How does the mechanical shutter work in a mirrorless camera (e.g. EOS R5)
Theoretically, somebody correct me if I'm wrong, but once camera makers develop and implement sensors that read out all at once instead of line by line (called a "global" shutter), there would be no more need for a mechanical shutter at all.
The fundamental problem is being able to read all that data simultaneously then push it out simultaneously, and that would involve millions of wires instead of a couple of dozen.
I could imagine a sensor chip with a buffer behind the pixels, when the "shutter closes" every sensor pixel is instantly copied to the buffer pixel, then it's read out of the buffer line by line. That would still involve millions of wires (pixels to buffer) but those would be in the chip, which is doable.
But such would require two layers of fabrication with the silicon (?) wafer, and I don't know if they can do that yet.
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