DJI-Osmo-User-1
Second Officer
United Kingdom
Offline
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The 180deg rule has nothing to do with flicker but only to give a more natural look where motion is slightly blurred, a very high shutter speed will give you a stuttering effect which is not pleasing to watch. In order to combat flicker from lamps then you need to manually set shutter speed to double the Hz of the incoming mains. In UK this is 50Hz and America it’s 60Hz, if you double the shutter speed eg. 100 or 200 etc in the UK, 120,240 etc in the US then you will minimise flicker.
A brief physics lesson, the mains supplied voltage is alternating sine wave, meaning it switches on and off 50 times per second (in the UK) hence when a camera is set to say 50fps the camera sees the voltage go on and off hence flicker.
There is also a “Magic” workaround if the footage is shot wrong. In your editing suite of choice duplicate the video and move the top track exactly 1 frame ahead, the set the top track opacity to 50% and the flicker will be gone.
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