Photographic zoom fisheye lens design for DSLR cameras

Yufeng Yan, Jose Sasian

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Photographic fisheye lenses with fixed focal length for cameras with different sensor formats have been well developed for decades. However, photographic fisheye lenses with variable focal length are rare on the market due in part to the greater design difficulty. This paper presents a large aperture zoom fisheye lens for DSLR cameras that produces both circular and diagonal fisheye imaging for 35-mm sensors and diagonal fisheye imaging for APS-C sensors. The history and optical characteristics of fisheye lenses are briefly reviewed. Then, a 9.2- to 16.1-mm F/2.8 to F/3.5 zoom fisheye lens design is presented, including the design approach and aberration control. Image quality and tolerance performance analysis for this lens are also presented.

Original languageEnglish (US)
Article number095103
JournalOptical Engineering
Volume56
Issue number9
DOIs
StatePublished - Sep 1 2017

Keywords

  • aberration compensation
  • fisheye lenses
  • lens design
  • two group zooms
  • zoom lenses

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering(all)

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