anastigmat

[ uh-nas-tig-mat, an-uh-stig-mat ]

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

Origin of anastigmat

1
1885–90; <German, back formation from anastigmatischanastigmatic

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use anastigmat in a sentence

  • This equipment is the best to be had outside of the anastigmats and is amply efficient for the general run of amateur photography.

    Premo Cameras, 1914. | Canadian Kodak Company
  • Zeiss of Jena, towards the end of 1890, introduced his first series of "anastigmats."

  • It is a symmetrical lens, and in this different from the Zeiss anastigmats that preceded it.

British Dictionary definitions for anastigmat

anastigmat

/ (æˈnæstɪɡˌmæt, ˌænəˈstɪɡmæt) /


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

Origin of anastigmat

1
C19 from an- + astigmatic

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