DJI-ytao
DJI R&D Squad
Flight distance : 1209413 ft
Hong Kong
Offline
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Would u plz provide the original video?or just show the caption so that i can check the shutter.
my guess is about the shutter speed and light AC freq.
AC generate light with a fixed freq. say 60hz.
the light goes dark and dim with a freq of 120hz.
since it is so fast, human eye cannot notice.
if the video shutter is much smaller than 120hz, each frame captures not enough light of a AC freq. the shadow will be seen.
it is common for any kind of video recorder.(modern lights freq is different, this issue may not happen. usually some old AC light)
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