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Building My First Telescope

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Posted by Ray W. on May 26, 2000 16:54:48 UTC

I`m planning to build my first scope (8inch Dob) but a little hestitant about trying to produce my own optics.

Has anyone had experience purchasing primaries and/or secondaries through Orion Telescopes? Orion guarantees a 1/8-wave surface accuracy or better on their primary mirrors and a 1/10-wave surface accuracy for the secondary mirrors.

Also, is there a formula to use when figuring the size of the secondary?

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