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Re: Focal Length
Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To Posted by Sam Orawski/">Sam Orawski on December 5, 1999 11:42:20 UTC |
Pick up a copy of Sam Brown's book All About Telescopes.It will show you how to check focal length pictorially. It also explains everything else you'll probably be wondering about when grinding, polishing and figuring your mirror. |
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