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my first test with a canon 7d as a video cam - 1280x720 pix 25 fps - orginal movie is 60 fps - lens used: canon 50mm 1:1,4 and sigma 70-200mm 2,8. - there is a filckering in the movie because the ligth in the hall had 50hps an the raw movie was filed with 60fps.

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  • Curtis Redden plus 2 years ago
    The flicker is actually from filming at 60ntsc then converting to an odd number like 25pal. Your up-converting ntsc to pal.

    You should only use PAL 50p to convert to 25p or NTSC 60p to convert to 30p. . . . odd-odd | even-even
  • Ludovic Jolivet plus 2 years ago
    I believe the flickering comes from the shutter speed setting.
    If you shoot in a country where they use 50 Hertz then use 1/100 or 1/50; if in a country that uses 60 Hertz then use 1/60... To convert 60p to 25p shouldn't cause flickering, but it might affect the smoothness of the action but I haven't noticed it much when I test it.
  • Curtis Redden plus 2 years ago
    right on, cool. It could be rolling shutter problem too.
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  • Friedhelm Fischer plus 2 years ago
    thanks
  • Ludovic Jolivet plus 2 years ago
    See above... and try it for yourself:)
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  • Jeroen de Cloe 2 years ago
    Nice footage! Would 60p to 24p cause any flickering? 24 is even, so works right?
  • Ludovic Jolivet plus 2 years ago
    No... unless you're filming in a country that uses 50 Hertz then set your camera speed to 1/100 or other increments 50.
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  • wild86boar 3 months ago
    Nice!!!
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00:02:18
  • 1280x720, 148.76MB
  • Uploaded Sat December 26, 2009
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