>>4039894>That is a one dimensional measurement, for a device that produces 2D imagesWhat you think a camera is bro?
These sensor sizes are named after their dimensions. Full frame is called 35mm. What you think that represents? Dimensions. It's not called 864. If you walked into a camera store and said, hey yo, what 864s you got in stock? theyre going to think you're schzio or some shit.