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Schmidt telescope
(redirected from Schmidt cameras)

   Also found in: Encyclopedia 0.01 sec.
Schmidt telescope, camera
n
(Astronomy) a catadioptric telescope designed to produce a very sharp image of a large area of sky in one photographic exposure. It incorporates a thin specially shaped glass plate at the centre of curvature of a short-focus spherical primary mirror so that the resulting image, which is focused on a photographic plate, is free from spherical aberration, coma, and astigmatism
[named after B. V. Schmidt (1879-1935), Estonian-born German inventor]
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.Schmidt telescope - reflecting telescope that has plate that corrects for aberration so a wide area of sky can be photographed
reflecting telescope, reflector - optical telescope consisting of a large concave mirror that produces an image that is magnified by the eyepiece; "Isaac Newton invented the reflecting telescope in 1668"


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For the astronomical professional, this can mean 14-inch square glass plate negatives, Schmidt cameras weighing 5 tons, and 4-hour guided exposures, but an amateur can buy or make gas-hypersensitized Kodak Tech Pan and use almost any clock-driven telescope with a camera and lens riding it "piggyback" to take good pictures.
 
 
 
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