Another concise analysis Richardo
So two key things I saw there were
1) Dark shot noise is NOT removed by dark subtraction
Only cooling can reduce dark shot noise for a given sensor
and
2) Lower read noise in a camera is certainly desirable but you need good cooling available to exploit the improvement.
The example you included of managing cosmetic defects with cooling was pretty telling too
Great explanation mate
So in the end is it basically the colder the better really..?
To answer your question Cliveus, I use -30C year round so I can be lazy with the same set of darks but given Richards explanation I should probably exploit the low read noise of my ProLine better and go lower temps in the winter months
Rich, I understand dark libraries should be re-shot periodically, how often does one need to redo dark libraries to keep exploiting low read noise and cooling?
Mike