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What are these lines in my video?

ebrandon

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I think these might be shadows of the propellers on the camera? They went away when I changed direction away from the sun.

Do we need some kind of lens hood for the camera?

15 second long 4k video. 56 MB.

Prop Shadow.mp4
 
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I think these might be shadows of the propellers on the camera? They went away when I changed direction away from the sun.

Do we need some kind of lens hood for the camera?

15 second long 4k video. 56 MB.

Prop Shadow.mp4


Yes, you are correct, that is prop shadow. I believe it is caused by the shutter speed being set too high. You shouldn’t need a lens hood but you might want to pick up some ND filters for when flying in sunny conditions. They will cause less light to be allowed through the lens, forcing the camera to a slow shutter speed which should elimanate the prop shadows.
 
Thanks. I'll try that when ND filters for the air become available.
 
Indeed, prop shadow captured and frozen in each frame, because of too high shutter speed. Lens hood helps somewhat. Better is to use ND filters to get the shutter speed at max 2x the chosen frame rate. This will blur the shadows (and other things making for a smooth cinematic video) so you don't see them.
 
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Just wanted to let people know that I got the Polar Pro Cinema ND filters and they did indeed fix the shadow strobe lines in my videos.
Thanks for steering me to the right solution!
 
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Thanks all for identifying a similar problem I was having...
Trouble is I know keep hearing the good old Cat Stevens song...

Oh, I'm bein' followed by a propshadow, prop shadow, propshadow---
Leapin and hoppin' on a propshadow, prop shadow, propshadow---
And if I ever lose my hands, lose my plough, lose my land,
Oh if I ever lose my hands, Oh if I won't have to work no more.…

Yes I'm that old.
 
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