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High-magnification fundus photography Kenichi Baba 1 , Kimiharu Noyori 1 , Toshiharu Shimizu 2 , Shozi Tanaka 2 , Naomi Kato 2 1Department of Ophthalmology, Saitama Medical School 2Nippon Kogaku Inc. pp.717-719
Published Date 1979/5/15
DOI https://doi.org/10.11477/mf.1410207883
  • Abstract
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A standard fundus camera subtending a fundus area of 30 degrees in diameter allows an object-film magnification of 2.5 times. We designed a new fundus camera that would allow a magni-fication of 6.7 times by inserting an additional magnifying lens in the optical pathway. The prototype proved insatisfactory because of insuf-flcient illumination, difficulty in focusing and lack of details in the photograph. It appears that a high-magnification fundus camera will have to be designed along an essentially new principle incorporating a large-aperture objective lens.


Copyright © 1979, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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