What/are there any basic gain and offset values for the 294MC Pro. I use long exposures for deep sky imaging. Typically 2, 5 and 10 minute duration through a UV/IR cut filter.
I've been using gain: 122 and offset: 30 for deep sky imaging but having problems with removing the amp glow using dark and bias frames.
I will recommend you using 120 gain.:)
Offset can be adjust accorsding to your histomgram, it should be set to show the left part of the histogram.
Please try to use the same offset for darks,lights and bias.