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2. Orion Telescopes & Binoculars - Wikipedia

   en.wikipedia.org/wiki/Orion_Telescopes_&_Binoculars

   Orion ED120 apo refractor on Orion's Sirius EQ-G "GoTo" and GPS equipped German equatorial mount with portable 12 volt power supply. Orion sold a range of telescopes that they characterize as "beginner", "intermediate" or "advanced", including Newtonians, Maksutovs, Schmidt-Cassegrains, Ritchey-Chrétiens and refractors with or without (sold as optical tube assemblies or "OTA") a variety of ...

3. Meade Instruments - Wikipedia

   en.wikipedia.org/wiki/Meade_Instruments

   The Meade Instruments (also shortened to Meade) was an American multinational company headquartered in Watsonville, California, that manufactures, imports, and distributes telescopes, binoculars, spotting scopes, microscopes, CCD cameras, and telescope accessories for the consumer market. [2]

4. Celestron - Wikipedia

   en.wikipedia.org/wiki/Celestron

   Celestron was the first large scale commercial manufacturer of the Schmidt-Cassegrain telescope, introducing its "C8" 8" diameter 2032 mm focal length, ƒ10 telescope in 1970. [7] The primary innovation Celestron/Tom Johnson devised was a method to produce Schmidt corrector plates using a vacuum to pull the glass blanks into a pre-shaped curve ...

5. Bresser - Wikipedia

   en.wikipedia.org/wiki/Bresser

   The Bresser GmbH product portfolio caters to both amateur and professional users, under several specialized brands. These include the Bresser Brand itself (telescopes, microscopes, binoculars, weather stations, and photo studio equipment), Explore Scientific (telescopes and astronomy accessories), National Geographic (optical and outdoor products like binoculars, [7] telescopes and microscopes ...

6. Tasco - Wikipedia

   en.wikipedia.org/wiki/Tasco

   Tasco mainly imports telescopes for amateur astronomers but has expanded into other optical products, such as spotting scopes, microscopes, binoculars, telescopic sights, and other rifle accessories. Tasco sells via retail stores , catalogs , and online retailers .

7. List of largest optical telescopes in the British Isles

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

   Largest optical telescope in UK, but never used due to flawed optics James Gregory Telescope [3] 37 in (94.0 cm) Cassegrain reflector: St Andrews, Fife, Scotland: University of St Andrews: 1962: Largest operational optical telescope in the UK Cambridge 36-Inch telescope [4] 36 in (91.4 cm) Reflector: Cambridge, Cambridgeshire, England ...

8. Meade ETX telescope - Wikipedia

   en.wikipedia.org/wiki/Meade_ETX_telescope

   The ETX started out as a 90 mm (3-1/2") Maksutov Cassegrain telescope (first produced in 1996) and took advantage of high volume mass production and simplified optical and parts construction to open a new market for a cheap alternative to the very expensive Questar 3-1/2 Maksutov Cassegrain [1] [2] The ETX "line" has been expanded to 105 mm, and 125 mm Maksutov Cassegrains and achromatic ...

9. Royal Observatory, Edinburgh - Wikipedia

   en.wikipedia.org/wiki/Royal_Observatory,_Edinburgh

   When in 1980 the Starlink Project was formed to support astronomical image processing in the UK, the ROE became one of the six original nodes of the Starlink network. Over the years 1973–1979 the ROE built the 3.8-metre UK Infrared Telescope (UKIRT) on Mauna Kea in Hawaii. This is an early example of the use of thin mirrors in large telescopes.