I am unsure what’s going on here, it’s happened twice for me now on two different sessions.
I’ve got a ASI533MC and fits coming in. The fits viewer in Kstars is showing an accurate image (attached). I then process them through Siril to be stacked and I get a white screen for blue channel and my overall RGB is blue.
I don’t understand why this may happen or what I’m doing wrong in Siril, as I assume what I’m seeing in Fits viewer in Kstars shows a fine image?
Thanks for looking into that for me. I went through the OSC processing scripts before and the stacked file was blue too. I might do a clean install to see if I’ve got something stuck!
If you’re using Ekos/INDI or the native camera driver in general (not ASCOM) there are some strange default values for “WB_R” and “WB_B” in the SDK from ZWO. They default to 52 and 95 which is utter nonsense. Stretch a bias frame and you’ll clearly see the bayer pattern, which doesn’t make sense at all. Set “WB_R” and “WB_B” to 50 and everything is fine again.