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anastigmat

American  
[uh-nas-tig-mat, an-uh-stig-mat] / əˈnæs tɪgˌmæt, ˌæn əˈstɪg mæt /

noun

Optics.
  1. a compound lens corrected for the aberrations of astigmatism and curvature of field.


anastigmat British  
/ æˈnæstɪɡˌmæt, ˌænəˈstɪɡmæt /

noun

  1. a lens or system of lenses designed to be free of astigmatism

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of anastigmat

1885–90; < German, back formation from anastigmatisch anastigmatic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

B. & L. Automatic shutter   $35.00 Ditto, with Zeiss Kodak anastigmat lens, f.

From Kodaks and Kodak Supplies 1914 by Canadian Kodak Company

The Six-Three Premos are designed to supply absolutely reliable cameras with every anastigmat advantage, at the very minimum of expense.

From Premo Cameras 1914 by Canadian Kodak Company

For those, however, who wish even greater efficiency and capabilities, we supply the anastigmat lens equipments.

From Kodaks and Kodak Supplies 1914 by Canadian Kodak Company

This is an advantage which will appeal strongly to many, as it enables one to utilize to the fullest extent the microscopic definition of his anastigmat lens.

From Premo Cameras 1914 by Canadian Kodak Company

And under proper conditions, exposures up to 1/250 second with a Compound shutter and 1/1000 with a focal plane shutter, can be made with the anastigmat.

From Kodaks and Kodak Supplies 1914 by Canadian Kodak Company

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