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Thanks for the feedback all...
The image was at prime (F9) on the VC200L is full frame no cropping and just binned 4x4 and jpeged to get the size down after auto DD'd to show the glow in the raw as it were. I can get a better result with more careful processing but wanted to know if I was doing something wrong as I had not seem amp glow jump up at me like that when imaging other objects (brighter ones) so I went back and did 16*5 mins but saw the same effect...
I took 16 darks...1/4 moon does not help...
I'll have to find that flexure issue though I have an idea that it is probably droop on the main imaging train (astronomers droop?), my T-ring is quite sloppy but mostly I suspect the the flip mirror assembly which is a push fit. I will try again with the FR in place and the camera close coupled to the focuser - no flip mirror.
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