While convenient for the optical designer, this turned out to be less convenient from the viewpoint of practical microscopy and was thus subsequently abandoned.
MTF is still used by optical designers as the principal criterion of image quality, although its measurement in production is less widespread than it used to be.
Rudolf Kingslake, optical designer (1903-2003)
The lens itself is an elaborate combination of glass elements and air pockets, carefully calibrated by an optical designer to produce a minimum of aberrations.
Roger Hayward (1899 - October 11, 1979) was an American artist, architect, optical designer and astronomer.
With additional degrees of freedom, optical designers have more latitude to correct more optical aberrations, more thoroughly.
The use of multiple elements gives several advantages to an optical designer:
Born between (1720-1773) was an English optical designer and scientific writer who was also well known as a maker of mathematical instruments and globes.
Their son was Edward was also a published optical designer.
In his professional life, he worked in New York City as an actor, writer, stage manager, lecturer, archivist, photographer, optical designer, curator and art gallery administrator.