Title:
撮像装置、撮像アクセサリ、および、中間アクセサリ
Document Type and Number:
Japanese Patent JP7443034
Kind Code:
B2
Abstract:
An image pickup apparatus to which an image pickup accessory having a focus lens and a diaphragm is detachably attachable includes a communication unit configured to communicate with the image pickup accessory, an image pickup unit, an exposure control unit, and a focus control unit. The communication unit transmits a request for diaphragm control to the image pickup accessory, and receives first information on a relationship between a diaphragm position and a variation in a light amount during the diaphragm control, second information corresponding to the diaphragm position, and third information corresponding to the diaphragm position and light transmittance of the image pickup accessory. The exposure control unit controls the exposure based on the first information and the second information. The focus control unit controls the driving of the focus lens based on the defocus amount calculated based on the third information.
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Inventors:
Gouya Takanashi
Application Number:
JP2019216648A
Publication Date:
March 05, 2024
Filing Date:
November 29, 2019
Export Citation:
Assignee:
Canon Inc
International Classes:
G03B17/14; G02B7/02; G02B7/08; G02B7/28; G02B7/34; G03B11/00; G03B13/36; H04N23/55; H04N23/66; H04N23/70
Domestic Patent References:
| JP10268382A |
Foreign References:
| WO2016031867A1 | ||||
| WO2016038934A1 |
Attorney, Agent or Firm:
Ryosuke Fujimoto
Atsuya Mizumoto
Tomoya Hirayama
Atsuya Mizumoto
Tomoya Hirayama