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Proceedings Paper

The Modern Zoom Lens For 35 Millimeter Photography
Author(s): Ellis Betensky
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Paper Abstract

The modern zoom lens for 35 millimeter photography has a focal length range extending from the wide angle to telephoto, potentially replacing several single focal length lenses or zoom lenses of small range as the standard photographic objective. This recent development appears to be the result of a continuous design evolution; each new design widening the range of power change utilized by the particular configuration. When a particular configuration is extended too far, the lens design necessary for aberration correction becomes complex, and a new configuration is developed.

Paper Details

Date Published: 26 July 1985
PDF: 20 pages
Proc. SPIE 0531, Geometrical Optics, (26 July 1985); doi: 10.1117/12.946515
Show Author Affiliations
Ellis Betensky, Opcon Associates, Inc. (United States)


Published in SPIE Proceedings Vol. 0531:
Geometrical Optics
Robert E. Fischer; Warren J. Smith, Editor(s)

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