The title won’t make sense if I don’t explain as I barely understand the basics. I have recently learned about the rolling shutter effect from this video:
I have seen several posts here on reddit illustrating what happens when the camera shutter is the same as for example the blades of a helicopter. I get that the blades appear to not move but why I don’t get is why the blades aren’t frozen and also bent as seen in the rolling shutter effect.
Example of helicopter blades for example:
https://youtu.be/yr3ngmRuGUc
In: Technology
That video title “camera shutter speed and frame rate match helicopter`s rotor” is not entirely correct. The rotor’s rotational speed is almost an exact multiple of the frame rate, so saying that those match is pretty much true. However, there’s no “matching” of shutter speed. The shutter speed is simply extremely fast in that video, which is why the blades are individually visible. If that video used a more normal shutter speed, those blades would just be a blurry disk.
Syncing of shutter speeds is more relevant to flickering and artificial lighting in videos.
The camera used in that helicopter video has a global shutter, which is why you don’t see any warping of the rotor blades.
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