1. a lens or optical system that is corrected for astigmatism
Usage: optics; technical

Examples

• The photographer invested in an anastigmat to improve image sharpness.
• Early camera lenses were often replaced with anastigmats for better optical performance.
• The telescope’s anastigmat eliminated the distortion at the edges of the field of view.
• Modern anastigmats are essential components in high-quality optical instruments.
• The microscope was fitted with an anastigmat to reduce aberrations.
• Professional photographers prefer anastigmats for their superior image quality.