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JonesVid
Community Expert
JonesVidCommunity Expert
Community Expert
July 3, 2023
Question

How best to minimise USA 60Hz lighting flicker on 50fps footage

  • July 3, 2023
  • 4 replies
  • 346 views

So after our travels in USA last year I am editing the footage and have come across some situations where there was indoor lighting that has caused some issues. Not in every case but there is valuable footage I want to include in the edit.

I was filming in 50fps on my Lumix S5 as my final edit is on 50fps

I managed to reduce the flicker during filming by adjusting shutter speed slightly from 1/100th sec but it has not gone away completely.

The de-flicker in Premiere is for only Interlaced footage as far as I know but here I have Progressive footage - 4K UHD 50fps.

If you switch the camera to say 59.94 fps during filming it stops but then you have slightly jerking video (even on slow pans)  on the 50fps timeline and have to apply optical flow to reduce it.

Does a plug exist to help with this lighting flicker removal?.

What is the normal technique when mixing 60Hz lighting in 50 fps timelines ??

I saw a technique on You Tube that duplicates the target clip on two tracks above and you offset the top track 2 frames/next track 1 frame and set opacity 33% and 67% respectively.

Doesn't always work and this technique is a long way if you have around several clips to work on.

Any help in tips to improve the footage in post edit would be welcomed.

I'm using latest Premiere Pro 23.5.

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4 replies

JonesVid
Community Expert
JonesVidCommunity ExpertAuthor
Community Expert
July 3, 2023

Thanks everyone for the input on this

Unfortunately my budget pot has run fairly dry as I'm only doing this as a hobby and not commerically - so I do need the low cost option

In fact I have tried the method again of stacking the 3 identical clips and offsetting by 1 and 2 frames then adjusting opacity.

I found I had not nudged the frames forward the correct amount before - but get it right and it works very well. Good enough for me.

By nesting you can sharpen the end result with Sharpen effect as the technique does slightly dull the crispness of the image.

Works best on mostly fairly static shots - panned shots are more of a challenge.

I'll look into the plug ins when budget permits.

 

Ann Bens
Community Expert
Ann BensCommunity Expert
Community Expert
July 3, 2023

https://revisionfx.com/products/deflicker/

Rag and Bone
Community Expert
Rag and BoneCommunity Expert
Community Expert
July 3, 2023

There are plugins for this, but they're a little pricey. Depends how much the footage is worth to you. I haven't used these myself—perhaps someone with more experience can weigh in on this.

Neat Video is well thought of. Demo available.

Flicker Free (not free, though they offer a demo)

Boris FX Continuum Unit: Image Restoration, again far from free, but you can try a demo.

R
Community Expert
Richard M KnightCommunity Expert
Community Expert
July 3, 2023

I use this for theatre led flicker, it works very well:

 

https://digitalanarchy.com/Flicker/main.html

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