Gopro Time Lapse Testing

[SalvageSV]

So, there was some discussion in my photo thread about time lapse, so I thought I'd do a little test.

I took the same time lapse footage that I shot the other day and run it through GoPro Studio with different frame rates.

I was confused when I initially did this becasue changing the frame rate in Studio wasn't reflected in the media length stated in the encoding area. This test is to give people an idea of how much content they get with different frame rates with time lapse.

So, in my test I had 490 frames taken at 2 sec intervals. That's basically 16.3 minutes of photography.

I imported these into GoPro studio and rendered them at 24 and 48 fps, and I did a third at 48 fps and 1080, just to see how it scaled the footage.

You can see below that the media length is the same for all clips.

However, when imported into Premiere, they have different lengths.

Based on some quick math, it looks like the time displayed in GoPro Studio defaults to 30 fps and doesn't reflect the actual export frame rate. And, it's using a direct 1:1 translation of the frames.

490 / 24 = 20.4 sec
490 / 30 = 16.3 sec
490 / 48 = 10.2 sec
490 / 60 = 8.2 sec

I hope this demonstration will help others figure out how long they need to shoot!

 

[SwissMotard]

I always output at 30fps and then scale it to the length I need in my video editor.

 

[MiGlyRides]

Nice one!