Going parabolic: The difference between a Ronchi, Foucault, and a Caustic test
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Product Description
Amateur astronomers like to build their own telescopes, sometimes to the point of even grinding the objective mirrors. This is doable, but involves
Amateur telescope making - Wikipedia
how to parabolize a low focal ratio mirror ( F2-F4 ) - first part
Mike Lockwood's Foucault Testing Hall of Shame
The Ronchi Test -- What it Measures and how Sensitive is It
A Better Method of Measuring Optical Performance
foucault Guy's Math & Astro Blog
Che cos'è il test ottico “della Caustica”. - The Grattavetro
The Ronchi Test -- What it Measures and how Sensitive is It
The Ronchi Test -- What it Measures and how Sensitive is It
