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Activity Forums Panasonic Cameras Under and over cranking (variable frame rates) on the AG-HVX-200

  • Under and over cranking (variable frame rates) on the AG-HVX-200

    Posted by Danni Karanja on January 23, 2012 at 5:34 pm

    I have a simple question (well simple for most of you on this website) regarding under cranking. As my film school education plainly taught me- if you shoot in a frame rate slower than 24fps and run the footage through a projector at 24fps, movement will appear to be faster. Visa versa with over cranking.

    I shoot with a AG-HVX200 which has a variable frame rate of 12fps up to 60fps (if i’m not mistaken). The problem is when I shoot at (12fps lets say) and I import into final cut and run it in a time line set at 24 (23.98fps) I don’t get that fast motion effect. Well truth be told I’m not sure- I did a three way test with a control at 24fps, one variable at 12 and one at 34. The one at 34fps appears to my eye as the clip with the fastest motion- but it should be slower right?

    Is there some theory I’m missing here? Please help.

    Danni Karanja replied 14 years, 3 months ago 2 Members · 2 Replies
  • 2 Replies
  • Chris Tompkins

    January 23, 2012 at 8:05 pm

    Save a copy of the clip (At the finder level(mac))
    Open in Cinema Tools and conform the clip to the new frame rate.
    Now import into edit.

    Chris Tompkins
    Video Atlanta LLC

  • Danni Karanja

    January 24, 2012 at 6:00 pm

    Ok Thanks Chris,

    I can see how Cinema tools can change the frame rate- problem persists because I’ve noticed Final cut is importing my footage shot at “12fps” (which I put in quotes because I’m not utterly convinced video cameras shoot at frame rates- more like they mimic them) as 59.94. I’m playing with my capture presets to see if this changes anything when I import using (file>import>Panasonic P2). So right now when I set a timebase of 24fps my footage is being over cranked, and thus I’m getting a slow motion effect.

    Any additional thoughts?

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