I finally had a bit of clear skies so I was able to get some use out of the camera. I pretty much got things working other than issues with SharpCap crashing - but I'll deal with those separately. What I did encounter is some image issue and I don't know the source of the problem or what's might be causing it. I don't recall seeing any discussion of this in the early introduction threads so any help is appreciated.
The image was taken with a WO Star71 and the ASI1600MC-C attached directly to the scope. No filters as in the imaging train. Ambient temps were in the low 30's F. Is this a gain issue or some other cause? I know it tends to disappear with shorter exposures lower gain but it's still somewhat visible. The fact that it shows up regardless of where the scope was pointed would tend to rule out any stray light issues.
Image details via SharpCap are:
Debayer Preview=On
Pan=0
Tilt=0
Output Format=PNG files (*.png)
Binning=1
Capture Area=4656x3520
Colour Space=RAW8
Hardware Binning=Off
High Speed Mode=Off
Turbo USB=80
Flip=None
Frame Rate Limit=Maximum
Gain=300
Exposure=30
Timestamp Frames=Off
White Bal (B)=95
White Bal (R)=52
Brightness=1
Gamma=50
Fan=On
Temperature=-39.1
Cooler Power=100
Target Temperature=-40
Cooler=On
Auto Exp Max Gain=300
Auto Exp Max Exp=30
Auto Exp Max Brightness=100
Mono Bin=Off
Fan On=On
Subtract Dark=None
Display Brightness=1
Display Contrast=1
Display Gamma=1
