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this post was submitted on 01 Dec 2023
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Did you look at the example in the article? It's clearly not milliseconds. It's several whole seconds.
You don't need a few whole seconds to put an arm down.
Edit: I should rephrase. I don't think computational photography algorithms would risk compositing photos that are whole seconds apart. In well lit environments, one photo only needs 1/100 seconds or less to expose properly. Using photos that are temporally too far apart risk objects moving too much in the frame, and thus fail to composite.
There's three different arm positions in a single picture. That doesn't happen in the blink of an eye.
The camera is taking many frames over a relatively long time to do this.
This is nothing at all like rolling shutter, and it's very obvious from looking at the example in the article.
It takes you several seconds to move your arm? I hope you don’t do manual work.
Also did you use the iOS camera app before? You can see how long it takes for the iPhone to take multiple shots for the always-on hdr feature, and it isn’t several seconds.