Background showing through blue-screen.

I am not seeking perfection but I would like to get rid of the background appearing faintly through the blue screen (not green screen).


The first 20 seconds of the clip are fine(for what I need!) but suddenly after that the black gilet becomes slightly transparent.


I don't think the lighting changed (I was indoors) so what is going on?



Mac mini, macOS 15.6

Posted on Sep 13, 2025 3:05 AM

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Posted on Sep 14, 2025 4:31 PM

How close was your subject to the blue screen (and green is better for digital video, btw)?

The subject moving around will cause reflected light on him to change, so there's you light movement/changes.

You may have to keyframe your keyer over time.

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Background showing through blue-screen.

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