Strange water formation in long exposure

Started Jul 22, 2013 | Questions thread
rjjr Forum Pro • Posts: 14,755
Makes me wonder

From my old electronic engineering days if there is some kind of timing/refresh signal on the sensor, converters or other circuitry that doesn't show up in short exposures but may show up in longer exposures under certain conditions or some sort of failure of a filter to prevent those signals from showing up in the output?

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