Case study: a fast Maksutov-Ritchey-Chretien of F/1.3

20141212_1.jpgDesign of a very fast Maksutov-RC type catadioptric telescope, with an internal image plane.

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Published 12.12.2014 by Jani Achrén and he wants to show more here.

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Designing Cassegrain type telescopes with spreadsheet

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Designing a reflective telescope system with paraxial optics is really easy, since there is no refraction involved. Pre-design calculations offer final solutions in most cases. Here I will demonstrate use of spreadsheet for designing a Cassegrain type reflective telescope.

Originally published 22.2.2013 by Jani Achrén. You can know more in here and here‘s the xls compatible spreadsheet.