuser forums – The Canon EOS 7D 3K movie experiment – we were alerted to this by cinegear.net. We've seen a couple of GH2 videos done in burst mode that were related to being 4k video (remember they're talking about horizontal resolution – 1080 HD video is really almost 2k because it is 1920 x 1080 – the 1980 being the width). In this situation, the author (Jan Mocnak) used the 8fps from the Canon EOS 7D and then used “for some scenes Twixtor for some Foundry Kronos (reference)” to stretch the video out to 24fps.
The first post by dc98
know that native 3K movie on HDSLR is hardware mission impossible, BUT …..what happened if you shoot photos at sequence mode (canon 7D can shoot 8 FPS) …at JPEG format at 3k resolution…you get “8fps movie sequence”….hey 8fps ?? eggrrr its realy slow fps…now its time for experiment with inbetween frame calculations…and what happened ???…you can see it in my tests movie seq. in 3K resolution No color grading, no other postproduction… I know this method is not perfect at all and has many limitation, but for some “static” or not fast scenes like nature documents is maybe usable
I wrote to Jan and asked:
I do have a clarifying question tho please Jan… you state that it is a 3k video – but the highest resolution on the Canon EOS 7D for still is 5184 x 3456 – which would be 5.1k (since they measure the horizontal resolution for video right?). Am I right? Or did you do something in post to take it to 3k wide?
You Are Right, but at postproduction I downsized it real 3K. But If you shoot at maximal camera resolution you can get 5K image sequence and you can use same workflow to achieve 5K inbetween frames from 8fps 5K jpeg images
Downscaled video from 3K source made with JPEG 8fps sequence and calculated inbetween frames back to 24 fps
So, what do you think? Worth the experiment? Does it add anything to the party?
(cover photo credit: snap from the video)