Thread: What is meant by "stopping down a telescope"?
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Old 18-05-2006, 08:13 PM
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spacezebra (Petra)
Lost in Namibia

spacezebra is offline 		 
Join Date: Aug 2005
Location: Albury NSW
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What is meant by "stopping down a telescope"?
Hi there

I had this explained to me but it would be great if someone could post pictures (im a visual person) and a written explanation.

Cheers Petra
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