Quote:
Originally Posted by peter_4059
If the shutter is open for 1 min and the download time is 8 seconds then the percent of time capturing is 88%. If the shutter is open for 10 mins and the download time is still 8 seconds then the percent of time capturing increases to 99%. I'd have thought the probability of collecting the elusive photon must be higher if the shutter is open a larger percentage of the time?
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Correct, but as the nature of the photon arrival is random, on average you’re only disadvantaged 1/8 of the time...
But also see shutterless software use above. More CMOS chips are rolling shutter than global shutter, so unless the photon strikes the pixel at the instant it is being read, then there is no loss taking place.