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Dall-Kirkham Primary Mirror Testing

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Posted by Andre Burger/">Andre Burger on May 14, 1999 12:55:18 UTC

I am in the process of polishing a 200mm / f2.47 primary mirror for my Dall-Kirkham telescope. Can anyone give me advise on how to test & figure this mirror properly. I have built a Foucault tester and derived formulae to correct for off-axis abberation - ie. the distance between source & image formation of the light source (foucault tester). Any comments and/or advise will be appreciated.

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