Anastigmat

A photographic lens completely corrected for spherical aberration, coma, and astigmatism.

An anastigmat or anastigmatic lens is a photographic lens completely corrected for spherical aberration, coma, and astigmatism. Early lenses often included the word Anastigmat in their name to advertise this new feature (Doppel-Anastigmat, voigtländer Anastigmat Skopar, etc.). All modern photographic lenses are close to being anastigmatic.

The first Anastigmat was designed by Paul Rudolph for the carl zeiss ag in 1890.

Many telescopes are three-mirror anastigmat.

image
Anastigmat
also known as
  • Anastigmatic lens
source
Adapted from content published on wikipedia.org
credit
  • Image By Panther - Own work, CC BY-SA 2.5 — from wikimedia.org
Last modified on July 30, 2020, 11:59 pm
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