Quote:
Originally Posted by Camelopardalis
From measurements with my ASI1600 and plugging the numbers in as Suavi did, I get...
Gain = 75 => 16.4 ADU
Gain = 139 => 25.6 ADU
Methinks at a dark site I'll be using gain=75 and suck up the longer exposures  |
Does it mean that at unity gain one is left with 12-5= 7 bits (or thereabouts) available for real information?