Skip to main content
S
southwestform
Inspiring
April 20, 2015
Question

Working with 120fps video?

  • April 20, 2015
  • 3 replies
  • 38836 views

I have footage shot at 1080P 120fps from a GoPro. My understanding is that the reason to shoot this many frames is to slow the footage down to make it smoother.

1. Is the best way to do this with the speed/duration option?

2. If I decide to not slow the footage down, is there anything in PP that I should do to make the footage play back nicely?

Thanks.

    This topic has been closed for replies.

    3 replies

    B
    Community Expert
    Byron CortezCommunity Expert
    Community Expert
    March 10, 2018

    Hi Southwestform, here you have the best way to do your footage play back nicely and at real motion:

    In Project panel right click in video, choose Modify / Interpret Footage...

    In "Assume this frame rate:" box, put 120 fps like the screenshot, and that's all.

    Regards!

    Byron.
      BartonGarrett256
      BartonGarrett256
      Inspiring
      April 20, 2015

      ‌In general GoPro footage is a challenge to work with native in Pr unless you have a very fast system.  I'm upgrading to an 8 core I7, SSD, 64gb RAM, Raid 0, dual video card system, in part because renders on long 1440 x 1080 GoPro clips with multiple effects (warp stabilizer on top of the list) were taking forever. Basic stuff is just slow, but stacking effects is brutal. If all you need to do is assemble and trim you may be okay.

      I haven't played with 120 FPS footage, but expect it can't be any easier.  If you don't have a fast system you might want to consider transcoding into Cineform or DNxHD before you process.  Poke around the forums using search and you can find a few threads with good suggestions from experts.  Also follow the links to the Tweakers page, which is a little stale on current reccomedations, but the underlying information is excellent.

      Pr now has a nice GP lens correction effect, carefully hidden under Presets.  It's not perfect, but it can make the footage much less fish eyeish.

      Steven L. Gotz
      Steven L. Gotz
      Inspiring
      April 20, 2015

      1. No. Absolutely not. See below.

      2. Not that I know of. If you play it at 30fps you are only using 1/4 of all of the frames, but that should be OK for most footage.

      If you want to play it in slow motion, interpret the footage as 24fps and then create your sequence from the interpreted footage. If you are going to want to play it as both slow motion and regular, then make a copy of the clip in the bin before interpreting it.

      artofzootography.com
        shooternz
        shooternz
        Legend
        April 20, 2015

        2. Not that I know of. If you play it at 30fps you are only using 1/4 of all of the frames, but that should be OK for most footage.

        You sure about that Steven.  It should be playing all the frames. ie 30 fps playback  per second from  120fps real time = slo mo

        4x slower.

        This conversation seems like de ja vu  BTW .

          S
          southwestformAuthor
          Inspiring
          April 20, 2015

          Nice specs compared to our sucky NZ speeds.

          pm sent - linked to a file.


          For clarification:

          1. I usually setup my sequence settings by dragging the clip into the Timeline and let it set the sequence settings that way. If I do that, it will establish the sequence at 120fps. Can I just go in after it has already established the other settings and just change the fps from 120fps to 30fps? Or is there another way I should be doing this?

          2. How can I take my 120fps footage and play some of it in slow motion and the rest at 30fps? By making a copy of the clip, how do I get it into the timeline where one of the clips is 120fps and one is 30fps?

          Thanks!

          Terms & ConditionsAccessibility statement
          Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices