Looking for a 1-2 Mp USB3 mono camera that has a stable black level.
I have 2 cameras (Thorlabs) that work fine (otherwise).
I am summing the pixels to get a measure of the incoming beam intensity.
Over the space of 20 hours or so the sums can vary as much as 30%, but a power meter in the same beam varies by 1%.
All auto-gain type controls are turned off.
Can anyone suggest a camera that doesn't drift?