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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 ...
The Meade Instruments (also shortened to Meade) was an American multinational company headquartered in Watsonville, California, that manufactured, imported and distributed telescopes, binoculars, spotting scopes, microscopes, CCD cameras, and telescope accessories for the consumer market. [2]
Typical accessories for telescopic sights are: Lens hood is a tubular extension mounted on the objective and/or ocular ends to shade light and reduce/eliminate glare . The lens hood mounted on the eyepiece , often called an eyecup , is often made from corrugated silicone rubber for resting against the user's eye socket, and can also help avoid ...
Explore Scientific is a company founded by former Meade Instruments Vice President of Brand Community Scott W. Roberts in 2008. Headquartered in Springdale, Arkansas, the company designs and manufactures telescopes, spotting scopes, binoculars, microscopes and other scientific devices. [1]
NGC 925 is a barred spiral galaxy located about 30 [4] million light-years away in the constellation Triangulum. German-British astronomer William Herschel discovered this galaxy on 13 September 1784. [6] The morphological classification of this galaxy is SB(s)d, [3] indicating that it has a bar structure and loosely wound spiral arms with no ...
From 2009-2012 their telescopes ranged from USD 3000 for a 12.5 inch telescope, up to USD 12–15,000 for a 25-inch telescope. [8] [9] The company manufactured a limited number of 30-inch and 36-inch telescopes. [10] In 2009, it assisted OMI in the design of the OMI Evolution-30. [11]
Orion Telescopes & Binoculars was an American retail company that sold telescopes, binoculars and accessories online and in-store for astronomy and birdwatching. It was founded in 1975 and had corporate offices in Watsonville, California. [1] A large proportion of its products were manufactured by the Chinese company Synta for the Orion brand ...
The telescope tubes of compact binoculars can often be folded closely to each other to radically reduce the binocular's volume when not in use, for easy carriage and storage. Many tourist attractions have installed pedestal-mounted, coin-operated binocular tower viewers to allow visitors to obtain a closer view of the attraction.
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