Quote:
Originally Posted by Craig_
It is possible to change the offset on ZWO cameras with the ASCOM driver (at least with my 533 it is) and I am fairly sure the same is possible with the native ZWO driver, but I don't use that. The default 'unity gain' settings of 100 gain 70 offset on the 533 deliver a minimum ADU of around 2500(ish) whilst lowering offset to 20 brings the minimum ADU down to around 620. I have not yet established whether this makes any real world difference to imaging.
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Correct. There is an offset setting available in the ASCOM driver as well in Neb4 for the 462MC but not the older 120MM so I guess it depends on the camera. Using the 462MC as an ASCOM camera is not a show stopper because I don't need a fast frame rate for deepsky. It was only an issue for planetary. I've also noticed that ASCOM doesn't seem to return a value to Neb4 when the exposure is finished so if you set an interval of X seconds delay in between takes it doesn't read it. I have to experiment a little more but for now I would assume pausing guiding or dithering with PHD doesn't work either.