Quote:
Originally Posted by cornelious2
That being said there is processing between the sensor and the buffer and since the sensor cannot actually hold data it has to stay open the whole time while that processing happens. on highend cameras there is another dedicated processor that does this. on low end the main processor handles this, but either way there is video processing happening.
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Not true, sensors can indeed hold data; charge is shifted out of the light-sensing pixels in various ways after exposure into transport and/or storage circuitry on the sensor. CMOS sensors have per-pixel readout capabilities, and are able to transport accumulated charge from the light-sensitive transistor to a buffer transistor to make electronic shutters possible (which is what makes our cell phone cameras possible).
Read about electronic shutters here:
http://www.caspegroup.com/How%20an%2...S%20camera.pdf
Now here's the thing ... the electronic shutter is likely a rolling-shutter type which can be prone to artifacting with moving objects based on the maximum readout speed of the sensor. This is, however, not the source of the blur we see. First, the blur we see is not the kind of artifacting caused by electronic rolling shutters -- those exhibit skewing and image distortions, not long-exposure type blur. Second, we are able in bright light to eliminate blur, which indicates that the maximum shutter speed of the camera is not the issue ... theoretically we should be able to use that same shutter speed in low light. It's just a question of what shutter speed the camera picks to use in various lighting -- this is a function of the camera software, the drivers in question -- no matter what they do -- would not affect this.