Title:
カメラボディ、交換レンズ及び撮像装置
Document Type and Number:
Japanese Patent JP6459409
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a camera body that can optimally detect a focus adjustment state of an optical system.SOLUTION: A camera body 2 mountable to an interchangeable lens 3 comprises: a reception unit 21 that receives a first image plane movement coefficient varying with a position on an optical axis of a focusing optical system 33, and a second image plane movement coefficient equal to or less than a value of the first image plane movement coefficient from the interchangeable lens 3; and a determination unit 21 that, when determining that the focusing optical system is present within a prescribed range, determines irregularity when the second image plane movement coefficient varies, and, when determining that the focusing optical system 33 is not present within the prescribed range, does not determine irregularity when the second image plane movement coefficient varies.SELECTED DRAWING: Figure 1
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Inventors:
Hiroyuki Tomita
Application Number:
JP2014227463A
Publication Date:
January 30, 2019
Filing Date:
November 07, 2014
Export Citation:
Assignee:
NIKON CORPORATION
International Classes:
G02B7/28; G02B7/34; G02B7/36; G03B13/36; G03B17/14; H04N5/232
Domestic Patent References:
| JP2007047468A | ||||
| JP2014048566A | ||||
| JP2013257427A |
Foreign References:
| WO2013069795A1 | ||||
| WO2014133152A1 |
Attorney, Agent or Firm:
Seiji Ohno
Kobayashi Hideyoshi
Hiroshi Otani
Matsuno Chihiro
Kobayashi Hideyoshi
Hiroshi Otani
Matsuno Chihiro