Robertodst
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Flight distance : 57290 ft
Italy
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Geebax Posted at 12-24 13:12
I looked at your footage, and what you are seeing is an issue caused by the rolling shutter employed in the camera's sensor. It can be reduced by either slowing down the speed of your pan, and/or by using an ND filter on the front of the lens to reduce the light and then changing the camera shutter speed to around 1/50th of a second.
Thank you Geebax.
I can also try some filters and other shutter speeds, as you suggest, in order to increase the shutter opening time, but I ask you to consider the two issues separately:
1) the segmentation of fast movements in the presence of a very short shutter time. This is what happens if you take a video shoot like the blades of a rotating fan.
2) the segmentation of a video during a footage.
They are two different things, the first I would say is normal, and has a clear physical explanation. The second can only be explained by a problem at the SW level (in the best case) or at HW level (in the worst case).
In order to support what I write, I am showing you another video taken overnight and showing the same problem, so I don't think it can be solved by adding a filter, but, as I write before, I'll try this too.
Please watch this.
https://www.youtube.com/watch?v=yEaxyZCQa9w&t=283s
If you don't want to see the whole video, skip to minute 3 for example, or watch only the tracking shots.
Your suggest to do slower tracking shots. Ok, this certainly reduces the annoyance of seeing the video segmentation, because we have the ability to mediate between the images we observe and we perceive less the intermittence of the video, in fact, at the limit, when the image is static you don't notice anything,
but that doesn't mean we're eliminating the defect. It's a bit like saying, when my car goes fast it is too much noisy, so I always go slow. |
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