Quote:
Originally Posted by Alchemy
if we assume the camera is sensitive ie 60% + QE then it is capturing the photons , what is happening is the 'PixelWell if i can call it that is deep and holds far more than a dslr pixel well, say 45000 instead of 4500. this means the data can be stretched out..... if you get my drift.
So capturing 1800 photons for a given amount of time in a dslr gives you 40% full so a mid grey and about 1800/4500 x4096 (1638 levels of play)........ wheras 1800 photons in the Q8 gives a really dark, dark grey BUT (1800/45000 x 65000 gives you 2600 levels of play) does that make sense?
clive.
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This is exactly correct. The light buckets (pixels) are just much deeper. The quantum efficiency should be good and the cooling reduces the noise much more than in an uncooled DSLR so a much better S/N ratio.