![Cassegrain Telescope scheme. The equivalent focal length: f = f 1 ×p ́/p. | Download Scientific Diagram Cassegrain Telescope scheme. The equivalent focal length: f = f 1 ×p ́/p. | Download Scientific Diagram](https://www.researchgate.net/profile/Mohammed-Traiche/publication/252487384/figure/fig2/AS:298046157017089@1448071149273/Cassegrain-Telescope-scheme-The-equivalent-focal-length-f-f-1-p-p.png)
Cassegrain Telescope scheme. The equivalent focal length: f = f 1 ×p ́/p. | Download Scientific Diagram
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