Quote:
Originally Posted by Gama
Try looking thru the scope with the camera removed. You may catch the streaking light thats causing the issue. Look for shiny surfaces, like the inner of the focus tube, proper baffling, etc.
Theo
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Well, I ended up having a look through the scope with the camera removed. With the QHY8L, the Moonlite focuser is extended approximately 90% of its total travel. I did this during the day and there was definitely a streaking ring of reflection off the inside of the focuser. When I retracted the focuser a bit, this shiny section was covered by the draw tube. I really think this could be the source of the problem. So in the meantime, I have added a 2 inch extension tube to the imaging train and now just need to give it a go during an imaging run. Fingers crossed this is the root cause.
I will report back when I have a 'clear' night. Very much appreciate everybodys input.
Cheers,
Daniel