a compound lens corrected for the aberrations of astigmatism and curvature of field.
Origin of anastigmat
1885–90; < German, back formation from anastigmatisch anastigmatic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for anastigmat
This makes a most desirable outfit at a surprisingly low price for an anastigmat equipment.
For those, however, who wish even greater efficiency and capabilities, we supply the anastigmat lens equipments.
a lens or system of lenses designed to be free of astigmatism
Word Origin for anastigmat
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