Rolling bands when shooting computer projector screen

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    • #72011169
      AvatarAlexeyS
      Participant

      Hi:

      I have to film a scene with a background image created by computer projector on muslin screen. I use GH4 camera and the footage shows bright colored bands rolling top-down on the screen (of course I do not see them by naked eye). I understand why does this happen (de-synchronization of refreshment time between projector and camera) and tried different video modes on GH4 (60p, 60i. 30i, 30i, 24i, 24p). Nothing helps. What else I could try?
      Related question: for the same situation, these “rolling bands” a present on Sony FX1000 camcorder footage, but they are much less visible. Any ideas how to get rid of them?

    • #72011178
      AvatarJackWolcott
      Participant

      Try adjusting shutter speed.

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