Thread: Prawned...
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  #18  
Old 30-07-2010, 06:09 AM
Alchemy (Clive)
Quietly watching

Alchemy is offline
 
Join Date: Jul 2007
Location: Yarra Junction
Posts: 3,044
Hi Brendan

Nice shots, the Ha gives nice crisp details.

The trailing stars WILL be due at least in part to tube flexure, I had a 12 inch newt on a g11 , and that's where the problem lies. The tube is not strong enough to hold e weight of the dslr , remember we are on
Y talking micron movement here.

The detail you have is enough at 10 mins just get more subs and stretch if required.

Not to put a downer on the scope as it will give superb bang for the buck, I decided to put a strengthener plate arou d the focused , this helped but I was too fussy and gave up on it and sold it. I put a 5 inch apo on the g11 and it won't shift a pixel in hours now.

Another way to fix it would be off axis guiding or like the sbig cameras..... Inbuilt so that tube flexure is not an issue.

Clive
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