WO2007148453A1

WO2007148453A1 - Camera body, camera system, interchangeable lens unit, and control method

Info

Publication number: WO2007148453A1
Application number: PCT/JP2007/054431
Authority: WO
Inventors: Takeo Santo; Hiroshi Ueda; Kaoru Mokunaka
Original assignee: Panasonic Corporation
Priority date: 2006-06-20
Filing date: 2007-03-07
Publication date: 2007-12-27
Also published as: JP2009204628A

Abstract

In a conventional digital camera having an interchangeable lens unit in which a shake correction device is mounted, it is not possible to perform operation at a digital camera body to select the start or stop of drive of and operation modes of the shake correction device. A camera system (100) of the invention has a camera body (1) to which an interchangeable lens unit (2) is detachably attached, the lens unit (2) having a shake correction device for correcting image blurring by driving a correcting lens depending on a hand shake and other vibration detected. The camera body (1) has a lens mount (3) to which the interchangeable lens (2) is detachably attached, and also has setting input section (31) for selecting the start or stop of drive of the shake correction device of the lens unit (2). The camera system (100) enables image blurring correction with high operability.

Description

Specification

Camera body, camera system, interchangeable lens unit, and control method

Technical field

The present invention relates to a camera body, a camera system, an interchangeable lens unit, and a control method. In particular, the present invention relates to a control method for image blur correction when an interchangeable lens unit including a shake correction device for correcting image blur is attached to a camera body to which the interchangeable lens unit can be attached and detached.

Background art

In recent years, an imaging apparatus such as a digital still camera (hereinafter referred to as “camera system” t).

) Is increasingly demanded for a shake correction function that corrects image blur caused by camera shake due to high image quality. On the other hand, single-lens reflex digital cameras that can attach and detach a plurality of interchangeable lens units with different focal lengths, that is, can be interchanged rapidly, and photographers can use interchangeable lens units that suit the scene in various scenes. This makes it a very convenient system.

Conventionally known camera systems having a shake correction device include a vibration detection unit that detects vibration of a camera system that causes image blur such as camera shake, and a calculation unit that calculates an appropriate correction amount for image blur. An image blur correction lens, a lens driving unit for driving the image blur correction lens, and a normal correction mode in which a steady shake correction is performed or a release is in progress (a focusing operation is performed on a subject in the camera system). A correction mode selection unit that selects either one of the release linked correction modes. In the camera system, when the constant correction mode is selected, image blur correction by the lens driving unit is started after the vibration detection operation by the vibration detection unit is started. When the release-linked correction mode is selected by the correction mode selection unit, image blur correction is performed by the lens drive unit only during the release.

[0003] The above-described conventional camera system includes, for example, an interchangeable lens unit and a camera body. In this camera system, the vibration detection unit, calculation unit, correction lens, lens drive unit, and correction mode selection unit are mounted on an interchangeable lens unit (imaging lens device). These components mounted on the interchangeable lens unit detect the release signal, battery consumption, etc. through communication with the camera body, and control of the normal correction mode and release linked correction mode is executed. (For example, Patent Document 1).

In addition, for example, in a conventional camera system having another image blur correction device, in combination with electronic shake correction, a framing period (the camera system is intentionally powered so that the photographer can determine the composition of the subject). The camera system that realizes the image blur correction function that achieves both the image blur correction during the release period and the high-precision image blur correction during the release, and the low-frequency component of the horizontal correction operation during panning shot removal. A camera system has been proposed that has a panning mode that eliminates the effects of the panning motion on shake compensation. Patent Document 1: Japanese Patent Laid-Open No. 5-224270

Disclosure of the invention

[0004] (Problems to be solved by the invention)

In the conventional camera system described in Patent Document 1 described above, when an operation (selection operation) such as driving start or stop of the shake correction device or switching of the shake correction operation mode is performed. The photographer needs to operate a correction mode selection unit such as a mode switching switch individually mounted on the interchangeable lens unit side. For this reason, since the selection operation cannot be performed on the camera body side, there is a problem that the selection operation is difficult for the photographer during the framing in which the photographer determines the composition of the subject in the camera system.

Furthermore, when realizing the image blur correction function in combination with the above-mentioned electronic shake correction or when realizing the function by the panning mode, the interchangeable lens unit is provided with a function for switching between a plurality of correction operation modes. There is a need. For this reason, there is a problem in the replacement lens unit when the correction mode selection section such as the switching switch for selecting the operation mode is enlarged.

[0005] In view of the above-described problems, the present invention provides a shake correction when a detachable interchangeable lens unit having a shake correction device is connected to a camera body, and the camera body is also mounted on the interchangeable lens unit. It is possible to select (control) the drive start or drive stop of the device, or to select a correction operation mode. The purpose is to provide a camera body and an interchangeable lens unit used for each. Furthermore, it aims at providing the control method in a camera system.

(Means for solving problems)

The first invention includes a lens mount for detachably mounting an interchangeable lens unit, a connection unit, a detection unit, an interchangeable lens unit information acquisition unit, a setting selection input unit, a function information acquisition unit, and function control information. A camera body including an allocation unit and a control unit. The connecting portion is electrically connected to the interchangeable lens unit by attaching the interchangeable lens unit to the lens mount. When the interchangeable lens unit is attached to the lens mount, the detection unit drives the correction lens in the interchangeable lens unit via the connection unit according to detected camera shake and other vibrations to correct image blur. Detects whether there is a shake correction device. The interchangeable lens unit information acquisition unit acquires the interchangeable lens unit information stored in the interchangeable lens unit via the connection unit when the interchangeable lens unit is attached to the lens mount. The setting selection input unit receives function control information for controlling the operation of a predetermined function. The function information obtaining unit obtains function information realized by the interchangeable lens unit information power interchangeable lens unit. The function control information assigning unit associates the input function control information with the function information. The control unit is associated with the input function control information when the detection unit detects that the shake correction device is present in the interchangeable lens unit and the input function control information is input to the setting selection input unit. The shake correction device is controlled to realize the function corresponding to the function information.

This camera body has a connection part that is electrically connected to the interchangeable lens unit by attaching the interchangeable lens unit to the lens mount. When the interchangeable lens unit is attached to the lens mount by the detector In the interchangeable lens unit, it is possible to detect whether or not there is a shake correction device that drives the correction lens in accordance with the detected camera shake and other vibrations to correct the image blur. When the detection unit detects that the shake correction device is present in the interchangeable lens unit, the function information acquisition unit acquires the function information realized by the interchangeable lens unit information power and the function control information allocation unit. Thus, the input function control information can be associated with the function information. Further, when the input function control information is input to the setting selection input unit by the control unit, it is input. The shake correction apparatus is controlled so as to realize the function corresponding to the function information associated with the force function control information.

[0007] With this, when a detachable interchangeable lens unit having a shake correction device is connected to the camera body, operations on the camera body that the photographer gets used to operating (operations by the setting input unit) ), It is possible to operate the shake correction device mounted on the interchangeable lens unit, so that the operability can be improved.

The second invention is the first invention, wherein the function control information assigning unit assigns the input function control information to function information for instructing start or stop of driving of the shake correction apparatus. The control unit is based on the input function control information when the detection unit detects that the shake correction device is present in the interchangeable lens unit and the input function control information is input to the function setting selection input unit. Start or stop driving of the shake correction apparatus.

As a result, when a detachable interchangeable lens lens with a shake correction device is connected to this camera body, it is mounted on the interchangeable lens unit by an operation on the camera body (operation by the setting input unit). It is possible to start or stop driving the shake correction device.

[0008] The third invention is the first invention, wherein the function control information assigning unit assigns the input function control information to function information for instructing a correction operation mode of the shake correction apparatus. The control unit is based on the input function control information when the detection unit detects that there is a shake correction device in the interchangeable lens unit and the input function control information is input to the function setting selection input unit. To determine the correction operation mode of the shake correction apparatus.

As a result, when a detachable interchangeable lens lens with a shake correction device is connected to this camera body, it is mounted on the interchangeable lens unit by an operation on the camera body (operation by the setting input unit). The correction operation mode of the shake correction device can be determined.

The fourth invention is the third invention, wherein the function control information allocating unit receives a plurality of input function control information when the shake correction apparatus can execute the shake correction operation in a plurality of correction operation modes. Assigned to the function information for instructing a plurality of correction operation modes of the shake correction apparatus. The setting selection input section is designed to compensate for shakes in the shake correction device using multiple correction operation modes. When normal operation can be executed, function control information for selecting any one of a plurality of correction operation modes can be input.

[0009] Thus, when a detachable interchangeable lens unit having a shake correction device is connected to this camera body, it is mounted on the interchangeable lens unit by an operation on the camera body (operation by a setting input unit). One correction operation mode can be selected from a plurality of correction operation modes of the shake correction apparatus.

The fifth invention is the first invention, further comprising a shake correction unit that corrects the image blur according to the detected camera shake and other vibrations. When the detection unit detects that the shake correction device is present in the interchangeable lens unit, the function control information allocation unit performs at least one operation of the shake correction device and the shake correction unit as input function control information. Assigned to the function information indicated. The control unit detects at least the shake based on the input function control information when the detection unit detects that the shake correction device is present in the interchangeable lens unit and the input function control information is input to the setting selection input unit. Either one of the correction device or the shake correction unit is operated.

[0010] Thus, when a detachable interchangeable lens unit having a shake correction device is connected to the camera body, the shake of the replacement lens unit can be performed by an operation on the camera body (operation by the setting input unit). Either one or both of the correction device and the shake correction unit of the camera body can be operated.

6th invention is 5th invention, Comprising: When a detection part detects that a shake correction apparatus exists in an interchangeable lens unit, a function control information allocation part is at least a shake correction apparatus and a shake correction part. Is assigned to the function information instructing to start or stop driving. The control unit detects at least the shake based on the input function control information when the detection unit detects that the shake correction device is present in the interchangeable lens unit and the input function control information is input to the function setting selection input unit. Either the correction device or the shake correction unit is started or stopped.

[0011] With this, when a detachable interchangeable lens unit having a shake correction device is connected to the camera body, the shake of the replacement lens unit can be performed by an operation on the camera body (operation by the setting input unit). One or both of the correction device and the shake correction part of the camera body are misaligned. Can be started or stopped.

The seventh invention is the fifth invention, wherein the function control information allocating unit is configured to input the input function control information, and function information for instructing at least one correction operation mode of the shake correction device and the shake correction unit. Assign to. When the detection unit detects that the shake correction device is present in the interchangeable lens unit, and the input function control information is input to the function setting selection input unit, the control unit is at least based on the input function control information. Either one of the shake correction device and the shake correction unit is determined.

[0012] With this, when a detachable interchangeable lens unit having a shake correction device is connected to the camera body, the shake of the replacement lens unit can be performed by an operation on the camera body (operation by the setting input unit). One or both of the correction operation modes can be determined between the correction device and the shake correction unit of the camera body.

An eighth invention is a camera system comprising the camera body according to any one of the first to seventh inventions, and an interchangeable lens unit that is detachably attached to a lens mount of the camera body. As a result, when a removable interchangeable lens unit having a shake correction device is connected to the camera body, the interchangeable lens can be operated by an operation on the camera body (operation by the setting input unit) that the photographer is used to operating. Since the shake correction device mounted on the unit can be operated, a camera system that can improve operability can be realized.

[0013] A ninth invention is an interchangeable lens unit that is used in a camera system together with the camera body according to any one of the first to seventh inventions and is detachably attached to a lens mount of the camera body. is there.

As a result, when a removable interchangeable lens unit having a shake correction device is connected to the camera body, the interchangeable lens can be operated by an operation on the camera body (operation by the setting input unit) that the photographer is used to operating. Since the shake correction device mounted on the unit can be operated, the operability can be improved. Also, with this interchangeable lens unit, an interchangeable lens unit that constitutes a camera system together with the camera body can be realized.

A tenth aspect of the invention is an interchangeable lens unit, a lens mount on which the interchangeable lens unit is detachably mounted, and a connecting portion that is electrically connected to the interchangeable lens unit by mounting the interchangeable lens unit on the lens mount. An input machine for controlling the operation of a predetermined function And a setting selection input unit to which function control information is input. This control method includes a detection step, an interchangeable lens unit information acquisition step, a function information acquisition step, a function control information allocation step, and a control step. In the detection step, when the interchangeable lens unit is attached to the lens mount, the correction lens is driven into the interchangeable lens unit via the connection portion according to the detected camera shake and other vibrations, and the image blur is detected. It is detected whether or not there is a shake correction device that corrects. In the interchangeable lens unit information acquisition step, when the interchangeable lens unit is attached to the lens mount, the interchangeable lens unit information stored in the interchangeable lens unit is acquired via the connection unit. In the function information acquisition step, the information on the interchangeable lens unit information is also acquired by the interchangeable lens unit. In the function control information allocation step, the input function control information is associated with the function information. In the control step, when it is detected in the detection step that the shake correction device is present in the interchangeable lens unit, when the input function control information is input to the setting selection input unit, it is associated with the input function control information. The shake correction device is operated so as to realize the function corresponding to the function information.

In this control method, when the interchangeable lens unit is mounted on the lens mount in the detection step, the correction lens is driven in the interchangeable lens unit according to the detected camera shake and other vibrations to correct the image blur. It is possible to detect whether there is a shake correction device. When it is detected by the detection step that the shake correction device is present in the interchangeable lens unit, the function information acquisition step acquires the function information realized by the interchangeable lens unit from the interchangeable lens unit information, and the function control information. The assigning step associates the input function control information with the function information. Furthermore, when the input function control information is input to the setting selection input unit by the control step, the shake correction apparatus is controlled so as to be associated with the input function control information and to realize a function corresponding to the function information. The

As a result, when a detachable interchangeable lens unit having a shake correction device is connected to the camera body, the camera body is familiar with the operation (operation by the setting input unit). Operate the image stabilizer installed in the interchangeable lens unit Therefore, the operability can be improved.

[0015] (Effect of the invention)

According to the present invention, when a detachable interchangeable lens unit having a shake correction device is connected, it is possible to select (control) driving start or stop of the shake correction device even on the camera body, or to set the correction operation mode. It is possible to provide a camera system that can be selected and improved in operability, and a camera body and an interchangeable lens unit used therefor. Furthermore, a control method in the camera system can be provided. Brief Description of Drawings

FIG. 1 is a functional block diagram of the camera system according to the first embodiment of the present invention with the interchangeable lens unit 2 attached.

FIG. 2 is a diagram showing a display device and a setting input unit as viewed from the rear of the camera body according to the first embodiment of the present invention.

FIG. 3 is a block diagram of the hard- er of the shake correction device for the interchangeable lens unit according to the first embodiment of the present invention.

FIG. 4 is an exploded perspective view of a shake correction lens unit of the interchangeable lens unit according to the first embodiment of the present invention.

FIG. 5 is a flowchart for explaining the operation of shake correction drive control of the camera system according to the first embodiment of the present invention.

FIG. 6 is a flowchart for explaining the operation of shake correction drive control of the camera system according to the second embodiment of the present invention.

FIG. 7 is a diagram showing a setting screen when performing various settings of the camera body according to the second embodiment of the present invention.

FIG. 8 is a diagram showing an example of a screen displaying information set in the camera body according to the second embodiment of the present invention.

Explanation of symbols

[0017] L imaging optical system

Df Defocus amount

X optical path 100 camera system

1 Camera body

2 Interchangeable lens unit

3 Lens mount

4 Quick return mirror

10 unit

11 Imaging sensor

12 Body microcomputer

16 LCD monitor

20 Lens microcomputer

21 Angular velocity sensor

22 Image stabilization lens group

23 Shake correction unit Lens control unit

24 Focus lens group

28 Stabilization lens unit

29 Lens memory

30 Setting control section

31 Setting input section

36 body memory

50 Release button

52 Pitching frame

54 Keying movement frame

83 Image stabilizer mode icon

91 Camera body side connection

92 Interchangeable lens side connection

BEST MODE FOR CARRYING OUT THE INVENTION

[First embodiment]

The imaging device (camera system) according to the first embodiment of the present invention will be described with reference to the drawings. Light up.

<1. 1: Overall configuration of camera system>

FIG. 1 shows an overall configuration diagram of a camera system 100 according to the first embodiment of the present invention. FIG. 1 is a functional block diagram of the camera system 100 according to the first embodiment, and is a functional block diagram showing a state in which the interchangeable lens unit 2 is attached to the camera body 1. The camera system 100 includes a camera body 1 and an interchangeable lens unit 2. The interchangeable lens unit 2 is detachably attached to a lens mount 3 provided in front of the body of the camera body 1 of the camera system 100.

[0019] (1.1.1: Camera body)

The camera body 1 includes a quick return mirror 4 that changes the path of light from the subject, a viewfinder optical system 19 for visually recognizing the subject image, a focus detection unit 5 that performs focus detection, and a shutter unit that opens and closes the shutter. 10. An imaging unit 71 that acquires a subject image as a captured image, an image display unit 72 that displays the captured image, a shutter control unit 14 that controls the shutter unit 10, and an image storage unit 73 that stores the captured image. In addition, the camera body 1 has a body microcomputer 12 that controls various sequences of the camera body 1, a function selection information for controlling the operation of a predetermined function in the camera system 100, a setting selection input unit 90, an exchange A lens mount 3 for mounting the lens unit 2 and a camera body side connecting portion (electrical section) 91 that is electrically connected to the interchangeable lens unit 2 by mounting the interchangeable lens unit to the lens mount 3 are provided.

Note that the body microcomputer serves as a detection unit, an interchangeable lens unit information acquisition unit, a function information acquisition unit, a function control information allocation unit, and a control unit. The body microcomputer communicates with the lens microcomputer 20 in the interchangeable lens unit, obtains various data related to the interchangeable lens unit, analyzes the acquired data, etc. The functions of the information acquisition unit and the function control information allocation unit are realized.

The quick return mirror 4 mainly includes a main mirror 4a that can reflect and transmit incident light, and a sub mirror 4b that is provided on the back side of the main mirror 4a and reflects transmitted light from the main mirror 4a. The quick return mirror controller (not shown) can be flipped out of the optical path X. The main mirror 4a splits the incident light into two light beams that are reflected. The light beam is guided to the finder optical system 19, and the transmitted light beam is reflected by the sub mirror 4 b and guided to the focus detection unit 5.

The finder optical system 19 mainly introduces a finder screen 6 on which a subject image is formed, a pentaprism 7 that converts the subject image into an erect image, and an erect image of the subject to the finder eyepiece window 9. It is composed of an eyepiece 8 and a viewfinder eyepiece window 9 through which a photographer observes a subject image.

The focus detection unit 5 is a unit that detects whether or not the image formed by the light of the subject power is in focus by detecting the reflected light from the sub-mirror 4b (detects the focus). Focus detection is performed by the phase difference detection method.

The imaging unit 71 mainly includes an imaging sensor 11 such as a CCD that performs photoelectric conversion, and an imaging sensor control unit 13 that controls the imaging sensor 11, and acquires a subject image as a captured image. The imaging unit 71 converts the subject image by the incident light into an electrical signal that forms a captured image.

[0022] The image display unit 72 includes an image display liquid crystal monitor 16 and an image display control unit 15 that controls the operation of the image display liquid crystal monitor 16.

The image storage unit 73 includes, for example, an image recording / reproducing unit 18 that records and reproduces a captured image on a card-type recording medium (not shown), and an image recording control unit 17 that controls the operation of the image recording / reproducing unit 18. It is composed.

The body microcomputer 12 is a control device that controls the center of the camera body 1 and controls various sequences. The body microcomputer 12 is equipped with, for example, a CPU, ROM, and RAM, and the body microcomputer 12 can realize various functions by reading a program stored in the ROM into the CPU. The body microcomputer 12 is connected to the body memory 36 and can access various data stored in the body memory 36. The body microcomputer 12 outputs a command (for example, a control signal or a command) to the shutter control unit 14, the image sensor control unit 13, the image display control unit 15, the image recording control unit 17, etc. The image sensor control unit 13, the image display control unit 15, the image recording control unit 17 and the like are caused to execute the respective controls. The body microcomputer 12 is connected to the lens microcomputer 20 via an interface, and the lens microcomputer 2 Communication between microcomputer and 0. When the interchangeable lens unit 2 equipped with the lens microcomputer 20 is attached to the lens mount 3 of the camera body 1, the camera body 1 and the interchangeable lens unit 2 are electrically connected by the camera body side connection section 91. As a result, the body microcomputer 12 and the lens microcomputer 20 can communicate with each other.

In addition, the body microcomputer 12 detects whether or not the interchangeable lens unit 2 has a force that includes an image blur correction unit 82 including a shake correction lens unit 28 as a shake correction device. Specifically, the body microcomputer 12 receives information on whether or not the shake correction lens unit 28 exists in the interchangeable lens unit 2 from the lens microcomputer 20 of the interchangeable lens unit 2 through communication between microcomputers (this information is, for example, Is received in the lens memory 29.), it is detected whether or not the shake correction lens unit 28 exists. If the interchangeable lens unit 2 cannot be electrically connected via the camera body side connecting portion 91, the interchangeable lens unit 2 is determined to be an interchangeable lens unit 2 that does not support electronic control, and the body The microcomputer 12 determines that the image blur correction unit 82 including the shake correction lens unit 28 as the shake correction device does not exist in the interchangeable lens unit 2.

The setting selection input unit 90 includes a setting control unit 30 and a setting input unit 31. The setting input unit 31 is, for example, a button that can input function control information when pressed by a photographer. The function control information input from the setting input unit 31 is allocated in advance by the body microcomputer 12 and the setting control unit 30 to information for realizing a predetermined function. Based on the function control information input from the setting input unit 31, the setting control unit 30 performs predetermined control together with the body microcomputer 12 in order to realize the function assigned to the function control information. It should be noted that the setting input unit 31 may also be configured with a plurality of buttons and the like.

(1.1.2: Interchangeable lens unit)

Next, the configuration of the interchangeable lens unit 2 will be described by taking the interchangeable lens unit 2 having the image blur correcting unit 82 including the shake correcting lens unit 28 as a shake correcting device as an example.

[0025] The interchangeable lens unit 2 includes an imaging optical system L for connecting a subject image to the imaging sensor 11 in the camera system 100, and mainly includes a focus adjustment unit 80 that performs focusing, and an aperture adjustment that adjusts the aperture. Part 81, detecting camera system 100 blur due to camera shake etc. Blur detection unit 21, image blur correction unit 82 including a shake correction lens unit 28 as a shake correction device for correcting image blur due to camera shake, etc., aperture control unit 27 for controlling aperture adjustment unit 81, image blur correction unit It is electrically connected to the shake correction lens unit controller 23 that controls 82, the lens microcomputer 20 that controls various sequences of the interchangeable lens unit 2, the lens memory 29, and the camera unit side connector unit 91. The interchangeable lens side connecting portion 92 is configured.

The focus adjustment unit 80 mainly includes a focus lens group 24 that adjusts the focus, a focus lens group control unit 25 that controls the operation of the focus lens group 24, and a force.

[0026] The aperture adjustment unit 81 is mainly composed of an aperture unit 26 that adjusts the aperture or opening, and an aperture control unit 27 that controls the operation of the aperture unit 26.

The blur detection unit 21 mainly includes an angular velocity sensor 41 that detects the motion of the camera system 100 itself including the imaging optical system L, and a high frequency band that removes a DC drift component from unnecessary band components included in the output of the angular velocity sensor 41. Adjust the output signal level of HPF42 as a pass filter, LPF43 as a low-pass filter that removes the resonance frequency component and noise component of the unnecessary band component included in the output of the angular velocity sensor 41, and the angular velocity sensor 41. The amplifier 44 is configured to perform, and the AZD conversion unit 45 that converts the output signal of the amplifier 44 into a digital signal.

The angular velocity sensor 41 outputs both positive and negative angular velocity signals depending on the direction of movement of the force camera system 100 based on the output when the camera system 100 is stationary. The angular velocity sensor 41 is a sensor that detects movement in the winging direction orthogonal to the optical axis, for example. Examples of the angular velocity sensor 41 include a gyro sensor. In FIG. 3, the angular velocity sensor 41 in only one direction is shown, and the shake detection unit in the pitching direction is omitted. As described above, the angular velocity sensor 41 built in the shake detection unit 21 has a function of detecting the movement of the camera system 100 due to camera shake and other vibrations.

[0027] The image blur correction unit 82 mainly includes a shake correction lens unit 28 including a blur correction lens group 22 constituting a part of the imaging optical system L, and a shake correction lens unit control unit 23 and a force. .

The shake correction lens unit control unit 23 mainly includes a DZA conversion unit 46 and a shift control. The unit 47 and the movement amount detection unit 40 are configured. The DZA conversion unit 46 receives the correction lens drive control signal for driving the blur correction lens group 22 output from the lens microcomputer 20 and performs DA conversion. The shift control unit 47 moves the blur correction lens group 22 in a plane orthogonal to the optical axis (optical path X) of the imaging optical system L based on the correction lens drive control signal. The movement amount detection unit 40 detects the actual movement amount of the blur correction lens group 22. Further, the blur correction lens group 22, the shift control unit 47, and the movement amount detection unit 40 constitute a negative feedback control loop as shown in FIG. 3, and the shift control unit 47 is a movement amount detection unit. The movement control of the vibration reduction lens group 22 is performed so that the actual movement amount of the vibration reduction lens group 22 detected from 40 is less than a predetermined amount.

The interchangeable lens side connection portion 92 is electrically connected to the camera body side connection portion 91 when the interchangeable lens unit 2 is attached to the lens mount 3, and the body microcomputer 12 and the lens microcomputer 20 communicate between the microcomputers. Will be able to do.

The lens microcomputer 20 is a control device that controls the center of the interchangeable lens unit 2, and is connected to each part mounted on the interchangeable lens unit 2, and controls various sequences of the interchangeable lens unit 2. The lens microcomputer 20 includes, for example, a CPU, a ROM, and a RAM, and various functions can be realized by reading a program stored in the ROM into the CPU. The lens microcomputer 20 is connected to the lens memory 29, and can access various data stored in the lens memory. The lens memory 29 stores information as to whether or not the image blur correction unit 82 including the shake correction lens unit 28 as a shake correction device exists in the interchangeable lens unit 2. The lens microcomputer 20 accesses the lens memory 29, acquires this information, and transmits it to the body microcomputer 12, so that the body microcomputer 12 includes an image blur correction unit including the shake correction lens unit 28 in the interchangeable lens unit 2. Determine whether 82 is present or not. Information regarding whether or not the image blur correction unit 82 including the shake correction lens unit 28 as a shake correction device exists in the interchangeable lens unit 2 may be stored in a ROM or the like in the lens microcomputer. The lens microcomputer 20 outputs a command (e.g., control signal or command) to the focus lens group control unit 25, aperture control unit 27, shift control unit 47, etc. Each control is executed by the aperture control unit 27, the shift control unit 47, etc. Make it. Further, the lens microcomputer 20 is connected to the body microcomputer 12 through an interface, and performs communication between the body microcomputer 12 and the microcomputer.

[0029] In the lens memory 29, various programs for each interchangeable lens unit 2, or data indicating the relationship between the focal length and the distance to the subject and the amount of movement of the focus lens group 24, and a blur correction lens corresponding to the focal length are stored. Data on the shift amount from the center of the optical axis of group 22 is stored.

<1.2: Camera system operation>

The subject light that has passed through the interchangeable lens unit 2 is split into two light beams by the main mirror 4 a of the quick return mirror 4. The light beam reflected by the main mirror 4a is guided to the finder optical system 19. On the other hand, the light beam that has passed through the main mirror 4a is reflected by the sub-mirror 4b provided on the back side of the quick return mirror 4 and guided to the focus detection unit 5, where it is used for AF (autofocus). Used as luminous flux. The focus detection unit 5 generally performs focus detection by using a phase difference detection method.

[0030] The light beam reflected by the main mirror 4a is imaged on the finder screen 6. The photographer can observe the subject image formed on the finder screen 6 from the finder eyepiece window 9 through the pentaprism 7 and the eyepiece lens 8.

During normal shooting, the quick return mirror 4 is flipped out of the optical path X, and the shutter unit 10 is opened and the subject image is formed on the imaging surface of the imaging sensor 11. In addition, the quick return mirror 4 is disposed on the optical path X, and the shutter unit 10 is closed.

Inside the camera body 1 is a body microcomputer 12 that controls various sequences. The image sensor control unit 13 performs drive control of the image sensor 11. The shutter control unit 14 drives a shutter drive motor (not shown) based on a control signal from the body microcomputer 12 to control the drive of the shutter unit 10. The image display control unit 15 reads out image data from the image sensor 11 and controls to display a captured image on the image display liquid crystal monitor 16 after predetermined image processing. The image recording control unit 17 has an SD force (not shown) The recorded image is read / written to / from a recording medium such as a card via the image recording / reproducing unit 18.

[0031] The body memory 36 stores various programs for each camera body 1 or data used for shake correction. As data used for shake correction, data on the shift amount from the center of the optical axis of the image sensor 11 corresponding to the focal length of the exchange lens unit 2 is stored.

A setting selection input unit 90 for a photographer to perform various settings such as shooting operations and operating conditions is configured of a setting control unit 30 and a setting input unit 31. Figure 2 shows the display device and setting input unit 31 as seen from the back of the camera body 1. A plurality of setting input sections 31 are usually provided. For example, as shown in FIG. 2, a cross key button 3 la, a dial selection button 3 lb, a dedicated selection switch button 31c assigned to each setting, and a photographer Function buttons 31d that can be arbitrarily set are configured.

The detachable interchangeable lens unit 2 has an imaging optical system L for connecting a subject image to the imaging sensor 11 in the camera body 1. A lens microcomputer 20 that controls various sequences in the interchangeable lens unit 2 and incorporates various lens information and the like is installed. In the interchangeable lens unit 2, an angular velocity sensor 41 that detects the amount of image blur caused by camera shake and a shake correction lens unit control unit 23 that controls the drive of the shake correction lens unit 28 are installed. Has been. By controlling the movement of the shake correction lens unit 28, it is possible to eliminate the influence of camera shake or the like of the photographer and obtain a good captured image. In addition, a focus lens group control unit 25 that drives and controls the focus lens group 24 is mounted. Further, an aperture control unit 27 that controls the aperture unit 26 is mounted. The shake correction lens unit 28 corresponds to a shake correction device.

Next, the shake correction lens unit 28 will be described. FIG. 3 is a hardware block diagram of the shake correction device of the interchangeable lens unit 2, and FIG. 4 is an exploded perspective view of the shake correction lens unit 28.

In FIG. 3, a shake correction lens unit control unit 23 is a control unit that drives and controls the shake correction lens group 22. The shake correction lens group control unit 23 controls the shake correction lens group 22 in a plane orthogonal to the optical axis of the imaging optical system L. Move up / down / left / right. The movement detection unit 40 is used for the actual image stabilization lens group 22. The shift control unit 47 and the shift control unit 47 form a feedback control loop for driving the blur correction lens group 22.

The angular velocity sensor 41 is a sensor for detecting the movement of the camera system 100 itself including the imaging optical system L, and the direction of movement is based on the output when the interchangeable lens unit 2 and the camera body 1 are stationary. To output both positive and negative angular velocity signals. The angular velocity sensor 41 is a sensor that detects movement in the two directions of winging and pitching, and two sensors are provided, for example, on a circuit board (not shown) in the exchange lens unit 2. For convenience of explanation, Fig. 3 shows a block diagram for detecting motion in only one direction. Thus, the angular velocity sensor 41 has a function as a motion detection unit that detects the motion of the camera body 1 due to camera shake and other vibrations. The angular velocity sensor power control unit 49 controls ONZOFF of the power supplied to the angular velocity sensor 41.

The HPF 42 is a high-pass filter that removes a DC drift component in an unnecessary band component included in the output of the angular velocity sensor 41. The LPF 43 is a low-pass filter that removes the resonance frequency component and noise component of the sensor from unnecessary band components included in the output of the angular velocity sensor 41. The amplifier 44 is a circuit for adjusting the output signal level of the angular velocity sensor. The AZD converter 45 converts the output signal of the amplifier 44 into a digital signal, and the output is input to the lens microcomputer 20.

The lens microcomputer 20 performs filtering, integration processing, phase compensation, gain adjustment, clip processing, etc. on the output signal of the angular velocity sensor 41 captured via the AZD conversion unit 45, and is a shake correction lens group required for shake correction. It also functions as a control signal generator that obtains and outputs 22 drive control amounts (hereinafter referred to as “control signals”). The control signal obtained here is output to the shift control unit 47 via the DZA conversion unit 46. The shift control unit 47 drives and controls the blur correction lens group 22 based on this control signal, thereby correcting shake caused by the movement of the replacement lens unit 2 and the camera body 1, and caused by this shake. Image blur in the captured image can be corrected.

As shown in FIG. 4, the shake correction lens unit 28 is a unit that performs shake correction by moving the shake correction lens group 22 in a plane perpendicular to the optical axis. The arrow Y direction is the winging direction in which the movement direction of the image stabilization lens group 22 is the horizontal direction, and the arrow P direction is This is a pitching direction in which the moving direction of the correction lens is the vertical direction.

A blur correction lens group 22 is fixed to the pitching movement frame 52. The pitching moving frame 52 is provided with a guide portion 52a and a shaft 53. The pitching moving frame 52 is fitted to a shaft 55 that is supported by a later-described winging moving frame 54. Further, the shaft 53 is fitted in a guide groove 54a of a wing moving frame 54 described later. As a result, the pitching moving frame 52 is held movably in the arrow P direction with respect to the winging moving frame 54.

Similarly, the winging moving frame 54 is supported so as to be movable in the direction of arrow Y with respect to the fixed frame (not shown) of the shake correcting lens unit 28 via a shaft (not shown)! RU Therefore, the blur correction lens group 22 is movable in the arrow Y direction and the arrow P direction with respect to the fixed frame (not shown) of the shake correction lens unit 28 via the pitching moving frame 52 and the winging moving frame 54. Supported.

The pitching moving frame 52 includes a coil 57A for driving the blur correction lens group 22 in the wing direction and a coil 57B for driving the pitching, and a hall element (magnetic sensor) 58A that is a position detection sensor for detecting the amount of movement. And 58B, are installed. The coils 57A and 57B and the hall elements 58A and 58B are connected to a flexible printed board (flexible 'printed wiring cable) 59 and supplied with power from a circuit board (not shown) via the flexible printed board 59. receive. Further, electrical signals are transmitted and received between the coils 57A and 57B and the Hall elements 58A and 58B and elements on the circuit board via the flexible printed board 59.

[0037] Magnets 60A and 60B facing coils 57A and 57B, respectively, are arranged on a fixed frame (not shown) of the shake correction lens group. A yoke 61A is attached to the magnet 60A, and a yoke 61B force is attached to the magnet 60B.

By applying current to the coil 57A when driving the image stabilization lens group 22 in the arrow Y direction and to the coil 57B when driving in the direction of arrow P, the current is applied between the coil and the magnet facing each other. An electromagnetic force is generated in the coil by the electromagnetic action, and the correction lens can be driven.

The Hall elements 58A and 58B are components of the movement amount detection unit 40. The movement amount detection unit 40 uses the relative position change between the Hall elements 58A and 58B and the fixed magnets 60A and 60B, and uses the arrow Y direction and the arrow P direction of the shake correction lens group 22 for shake correction control. The amount of movement is detected.

[0038] In the lens memory 29, various programs for each imaging lens device (interchangeable lens unit) 2, or data indicating the relationship between the focal length and the distance to the subject and the movement amount of the focus lens group 24, and the focal length are stored. The data of the shift amount of the optical axis center force of the corresponding image stabilization lens group 22 is stored.

Generally, the correction range by the image blur correction device has a certain relationship with the focal length of the attached imaging lens device (interchangeable lens unit) 2. In other words, if the focal length of the interchangeable lens unit 2 is f and the angle at which the interchangeable lens unit 2 and the camera body 1 shake within a predetermined time (for example, within the exposure time) due to vibration is 0, an image is captured on the image sensor 11. The amount of movement ΔΥ is expressed by the following equation (1).

AY = f X tan 0 (1)

Therefore, as for the shift amount of the blur correction lens group 22, information on the maximum correctable angle Θ that can be corrected by the imaging lens device (interchangeable lens unit) 2 based on the image movement amount ΔY shown in the equation (1). Is stored in the lens memory 29.

Furthermore, the lens memory 29 also stores data such as the date of manufacture of the interchangeable lens unit 2 or power consumption necessary for driving the blur correction lens group 22 at the time of shake correction.

As described above, the shake correction block 48 includes the shake correction lens unit 28, the shake correction lens unit control unit 23, the angular velocity sensor 41, the lens microcomputer 20, and the like.

(1.2.1: Camera body shooting operation)

Next, the shooting operation of the camera body 1 will be described.

When the photographer turns on the power with the power switch (not shown) of the camera body 1, power is supplied to various units such as the body microcomputer 12 in the camera body 1 and the lens microcomputer 20 in the interchangeable lens unit 2. Various units are activated. The body microcomputer 1 2 in the camera body 1 is a lens that is electrically connected to the lens microcomputer 20 in the interchangeable lens unit 2. Various lens data are received via the camera body side connection section (electrical section) 91 and the interchangeable lens side connection section 92 of the mount 3 and recorded in the body memory 36 in the camera body 1. At this time, the body microcomputer 12 also receives information on whether or not the interchangeable lens unit 2 is equipped with the shake correction lens unit 28. That is, the body microcomputer 12 realizes a function of a detection unit that detects the presence or absence of a shake correction device.

Note that information regarding the presence or absence of a shake correction device in the interchangeable lens unit 2 is stored in the lens memory 29, for example.

Next, when the photographer presses the release button 50 halfway, the body microcomputer 12 acquires a defocus amount (hereinafter referred to as “Df amount”) from the focus detection unit 5, and the focus amount corresponding to the Df amount is obtained. Instructs the lens microcomputer 20 to drive the lens group 24. The lens microcomputer 20 controls the focus lens group control unit 25 to drive the focus lens group 24 by the amount of Df. As described above, when the focus detection and the driving of the focus lens group 24 are repeated, the Df amount becomes small, and when the Df amount becomes a predetermined amount or less, the body microcomputer 12 determines that the focus is achieved, and the lens microcomputer 20 Stop driving 24.

Subsequently, when the photographer fully presses the release button 50, the body microcomputer 12 causes the lens microcomputer 20 to set the aperture value calculated based on the output from the photometric sensor (not shown). Instruct. Then, the lens microcomputer 20 controls the diaphragm control unit 27 to narrow the diaphragm to the designated diaphragm value. Simultaneously with the instruction of the aperture value, the body microcomputer 12 retracts the quick return mirror 4 from the optical path X by a quick return mirror control unit (not shown). After the quick return mirror 4 is retracted from the optical path X, the imaging sensor control unit 13 instructs the imaging sensor 11 to drive the imaging sensor 11, and instructs the shutter unit 10 to operate the shutter unit 10. To do. The image sensor control unit 13 exposes the image sensor 11 for the time of the shutter speed calculated based on the output from the photometric sensor! /.

[0042] After the exposure is completed, the image sensor control unit 13 reads the image data from the image sensor 11, controls the image display liquid crystal monitor 16 to display the captured image after predetermined image processing, and records the image. The image data is written to the storage medium via the playback unit 18.

After the exposure is completed, the quick return mirror 4 and the shutter unit 10 are in the initial position. Reset. The body microcomputer 12 instructs the lens microcomputer 20 to reset the aperture to the open position. The lens microcomputer 20 issues a reset command to each unit, and each unit is reset. After the reset is completed, the lens microcomputer 20 notifies the body microcomputer 12 of the completion of the reset. The body microcomputer 12 waits for the reset completion information from the lens microcomputer 20 and the completion of a series of processes after exposure, and then confirms that the release button state force has not been pressed, and ends the shooting sequence.

[0043] (1.2.2: Specific operation of shake correction drive selection)

Next, a specific operation of the drive selection control of the shake correction device when the interchangeable lens unit 2 is attached to the camera body 1 will be described with reference to FIG.

FIG. 5 is a flowchart for explaining the operation of the camera system 100 (the operation including the operation state setting operation) when driving the shake correction apparatus.

The body microcomputer 12 of the camera body 1 has the force (electrically connected) that the interchangeable lens unit 2 is attached to the camera body 1 via the camera body side connection part (electrical section) 91 and the interchangeable lens side connection part 92. (Sl). Interchangeable lens unit 2 force When it is determined that the camera is attached to the camera body 1 via the camera body side connection section (electrical section) 91 and the interchangeable lens side connection section 92, the body microcomputer 12 To the lens memory 29 in the interchangeable lens unit 2 to acquire lens-specific information required by the camera body 1, such as functions that the interchangeable lens unit 2 can have and various control setting information such as focus drive. . Then, the body microcomputer 12 acquires the lens specific information acquired by the lens microcomputer 20 from the lens microcomputer 20 via inter-microcomputer communication (S2).

[0044] Subsequently, the body microcomputer 12 determines whether or not the shake correction lens unit 28 is mounted in the interchangeable lens unit 2, and (S3) the shake correction lens unit 28 is mounted. In this case, the camera is shifted to the shooting preparation state as it is. When the shake correction lens unit 28 is mounted, the body microcomputer 12 assigns to the setting input section 31 the selection (stop function) of the start or stop of shake correction drive operation (S4). Specifically, the setting control unit 30 assigns, for example, a function to select shake correction drive start and stop to the function button 3 Id installed on the back of the camera body 1. Then, turn the function button 31d to After the correction drive start / stop selection function is assigned, a desired operation (function) is realized in the camera system 100 by pressing the function button 31d. For example, a case where the shake correction drive start function is assigned to the upper button of the function button 31d and the shake correction drive stop function is assigned to the lower button of the function button 3 Id will be described. In this case, when the photographer presses the upper button of the function button 3 Id, the shake correction lens unit 28 is driven, and shake correction drive control is started. Then, when the photographer presses the lower button of the function button 31d, the drive of the shake correction lens unit 28 is stopped, and the shake correction drive control is stopped.

[0045] When the photographer presses the function button 31d to select the start of shake correction drive (S5), the body microcomputer 12 instructs the lens microcomputer 20 to start shake correction drive (for example, a command command or instruction control signal). ) Is transmitted, and the drive of the shake correction lens unit 28 is started (S6). At the same time, the image display control unit 15 displays a shake correction operation mode icon 883 on the liquid crystal monitor 16 in order to notify the photographer that the shake correction drive control has been started.

If the photographer attempts to cancel (stop) the shake correction drive by pressing the function button 31d again during shooting, the body microcomputer 12 sends a shake correction drive stop instruction to the lens microcomputer 20. The drive of the shake correction lens unit 28 is stopped (S7). At this time, the image display control unit 15 also hides the shake correction operation mode icon 883 on the liquid crystal monitor 16 in order to notify the photographer that the shake correction drive control has been stopped.

[0046] If the interchangeable lens unit 2 is equipped with a switch (selection switch) for selecting start or stop of shake correction drive control, the setting contents of the function button 31d assigned to the camera body 1 It may be possible to select a setting selection means (not shown) to prioritize which one of the settings set by the selection switch of the interchangeable lens unit 2 is prioritized. Note that the setting selection unit may be realized by the setting input unit 31. As described above, according to the first embodiment, for example, in an SLR digital camera (camera system 100), an image blur correction device is used. When the provided imaging lens device (interchangeable lens unit 2) is connected, the photographer can start or stop shake correction drive control using the buttons on the camera body 1 familiar with the operation. So easier to operate, turtle LASYSTEM 100 can be provided.

[0047] [Second Embodiment]

Next, the camera system 100 according to the second embodiment will be described. The camera system 100 of the present embodiment is different from the camera system 100 of the first embodiment in that the shake correction unit mounted on the interchangeable lens unit 2 has a plurality of shake correction operation modes. Note that the same reference numerals are given to those described in the first embodiment, and description thereof is omitted.

In the present embodiment, the interchangeable lens unit 2 has a plurality of shake correction operation modes, a normal correction mode in which the shake is always corrected, a release interlock correction mode in which the shake is corrected only during the release, and a horizontal correction at the time of panning shooting. As an example, a case of having a panning mode that removes the low-frequency component of the motion and excludes the influence of the panning motion on shake correction will be described.

<2.1: How to select operation mode>

The operation mode selection method will be described with reference to FIG.

FIG. 6 is a flowchart for explaining the operation (operation including operation state setting operation) of the camera system 100 when driving and controlling the shake correction apparatus.

The body microcomputer 12 of the camera body 1 has the interchangeable lens unit 2 attached to the camera body 1 via the camera body side connection section (electrical section) 91 and the interchangeable lens side connection section 92! It is determined whether or not it is connected to (SI 1). Interchangeable lens unit 2 force When it is determined that the camera is attached to the camera body 1 via the camera body side connection section (electrical section) 91 and the interchangeable lens side connection section 92, the body microcomputer 12 To the lens memory 29 in the interchangeable lens unit 2 to acquire lens-specific information required by the camera body 1, such as functions that the interchangeable lens unit 2 can have and various control setting information such as focus drive. . Then, the body microcomputer 12 acquires the lens specific information acquired by the lens microcomputer 20 from the lens microcomputer 20 via the communication between the microcomputers (S12).

[0049] Subsequently, the body microcomputer 12 determines whether or not the shake correction lens unit 28 is mounted in the interchangeable lens unit 2 (S13), and the shake correction lens unit 28 is mounted. If this is the case, shift to the shooting preparation state as it is. When the image stabilization lens unit 28 is installed, the body microcomputer 12 sends information on the number, type, name, etc. of the correction operation modes that the image stabilization lens unit 28 can have from the lens microcomputer 20. Is acquired (S 14). Based on the information, body microcomputer 12 assigns content (function) for selecting the type of correction operation mode to setting input unit 31 (S15). When the photographer selects a correction operation mode using the setting input unit 31 (S16), the body microcomputer 12 sends information indicating which correction operation mode is selected to the lens microcomputer 20, and the photographer selects the correction operation mode. The shake correction drive control is started in the corrected operation mode (S17).

[0050] <2.2: Specific selection method of correction operation mode>

A specific method for selecting the correction operation mode will be described with reference to FIG. 2, FIG. 7, and FIG. FIG. 7 is a setting screen for making various settings of the camera system 100, and FIG. 8 is an example of a screen (display screen) displaying information set in the camera body 1. FIG. This display screen is displayed on the setting display unit or the liquid crystal monitor 16 incorporated in the viewfinder eyepiece window 9. The photographer performs various settings such as shooting operation and operating conditions in the camera system 100 by using the setting control unit 30 and the setting input unit 31 installed in the camera body 1. For example, in FIG. 2, the setting input unit 31 includes a cross key button 31a, a dial selection button 31b, a selection switch button 31c, a function button 31d, and the like. Is configured.

The body microcomputer 12 sends an instruction (for example, command command or instruction control signal) to the image display control unit 15 based on various information about the correction operation mode acquired from the lens microcomputer 20. As shown in FIG. 7, the image display control unit 15 adds a “camera shake mode” 66 as a correction operation mode selection menu in the shooting setting menu screen, and displays it on the setting screen. When the photographer presses the cross key 31a to select the “shake mode” 66, the image display control unit 15 further adds a correction operation menu to the right side of the “shake mode” 66 menu display. To display. The correction operation menu is displayed based on various information about the correction operation mode acquired from the lens microcomputer 20. Figure 7 shows the situation where the photographer has selected the second “release interlock” 67 correction mode. When the photographer finishes selecting the correction operation mode, a correction operation mode icon 8 83 indicating that the release-linked correction operation mode is set is additionally displayed on the screen displaying the setting information in FIG. .

[0052] The contents represented by the icons displayed in the screen example displaying the setting information of the camera shown in FIG. 8 will be described. Icon 870 is the shooting mode, icon 871 is the aperture value, icon 8 72 is the shutter speed, icon 873 is the focus mode setting status, icon 8 74 is the exposure compensation status, icon 875 is the white balance setting status Icon 876 indicates ISO sensitivity, icon 877 indicates flash settings, icon 878 indicates remaining battery power, icon 879 indicates continuous shooting mode, icon 880 indicates the number of recorded pixels, Icon 881 indicates the screen aspect ratio, icon 882 indicates that the memory write operation is possible, and icon 884 indicates the number of shots. Also, if it is determined that the image stabilization lens unit 28 is not installed in the imaging lens unit (interchangeable lens unit) 2 (S 13), the “Camera shake mode” 66 selection menu and setting screen will be corrected in the shooting setting menu. The operation mode icon 883 is not displayed.

[0053] Further, as shown in the first embodiment, the selection content of the correction operation mode may be assigned to the function button 31d. By continuously pressing the function button 31d, the correction operation mode is sequentially switched together with the icon display on the setting screen. In this case, the photographer can directly select the correction operation mode only by pressing the function button 31d without displaying the shooting setting menu.

If the imaging lens device (interchangeable lens unit) 2 is equipped with a switch (selection switch) that selects the operation mode for shake correction drive, the settings made in the camera body 1 and the selection of the interchangeable lens unit 2 are selected. A setting selection unit (not shown) may be used to select which of the contents set by the switch has priority. The setting selection means may be realized by the setting input unit 31.

[0054] When the number of types of correction operation modes increases, it is necessary to increase the size of the selection switch if it is possible to select the correction operation mode in the interchangeable lens unit 2 using the selection switch. Therefore, if the correction operation mode can be selected on the camera body 1 without mounting the selection switch, the area occupied by the selection switch in the interchangeable lens unit 2 is increased. Since it is not necessary, the interchangeable lens unit 2 can be downsized (compact). In addition to the correction operation mode icon 883, the maximum correction angle Θ of the shake correction lens unit 28 of the interchangeable lens unit 2 may be displayed on a screen for displaying camera setting information.

As described above, according to the second embodiment, in the digital camera (camera system 100) to which the imaging lens device (interchangeable lens unit 2) can be attached and detached, the imaging lens device (interchangeable lens unit 2) provided with the shake correction device. When is connected, the photographer can select the shake correction drive operation mode using the buttons on the camera body 1 that are familiar with the operation. Therefore, for example, when determining the composition of the subject, it is possible to easily select the correction operation mode, and it is possible to provide the camera system 100 that can use shake correction more effectively.

[0055] [Other Embodiments]

Each processing of the above embodiment may be realized by node software or may be realized by software. Furthermore, it may be realized by mixed processing of software and nodeware.

The specific configuration of the present invention is not limited to the above-described embodiment, and various changes and modifications can be made without departing from the spirit of the invention.

Industrial applicability

[0056] The camera body, camera system, interchangeable lens unit, and control method according to the present invention require a digital still camera, a digital video camera, and a camera function that are required to be compatible with a removable imaging lens device (interchangeable lens unit). Therefore, the camera body, camera system, interchangeable lens unit, and control method according to the present invention are useful in the field. Can be implemented.

Claims

The scope of the claims

[1] A lens mount to which the interchangeable lens unit is detachably attached,

By attaching the interchangeable lens unit to the lens mount, a connection part electrically connected to the interchangeable lens unit;

When the interchangeable lens unit is attached to the lens mount, the correction lens is driven in the interchangeable lens unit through the connection portion according to detected camera shake and other vibrations, thereby causing image blur. A detection unit for detecting whether there is a shake correction device to be corrected,

When the interchangeable lens unit is mounted on the lens mount, an interchangeable lens unit information acquisition unit that acquires the interchangeable lens unit information stored in the interchangeable lens unit via the connection unit;

A setting selection input unit for inputting input function control information for controlling the operation of a predetermined function;

A function information acquisition unit that acquires function information realized by the interchangeable lens unit from the interchangeable lens unit information;

A function control information allocating unit for associating the input function control information with the function information; and when the detection unit detects that the shake correction device is present in the interchangeable lens unit, the setting selection input unit When the input function control information is input, a control unit that controls the shake correction device to realize a function corresponding to the function information associated with the input function control information;

Camera body with

[2] The function control information allocating unit allocates the input function control information to the function information instructing to start or stop driving the shake correction device,

The control unit is configured to detect the input function when the input unit control information is input to the function setting selection input unit when the detection unit detects that the shake correction device is present in the interchangeable lens unit. Based on the control information, start or stop driving the shake correction device,

The camera body according to claim 1.

[3] The function control information assigning unit assigns the input function control information to the function information instructing a correction operation mode of the shake correcting device,

The control unit is configured to detect the input function when the input unit control information is input to the function setting selection input unit when the detection unit detects that the shake correction device is present in the interchangeable lens unit. Based on the control information !, to determine the correction operation mode of the shake correction device,

The camera body according to claim 1.

[4] The function control information allocating unit, when the shake correction apparatus can execute a shake correction operation in a plurality of the correction operation modes, a plurality of the input function control information, Assigned to the function information instructing the correction operation mode of

When the shake correction apparatus can execute the shake correction operation in the plurality of correction operation modes, the setting selection input unit can select one of the correction operation modes from a plurality of the correction operation modes. Entering the function control information for selection,

The camera body according to claim 3.

[5] A shake correction unit that corrects image blur in response to detected camera shake and other vibrations is also provided.

When the detection unit detects that the shake correction device is present in the replacement lens unit, the function control information allocating unit acquires at least the input function control information between the shake correction device and the shake correction unit. Assigned to the function information instructing one of the operations,

The control unit is configured to detect the input function control information when the input unit control information is input to the setting selection input unit when the detection unit detects that the shake correction device is present in the interchangeable lens unit. Based on the above, at least one of the shake correction device and the shake correction unit is operated,

The camera body according to claim 1.

[6] The function control information allocating unit causes the shake correcting device to cause the replacement level to be changed by the detecting unit. Assigned to the function information instructing to start or stop driving of at least one of the shake correction device and the shake correction unit,

The control unit is configured to detect the input function when the input unit control information is input to the function setting selection input unit when the detection unit detects that the shake correction device is present in the interchangeable lens unit. 6. The camera body according to claim 5, wherein driving of at least one of the shake correction device and the shake correction unit is started or stopped based on control information.

[7] The function control information assigning unit assigns the input function control information to the function information instructing at least one of the shake correcting device and the shake correcting unit,

The control unit is configured to detect the input function when the input unit control information is input to the function setting selection input unit when the detection unit detects that the shake correction device is present in the interchangeable lens unit. 6. The camera body according to claim 5, wherein the correction operation mode of at least one of the shake correction device and the shake correction unit is determined based on control information.

[8] The camera body according to any one of claims 1 to 7, and

An interchangeable lens unit that is detachably attached to the lens mount of the camera body.

[9] It is used in a camera system together with the camera body according to any one of claims 1 to 7, and is detachably attached to the lens mount of the camera body.

Interchangeable lens unit.

[10] Interchangeable lens unit,

A lens mount for detachably mounting the interchangeable lens unit;

Setting selection input to which input function control information for controlling the operation of a predetermined function is input Force part,

A control method in a camera system comprising:

When the interchangeable lens unit is attached to the lens mount, the correction lens is driven in the interchangeable lens unit through the connection portion according to detected camera shake and other vibrations, thereby causing image blur. A detection step for detecting whether there is a shake correction device to be corrected;

An interchangeable lens unit information obtaining step for obtaining the interchangeable lens unit information stored in the interchangeable lens unit via the connecting portion when the interchangeable lens unit is attached to the lens mount;

A function information acquisition step of acquiring function information realized by the interchangeable lens unit from the interchangeable lens unit information;

A function control information allocation step for associating the input function control information with the function information;

In the detection step, when it is detected that the shake correction apparatus is present in the interchangeable lens unit, when the input function control information is input to the setting selection input unit, the input function control information is associated with the input function control information. A control step for controlling the shake correction device so as to realize a function corresponding to the function information;

A control method.