It is certainly low at the Ha end of town.
So what determines the QE of the camera is it the surrounding electronics or the chip. As the QE graph is of the camera and maybe not applicable to the chip. Maybe Nikon deliberately tuned the QE this way for microscopic usage.
I agree about the 810a but that's colour, and its unlikely ZWO or QHY are going to scrape off the Bayer film to make it mono.
Last edited by billdan; 20-03-2017 at 11:07 PM.
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