Ghosting in slow motion IR footage

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ThomsonB

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  • Joined: Wed Dec 23, 2020 8:26 am
  • Real Name: Bruce Thomson

Ghosting in slow motion IR footage

PostWed Dec 23, 2020 8:37 am

Hi, I am not sure if this is a camera issue or some other, but it seems this might be a good place to start.

I am filming at 120fps in IR and when I import the video and play it in Resolve, I see the primary subject in motion plus about 4 or five ghosts of the subject trailing behind. The shutter speed is 1/10000 sec and the system is set on 1080 422 All-I, so it seems unlikely that each video image has anything more than a single image...or am I totally wrong??!!!

Are there any settings in Resolve that might fix this? Many thanks, Bruce
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Uli Plank

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Re: Ghosting in slow motion IR footage

PostWed Dec 23, 2020 11:06 am

Which fps is your timeline? You may have an odd relation between 120 fps and the TL and the Blend mode activated.
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roger.magnusson

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Re: Ghosting in slow motion IR footage

PostWed Dec 23, 2020 11:30 am

The free version used to limit the timeline frame rate to 60fps maximum. I don't know if that's still the case, the v17 comparison page doesn't specify. Of course you can just slow it down using clip properties and avoid frame blending.
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ThomsonB

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Re: Ghosting in slow motion IR footage

PostThu Dec 24, 2020 4:27 am

Hi,

many thanks. I have tried 30 and 60fps on the timeline, but frame blending might be a possibility. I will check it out.

Merry Christmas to all.

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