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Old 03-09-2018, 04:38 PM
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Robh (Rob)
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Join Date: Feb 2009
Location: Blue Mountains, Australia
Posts: 1,333
You're not getting enough magnification with the 10mm.
1200mm / 10mm = 120x.

I would suggest a 6mm EP.
1200mm / 6mm = 200x.
A 6mm Plossl is $49 from Bintel.
If the seeing is good enough, you should see some surface detail.

Regards, Rob
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