Video Stacking

ParamountObservatory

Hi Guys,
Been testing video mode in the asiair, latest release, as at 11/08/2026, ready for the solar eclipse, and to test my focusing was good I decided to try to record and stack an .avi file of the Sun. when I get the result, the image is only partial and opens in strange way, see attached.

I am using the ASIAir plus with ASI482mc at 1080p

Ive used this before whe there where sunspots and the stacking worked fine, but now, is not working as expected. Is this a bug or something else?

johnpd

What telescope were you using?
Were you getting the full image of the Sun while you were doing the video?
What were you using to stack the video, the stacking option on the ASIAIR or software outside the ASIAIR?
Which ASIAir firmware and app versions where you using?

ParamountObservatory

I was using Skywatcher mak 127 with 0.5 reducer.
98% of the Sun
ASIAIR stacking in the app
ASIAir v3

johnpd

Did you run the .AVI video through any video software such as Windows Media Player to see what was captured?
If the video looks good, did you try stacking the video with any of the following:
-a. ZWO ASIVideoStack in ASIStudio package
-b. AutoStakkert
-c. AstroSurface

JohnD