Mike Warren
lvl.2
Flight distance : 421532 ft
Australia
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PandaCheese Posted at 2018-8-19 14:36
Appreciate the replies but my question wasn't about exposure but the pan-induced judder or jittery, shifting images. It's most visible when panning across regularly shaped polygons like buildings, with edges perpendicular to the horizon. In my footage you can see it best starting around the 35s mark, but please you need to watch it in fully quality to see it.
I see the jitter through most of the video, although it's most prominent at around 14 seconds and 35 seconds.
My guess is it's caused by the excessive compression of the Mavic.
The jitter seems to happen about every 8 frames, although I haven't measured it.
This can be mitigated to some extent by making sure the shutter speed is quite slow, ideally 1/60th of a second or slower, which means using a neutral density filter. This will cause a slight motion blur which lowers the amount data that the compression algorithm has to deal with.
Also, if you're after getting the best quality, slow the movements down quite a bit compared to your example video. Apart from making the shot aesthetically better, this will feed less data to the compression algorithm so it doesn't have to work so hard. |
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