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Bright Spot in Video when Sun is behind camera

Discussion in 'Pro/Adv Discussion' started by BrAinZ, Sep 7, 2016.

  1. BrAinZ

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    Hi Guys,

    Is there anything that can be done to eliminate the bright spot that appears in the video when the Sun is directly behind the camera/drone? I'm assuming it's not actually a fault in the equipment as others seem to have the problem?

    You can clearly see what I mean in one of my videos here:
    St Catherine's Oratory - Chale - Isle of Wight

    I don't really understand why this happens, unless the Sun is actually going "through" the back of the camera housing?

    Anyone got a definitive answer?
     
    rene van der meer likes this.
  2. Mark The Droner

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    It's exactly where the shadow of the AC would be. If you were lower, you'd see the shadow. So I assume it's an overlap of the edges of the shadow.

    Nope - don't know how to get rid of it...
     
  3. Meta4

    Meta4 Moderator
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    It's an optical phenomenon called Heiligenschein. Heiligenschein - Wikipedia, the free encyclopedia
    It's hard to beat physics but you could try avoiding the situations where it is an issue. ie sun behind the Phantom shining onto the ground below.
     
    WetDog and matti like this.
  4. NRJ

    NRJ

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  5. Meta4

    Meta4 Moderator
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  6. rene van der meer

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    Nice video BrAinZ
    It is an optical effect caused by diffraction and refection. It depends on the atmospheric conditions and height.
    Probably the light is polarized, so a ND filter might help.
     
  7. Flipsonic

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    I have seen this in some of my vids and I was using ND16. I agree with others, this is optical due to the angle of the camera and where the sun is. I haven't tried a lens hood yet but will purchase one and test if it helps.
     
  8. NRJ

    NRJ

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    Yes it is real but so is a shadow. If we apply light to a shadow it will disappear. We use filters to lessen the effects of light. So, just because something is real, doesn't mean we can't lessen it with the use of filters. The question is how much filter to remove the unwanted light and still have a good picture/video.
     
  9. WetDog

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    Don't try to make it go away, use it creatively. I love getting a similar phenomenon 'The Glory" (referenced in msinger's link) with clouds. Spent entire batteries trying to get it in the right place.
     
    NRJ likes this.
  10. Meta4

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    Not sure what kind of filter will only affect the bright spot.
    Any filter that will reduce the brightness of the bright spot will also darken the rest of the image so there will still be spot that's lighter than the beckground.
     
  11. NRJ

    NRJ

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    That is true, however if a filter doesn't work, you could narrow it down in post processing. It all depends on if you find it a bother rather than a natural effect.
     
  12. Sinisalo

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    You could fix the video in after effects


    Sent from my iPhone using PhantomPilots
     
  13. GunnyPapa

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    Yeah thats the sun