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T-adapter just arrived. Tips for tonight?
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10-03-2008, 06:19 PM
Astro78
Tripping in Space
Join Date: Oct 2007
Location: Sydney
Posts: 500
Good point, and have just ordered a chinese cable.
How do you calculate f-stop when not using a lens or eyepiece, oh let me guess, f5 = my mirror. Right?
A lower film ASA would be good but shouldn't i go the other way, ie. 800+
Astro78
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