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  2. List of largest optical refracting telescopes - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_optical...

    Refracting telescopes use a lens to focus light. The Swedish 1-m Solar Telescope , with a lens diameter of 43 inches, is technically the largest, with 39 inches clear for the aperture.The second largest refracting telescope in the world is the Yerkes Observatory 40 inch (102 cm) refractor, used for astronomical and scientific observation for ...

  3. Category:Refracting telescopes - Wikipedia

    en.wikipedia.org/wiki/Category:Refracting_telescopes

    Articles related to refracting telescopes, a type of optical telescopes that use a lens as their objective to form an image (also referred to a dioptric telescope). The refracting telescope design was originally used in spyglasses and astronomical telescopes but is also used for long-focus camera lenses .

  4. Newall Telescope - Wikipedia

    en.wikipedia.org/wiki/Newall_Telescope

    The Newall Telescope is a 62.5 centimetres (24.6 in) refractor in the Penteli Observatory in Penteli, Greece. It was built in 1869 by Thomas Cooke for Robert Stirling Newall and when completed it was the largest telescope in the world.

  5. Bamberg-Refraktor - Wikipedia

    en.wikipedia.org/wiki/Bamberg-Refraktor

    The Bamberg-Refraktor is a large telescope. The refracting telescope has an aperture of 320 millimetres, a focal length of five metres and is located in the Wilhelm Foerster Observatory in the Berlin district of Schöneberg. The name "Bamberg" goes back to the builder of the telescope, Carl Bamberg (* 12. Juli 1847 in Kranichfeld; † 4.

  6. Refracting telescope - Wikipedia

    en.wikipedia.org/wiki/Refracting_telescope

    A refracting telescope (also called a refractor) is a type of optical telescope that uses a lens as its objective to form an image (also referred to a dioptric telescope). The refracting telescope design was originally used in spyglasses and astronomical telescopes but is also used for long-focus camera lenses .

  7. Copyscope - Wikipedia

    en.wikipedia.org/wiki/Copyscope

    A copyscope is type of refracting telescope that can be made by hand rather than bought in which the objective lens comes from an old photocopy machine, hence the origin of the name. [1] The lenses usually come from defective or old photocopiers, allowing for the objective to be obtained for free or at a low cost.

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