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Watching your own hand movements through your phone camera is a good demonstration of this. Set 60 Hz video mode, and the latency is probably less than 30 ms - but still extremely obvious.
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it's quite a lot more than 30ms, as phone cameras do some real heavy-weight image processing to compensate for their tiny size, I'm talking neural networks and such. the throughput might be 60fps when it's all conveyor-ed but the latency sure isn't
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You're right. Looks like it's more around 90 ms, at least for my iPhone 12 Mini. Test setup was taking a photo of the iPhone 12 Mini watching an incrementing counter on a 50 Hz CRT.
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