[TheAstroGuy (Shane Ross)]

Hi Guys,

Here's a wide shot on the Horsey with an 80mm scope.

I stopped working on it when i realised the Coma on the edges was so bad, but this coma is weird its almost a perfect cross, normally coma would flare in one direction so if someone could please tell me what this is and how to fix it i'd be super happy. Is it a field flattener position from ccd focal plane issue perhaps?.

Here's the image : www.theastroguy.com.au/hh.jpg
Here's the strange coma magnified : www.theastroguy.com.au/d.jpg

Thanks

Shane