Hello Thanks I had a Moravian G4 16000 and now I change it with SBIG STX . The background in picture was 600 ADU filter Ha with Moravian and now in the same conditions is 1030?Why? georges
The offset level is arbitrary. It is an adjustment that is made during production. It must be large enough to ensure that values never go negative. We have adopted a target of 1000 ADUs.