How important is sensor pixel density really?

[Garbz]

Actually that describes KmH quite well

In Analogue to Digital conversion the top value is defined by a reference, and the dynamic range is then defined by how many bits are used for quantisation. So more is better the more bits you have the more detail and information you can pull out of your shadows. ... till a point. This assumes an analogue source of arbitrarily large dynamic range. Digital sensors are not that. The lowest value in most sensors is defined by the noise floor of the everything leading up to quantisation, not the quantisation process itself (which can in itself generate noise).

So you could have a 16bit ADC, heck throw in a 24bit ADC what have you got to lose. The problem is those extra 2 or 10 bits will be measuring nothing but noise, and be utterly useless. Worse still they will present an extra load to the processing circuitry wasting power, and more importantly speed. It's non-trivial reading out and then processing and storing 10million 24bit values several times a second.

 

[prodigy2k7]

Actually that describes KmH quite well

In Analogue to Digital conversion the top value is defined by a reference, and the dynamic range is then defined by how many bits are used for quantisation. So more is better the more bits you have the more detail and information you can pull out of your shadows. ... till a point. This assumes an analogue source of arbitrarily large dynamic range. Digital sensors are not that. The lowest value in most sensors is defined by the noise floor of the everything leading up to quantisation, not the quantisation process itself (which can in itself generate noise).

So you could have a 16bit ADC, heck throw in a 24bit ADC what have you got to lose. The problem is those extra 2 or 10 bits will be measuring nothing but noise, and be utterly useless. Worse still they will present an extra load to the processing circuitry wasting power, and more importantly speed. It's non-trivial reading out and then processing and storing 10million 24bit values several times a second.

:scratch:
What the he'll did you just say? :lmao:

 

[Garbz]

I said adding more bits produces more detail only if more detail is available

 

[prodigy2k7]

I said adding more bits produces more detail only if more detail is available

WHY DIDNT YOU SAY THAT THE FIRST TIME :lmao::lmao::lmao::lmao::lmao:!!!
Ahaha JK, thanks for both the technical and layman's terms.