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Reducing camera slomo strobing (flicker)

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Todd Hallam
Reducing camera slomo strobing (flicker)
on Dec 16, 2013 at 12:54:47 pm

Trying to eliminate the rolling flicker/strobing that happens when shooting under these lights. See video here https://vimeo.com/81940755

First is the clip as shot, then repeated but with CC wide time added set to 4 frames forwards and backwards which combines the frames and gets rid of the flicker but leaves quite an echo. Tried to smooth out with motion blur but it gets too blurry. So I want to be able to just copy the luma values of the combined frames but not the image itself. Anyone know of a way to do this?

Todd Hallam
SideshowFX
http://www.sideshowfx.com


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Todd Kopriva
Re: Reducing camera slomo strobing (flicker)
on Dec 18, 2013 at 12:32:58 am

This might help:
http://blogs.adobe.com/aftereffects/2012/07/reducing-flicker-for-stop-motio...

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Todd Kopriva, Adobe Systems Incorporated
After Effects quality engineering
After Effects team blog
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Todd Hallam
Re: Reducing camera slomo strobing (flicker)
on Dec 18, 2013 at 2:35:12 pm

Thanks for the tips Todd. Unfortunately none of those solve the problem. I need to find a way to affect the frame the way CC Wide Time does but just with the luma values being merged, not the image echoing. I don't know how Wide Time is actually doing it and why it gets rid of it but it does work as this is a rolling shutter that rolls through the frame so it's not just one whole frame that is darker or lighter, it's a part of one.

Todd Hallam
SideshowFX
http://www.sideshowfx.com


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