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| Secondary Mirror
Forum List | Follow Ups | Post Message | Back to Thread Topics Posted by John Manetas/">John Manetas on March 9, 1999 16:52:01 UTC |
Can somebody tell me what is the secondary mirror? I know the primary, the diagonal and the eyepiece, as the plan for a Dobsonian scope describes, I can't find anything about secondary. Ps. Thanks Steve your comment was very helpful. |
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