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Newtonian focus |
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Newtonian focus: see telescope telescope, traditionally, a system of lenses, mirrors, or both, used to gather light from a distant object and form an image of it. Traditional optical telescopes, which are the subject of this article, also are used to magnify objects on earth and in astronomy; ..... Click the link for more information. . Newtonian focus [′nü′tō·nē·ən ′fō·kəs] (optics) The position in a Newtonian telescope at which the image is formed, located at the side of the tube near its open end. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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