anastigmatic

American  

[an-uh-stig-mat-ik, a-nas-tig-] / ˌæn ə stɪgˈmæt ɪk, æˌnæs tɪg- /

adjective

Optics.

1. (of a lens) not having astigmatism; forming point images of a point object located off the axis of the lens; stigmatic.

---

anastigmatic British  

/ ˌænəstɪɡˈmætɪk /

adjective

1. Also: stigˈmatic.  (of a lens or optical device) not astigmatic

---

Etymology

Origin of anastigmatic

First recorded in 1885–90; an- ¹ + astigmatic

Example Sentences

You are too conscious of the soft focus lens and of the anastigmatic lens.

From Project Gutenberg

There is no country in which an anastigmatic lens is of more use to the photographer than Alaska, and every camera with which it is hoped to take winter scenes should have this equipment.

From Project Gutenberg

The two distinct types of lenses are the "rapid rectilinear" and the "anastigmatic," which names refer to their optical properties in distributing the light.

From Project Gutenberg

The lens should be a modern anastigmatic by a good maker.

From Project Gutenberg

Systems in which the two astigmatic surfaces coincide are termed anastigmatic or stigmatic.

From Project Gutenberg