Thread: Barlow 2x or not?
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  #3  
Old 30-03-2007, 10:25 AM
Solanum
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Join Date: Nov 2006
Location: Coromandel Valley
Posts: 359
As a beginner I'd be interested to know why this is. I thought a diagonal just reflected the light 90 deg, why does it have an effect on magnification?
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