ASIDeepStack bias/flats

thomsdak

i use ASI294MC PRO. Everything I read about this camera, as well as reading about ASILiveStack both in this forum and Cloudy Nights, seems to say that I should not use bias shots if I use flats and use darks with the same temperature as lights. However, when I attempt to add the flats and darks to ASILiveStack without first adding bias I get an error message saying that I must add bias before I add flats. What is the correct procedure for using ASILiveStack with my ASI294MC PRO?

Corsair

The way around this would be to shoot a "Bias" that's actually as Dark Flat/Flat Dark.

It's what I do with the ASIAIR with my ASI294MC Pro camera (cooled to 0°C, gain 121).

That way I have (NOTE: I do this in Live Mode in the ASIAIR since I do Live Stacking for EAA):
Flat frame done with a 5 second exposure, Stack of 20 (with my light source this puts the AVG AD?U at around 27000 - 28000).
Dark Flat/Flat Dark - done using the "Bias" frame tool - with a 5 second exposure, stack of 20 (I also done with a stack of 50).
Dark - exposure to match Lights (so one at 5, 10, 30 and 60 seconds), Stack of 20.

So for my Light, its either 5, 10, 30 or 60 second exposure (usually 30 seconds for me with my setup). I usually let it run for 10 minutes on any particular target.

thomsdak

I follow your approach. However, it will not stack the lights. It stacks the flats and darks and then quits. I get the same results when I load only darks or flats but not both with the lights. It will stack lights by themselves but the quality is bad. In addition, it will not transfer the results to the file folder. I am at a loss to explain this.