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RE: How Do I Find The Correct Mirror Distances

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Posted by Kip Crawford on October 23, 2000 04:44:18 UTC

Well you made one boo boo...should never install the diagonal or cut the hole until you are absolutely sure where it goes. One dimension we need to answer your question: What is the distance from the face of the primary to the back of the tube? This will help determine the length from the face to the center of the secondary. Then calculate your focuser racked in heigth + 1". Then add the point of focus to the center of your secondary. Many variables to consider.

We live and learn I guess. But not a total loss. In the future never cut the focuser hole until you are sure of the dimensions. It should be one of the last things you do. Oh well. It can be fixed. Good Luck!! Send us those dimensions I mentioned.

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