If i put my camera on a tripod, tighten the aperature and set it to expose for a few hours (with a fancy “move with the earth’s rotation” robo-gimbal), it will register stars (sources of light) that my eyes will never get.
the camera is a full sensor with a 50mm focal length, aka “what a human eye sees”. the only variable is exposure time.
CCD vs eyeball, and the timing of it all is the heart and meat of my question. What is the exposure time of the eye, but in biological terms?
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Amateur’s speculations: I would also take the image processor / brain into account. Seemingly we get the illusion of continuous motion starting at a couple dozen frames per second, meaning we get at least an update every 50ms or less. Our brain, however, has some kind of optic memory and puts new images into the context of the last few seconds. So I’d say, the equivalent exposure time would be in the range of tens of milliseconds to a few “filtered” seconds, although I can’t say if this filtering would help to accumulate light over time.
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