Mark Nash

6 hours ago, MarsG76 said:

Hi, thanks for the feedback... the gain I used was 62 at the High Control Gain (HCG) mode with an offset of 25 and Bin 1x1.
I cooled the camera to -3C, about as cool as I can get to be consistent during summer nights which are around the 27C mark.

 

Thanks for that, very helpful. I think I'll have a go at the same region for my next attempt. I'll definitely up the gain and exposure quite a bit compared to my previous go.

That's excellent! What gain did you use? I did my first Ha session on M42 last Friday and the image is so weak that DSS treated most of it as noise and the stacked frame lost all the detail! I did 240s with a gain of 100 with an Altair 183CPROTEC. I'm going to have to increase exposure and gain I suspect.