Quote:
Originally Posted by gregbradley
UV/IR bloat is one possibility, what filters are you using?
More likely some tilt causing elongations. As to those dents in the sides of the stars that's a bit harder to fathom.
Best to eliminate one possibility at a time. Check for tilt by rotating the camera and see if it changes the way the stars look.
Greg.
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i agree might be tilt the focuser was extended far, is there a way to fix the tilt?
with the bloating, this was a lum sub at a dark sky site, they are the stock standard ones that come from the asi supplier