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Old 18-08-2015, 03:57 PM
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jjjnettie (Jeanette)
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jjjnettie is offline
Join Date: Feb 2005
Location: Gladstone
Posts: 16,730
Seeing how you'll be hanging this extended imaging train off the side of your scope (don't forget to add in the weight of your extender) I'd be going for the lightest possible solution.
I wouldn't worry too much about vignetting or coma as the targets will still be small enough that you can crop the worst out.
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