Category Archives: Secondary mirror

Build a Cassegrain secondary mirror (J. Texereau)

ITALIAN TRANSLATION OF CHAPTER 8 DEL LIBRO “LA CONSTRUCTION DU TELESCOPE D’AMATEUR” di Jean Texereau La difficoltà principale della costruzione di un telescopio in una combinazione Cassegrain o sua variante, is due to the secondary mirror that is convex, and therefore cannot be controlled with Foucault's Method without the use of expensive tools as auxiliary optical components, poiché […]

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