Flickering Video in Backlight
1686 10 2022-10-15
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djiuser_JPybuT6vArbZ
lvl.2
Flight distance : 147123 ft
Canada
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When shooting in backlit situations, I'm seeing flickering in the recorded video.  



Has anyone else seen this?


2022-10-15
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Montfrooij
Captain
Flight distance : 2560453 ft
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Netherlands
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Looks like prop shadows indeed.
Try moving the gimbal up or down and see if it will still be present.
2022-10-15
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djiuser_JPybuT6vArbZ
lvl.2
Flight distance : 147123 ft
Canada
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Good idea. I'll go back and re-shoot that location with differing gimbal angles.

Looking at the alignment of the gimbal and the prop disks, I don't see how the props could ever shadow the lens directly.  The light source would have to be nearly on the horizon.

I'm surprised that I haven't seen this on other Mini 3 footage.  Backlight is popular.

2022-10-15
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Drone.Hunter
Second Officer
Flight distance : 4537612 ft
Kazakhstan
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To check, change the video recording settings: resolution, h.264/h.265, fps, etc.
2022-10-15
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djiuser_JPybuT6vArbZ
lvl.2
Flight distance : 147123 ft
Canada
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Drone.Hunter Posted at 10-15 18:33
To check, change the video recording settings: resolution, h.264/h.265, fps, etc.

Thanks, Drone.Hunter
Was shooting D-Cinelike h.265 30 fps. Not sure if Auto  mode or not.
2022-10-15
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Drone.Hunter
Second Officer
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Kazakhstan
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djiuser_JPybuT6vArbZ Размещено в 10-15 19:11
Спасибо, Drone.Hunter Снимал
D-Cinelike h.265 30 кадров в секунду. Не уверен, есть автоматический режим или нет.

Try h.264, I also see something similar on h.265. Or use ND filters with a shutter speed of 1/60
2022-10-15
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djiuser_JPybuT6vArbZ
lvl.2
Flight distance : 147123 ft
Canada
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OK.  I'll try h.264. Thanks!  I never considered that might be the issue.
No ND for my Mini 3 yet.
2022-10-16
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djiuser_JPybuT6vArbZ
lvl.2
Flight distance : 147123 ft
Canada
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djiuser_JPybuT6vArbZ Posted at 10-15 19:11
Thanks, Drone.Hunter
Was shooting D-Cinelike h.265 30 fps. Not sure if Auto  mode or not.

I was unable to replicate the original conditions due to sun angle and time of day.  I need to return once more to that location.  

I was able to test in some severe backlit conditions and I can see that the Mini 3 lens is quite susceptible to internal reflections.  These appear so far to be codec agnostic.  

Might be time to investigate a small "french flag"  (sun shade) for the lens.  It could mount with velcro directly to the aircraft body and would weigh virtually zero.
2022-10-16
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pablodziekan
lvl.4
Flight distance : 951394 ft
Poland
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djiuser_JPybuT6vArbZ Posted at 10-16 08:16
OK.  I'll try h.264. Thanks!  I never considered that might be the issue.
No ND for my Mini 3 yet.

Here https://www.freewellgear.com/143-dji-mini-3-pro-nd-filters you have ND filters for the Mini 3 Pro.
2022-10-16
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pablodziekan
lvl.4
Flight distance : 951394 ft
Poland
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djiuser_JPybuT6vArbZ Posted at 10-16 08:16
OK.  I'll try h.264. Thanks!  I never considered that might be the issue.
No ND for my Mini 3 yet.

Here you have ND filters for the Mini 3 Pro.
2022-10-17
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djiuser_JPybuT6vArbZ
lvl.2
Flight distance : 147123 ft
Canada
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pablodziekan Posted at 10-17 00:02
Here you have ND filters for the Mini 3 Pro.

Thanks.  They're on the list.

So far, I've been unable to reproduce the flickering.  The sun has been largely obscured by smoke from wildfires south of my location.
2022-10-17
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