Photographic zoom fisheye lens design for DSLR cameras

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 apertur...

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Bibliographic Details
Published in:Optical engineering 2017-09, Vol.56 (9), p.095103-095103
Main Authors: Yan, Yufeng, Sasian, Jose
Format: Article
Language:English
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Summary: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.
ISSN:0091-3286
1560-2303
DOI:10.1117/1.OE.56.9.095103