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Imaging apparatus, lens apparatus and control method

A technology of an imaging device and a control method, which is applied in the field of camera systems and can solve problems such as the inability to quickly perform switching processing and the like

Active Publication Date: 2014-01-01
CANON KK
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In these cases, switching processing may not be fast

Method used

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  • Imaging apparatus, lens apparatus and control method
  • Imaging apparatus, lens apparatus and control method
  • Imaging apparatus, lens apparatus and control method

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Embodiment Construction

[0024] Hereinafter, embodiments of the present invention will be described in detail based on the accompanying drawings. As the image pickup apparatus, an autofocus single-lens reflex digital camera to which an interchangeable lens can be mounted is taken as an example in the description. In the image capturing apparatus, a still image capturing mode and a video capturing mode can be selected, and the image capturing apparatus performs image capturing operations corresponding to the respective modes. refer to figure 1 , which describes the configuration of a camera system including an imaging device and a lens device. figure 1 is a block diagram showing an exemplary configuration of the interchangeable lens 1 and the camera body 17 .

[0025] The interchangeable lens 1 is a lens device detachable from the camera body 17 provided with an imaging optical system. figure 1 Only the focus lens 4 is shown, but various optical components such as a zoom lens and an image stabili...

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Abstract

In a camera system having an interchangeable lens apparatus (1) and a camera body (17), a lens controller (7) and a camera controller (12) conduct timely change between a first communication method for a video shooting mode and a second communication method for a still-image shooting mode, and reciprocally communicated via a contact unit (14). The camera controller (12) acquires time information in advance by an initial communication with the lens controller (7), and upon changeover from the first communication method to the second communication method, it interrupts communication after request information for changeover of the communication methods is transmitted to the lens controller (7), and initiates communication in the second communication method after elapse of a transition time indicated by time information. Upon changeover from the second communication method to the first communication method, the camera controller (12) initiates communication in the first communication method after elapse of a transition time indicated by the time information.

Description

technical field [0001] The present invention relates to a camera system composed of a lens device and an imaging device main body that enables the lens device to be removably mounted, and to a technique of changing a communication method between the two devices according to a shooting mode. Background technique [0002] In recent years, there has been a continuous transition from film cameras to digital cameras using image pickup elements. In addition to still image shooting, so-called single-lens reflex cameras with interchangeable lenses are even capable of video shooting. Now, as for the main body unit of the single-lens reflex camera, there is not only a type of observing a photographic subject using an optical observation system including a so-called mirror, but also a type of observing by display of a photographed image on a monitor screen. During video shooting and preview shooting, an operation (so-called "swing operation") is performed in which the focus lens is mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232G03B17/14
CPCG03B17/14H04N5/23248H04N23/663H04N23/672H04N23/67H04N23/667
Inventor 森田拓良高梨豪也
Owner CANON KK
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