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Mario_tr
Mario_tr
Inspiring
June 28, 2018
Answered

How to remove horizontal banding caused by LED lighting

  • June 28, 2018
  • 12 replies
  • 140073 views

Hi, does anybody knows how to remove horizontal banding caused by LED lighting when we shooted using silent mode with mirrorless cameras ?

does you know a method using Photoshop to do this? Or a photoshop or lightroom plug-in that works for this problem?

this is an example of the problem:

Picture was taken with a Sony A6300 digital camera.

      Correct answer Trevor.Dennis

      I was not aware of this affect.  Do you know what causes it?  Is some sort of artefact that happens with Mirrorless cameras and LED lighting panels?

      It's not going to be an easy fix.  I tried using curves, but it was tricking getting the layer mask to align with the darker areas.

      The best I could come up with was slow and careful use of the Dodge and Burn tools.  Set the strength really low (10%) and use a fully soft brush set to Midtones, and about the size of the dark bands.  Then slow brush out the shadows.

      I have pasted this in the same size you uploaded it

      12 replies

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      c.pfaffenbichler
      Community Expert
      c.pfaffenbichlerCommunity Expert
      Community Expert
      June 28, 2018

      Do you still have the RAW data?

      Mario_tr
      Mario_trAuthor
      Inspiring
      June 28, 2018

      Yes I have.

      Mario_tr
      Mario_trAuthor
      Inspiring
      June 28, 2018

      Led lighting dimming (on cheap ones) are done simply by pulsing light and not by the variation of intensity (technically it is call duty-cycle). Tank you for the answers.

      Trevor.Dennis
      Community Expert
      Trevor.DennisCommunity ExpertCorrect answer
      Community Expert
      June 28, 2018

      I was not aware of this affect.  Do you know what causes it?  Is some sort of artefact that happens with Mirrorless cameras and LED lighting panels?

      It's not going to be an easy fix.  I tried using curves, but it was tricking getting the layer mask to align with the darker areas.

      The best I could come up with was slow and careful use of the Dodge and Burn tools.  Set the strength really low (10%) and use a fully soft brush set to Midtones, and about the size of the dark bands.  Then slow brush out the shadows.

      I have pasted this in the same size you uploaded it

      D Fosse
      Community Expert
      D FosseCommunity Expert
      Community Expert
      June 28, 2018

      Trevor.Dennis  wrote

      I was not aware of this effect.  Do you know what causes it? 

      This has to be the mains 50Hz frequency interfering with a scanning sensor at a certain shutter speed. It's the same effect as waving your spread fingers under a fluorescent tube.

      I'm considering a Sony alpha, precisely because the clanking shutter of my Nikons is just too much in some delicate situations. It's very useful to know in advance that this is a potential problem.

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