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Activity Forums Apple Final Cut Pro X Artifacts using flow dissolve

  • Artifacts using flow dissolve

    Posted by Thomas Kaufman on September 18, 2023 at 1:34 pm

    I have a client who edits on FCP X. They need to make flow dissolves to avoid cutting within a shot and morph two shots together. The issue is artifcacts. I’m shooting with a Sony camera and the footage must be transcoded to import to FCP. I wonder if shooting with a Canon C300 would help eliminate these artifacts during a flow dissolve? We’ve had them with every Sony camera we’ve used, but with the Canon there would be no transcoding.

    Any thoughts?


    Craig Seeman replied 10 months ago 3 Members · 2 Replies
  • 2 Replies
  • Doug Metz

    September 18, 2023 at 5:06 pm

    The Flow transition doesn’t really care what you’re shooting with. What really matters is the difference between the clips being ‘flowed’ together – if one side of the transition has a hand in the shot, and the other side doesn’t, you’ll get some weird looks. If the person speaking moves their head a lot, or if the background changes, you’ll get some oddities as well.

    Another thing to keep in mind is that FCP needs to calculate/analyze the differences, so it’s important for that to happen prior to playback. I do this by parking the playhead over each Flow transition as I put them in, and wait for the ‘Analyzing’ bit to finish.

    Try to keep them short. It works best with a talking head that keeps relatively still. The more action you try to bridge, the more potential for artifacts.

  • Craig Seeman

    September 18, 2023 at 8:42 pm

    Hmm, there’s no reason to transcode from most recent Sony cameras into FCPX. I use Sony Z90 and FX3 and everything imports straight in. Perhaps the transcodes are the issue.

    It’s not clear what you mean by “artifacts” because there are different causes. Wait for the Flow transition to render. Personally, I prefer to use MotionVFX mMorphCut. It’s hard to be more specific without details and examples. Without specifics, you’re only going to get general suggestions that may not be applicable.

    When describing an issue write so that someone can match equipment and follow steps.

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