Thread: On the right track for new eyepieces?
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Old 10-08-2009, 04:35 PM
Dennis79 (Keith)
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Dennis79 is offline 		 
Join Date: Jul 2009
Location: Toowoomba
Posts: 37
Cheers Rob, you are correct, it is a 1200mm focal length, it has an F ratio of 4.7.

I had forgotten about practical magnification, I'm still learning how to fit everything together.
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