anastigmatn.
Photogr.
An anastigmatic lens or system of lenses.
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society > leisure > the arts > visual arts > photography > camera > parts and accessories of camera > [noun] > lens > types of
portrait lens1852
short-focus lens1862
periscope1865
rectilinear1867
pantoscope1868
wide-angle1868
long lens1876
apochromatic1887
anastigmat1890
concentric lens1890
euryscope1890
landscape lens1890
rectigraph1890
symmetrical1890
concentric1893
telelens1893
telephoto1894
monocle1897
stigmat1901
stigmatic1902
Long Tom1910
zoom lens1932
Panavision1955
teleconverter1959
macro lens1961
zoom1969
macro1971
1890 Brit. Jrnl. Photogr. 19 Sept. 604/2 Doublet Anastigmat, No. 102, by Carl Zeiss Jena.
1894 Amer. Ann. Photogr. 100 The Anastigmat..is the most rapid lens I have tried.
1902 Westm. Gaz. 23 June 8/2 All scientists have declared it impossible to construct a true Anastigmat lens without the aid of the Jena glass.
1908 Westm. Gaz. 6 June 14/2 The best lens for copying purposes is..one of the flat field anastigmats.
1957 S. W. Amos & D. C. Birkinshaw Television Engin. I. ix. 187 For lens combinations it [sc. elimination of curvature of field] can be achieved, if the lenses are separated, by correct choice of lens constants. A lens combination thus corrected is termed an anastigmat.
This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2011).
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n.1890