JP2009135812A - Camera system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a camera system in which photographer's operability is satisfactory and the sense of image blur correcting operation matches that of an operating switch, and in which an image blur correcting device is incorporated in both the camera body and an interchangeable lens device. <P>SOLUTION: The camera system (CS1) includes a camera main body (DC1) which ligh-receives an optical image (Lo) of a subject and photographs a subject image; and an interchangeable lens device (IL) which includes an imaging lens system (OL) which produces the relevant optical image (Lo), and is attachable to and detachable from the relevant camera body (DC1). Wherein, an image blue correction mode setting switch (210) of the interchangeable lens device (IL) is operated to set operation of an image blur correction sensor unit control section (171) in the camera body (DC1). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a camera system in which an image blur correction device is built in both a camera body and a lens, and more specifically, an interchangeable lens device having a built-in image blur prevention device in a digital camera having a built-in image blur prevention device. The present invention relates to a detachable camera system.

  In recent years, a single-lens reflex camera, which is a representative example of an interchangeable lens camera system, also converts a digital optical image of a subject into an electrical image signal and outputs the same as a normal camera (hereinafter, referred to as a normal camera). "Single-lens reflex digital camera") is rapidly spreading

  Even in a single-lens reflex digital camera, when observing a subject using a viewfinder, the light incident on the photographing lens (that is, the subject image) is reflected by a reflecting mirror disposed on the photographing optical path after the lens to change the optical path. The This reflected light is guided to the optical viewfinder as a normal image through a pentaprism or the like. A photographer or the like can see the subject image through the photographing lens through the optical viewfinder.

  In a single-lens reflex digital camera, a plurality of interchangeable lens devices having different focal lengths can be attached to one body. It is a very convenient system because it is possible to shoot by changing to an appropriate lens for each scene.

  Also, with the spread of SLR digital cameras, in addition to those who are proficient in camera operation such as conventional professionals and hi-amateurs, people who are not proficient in camera operation such as beginners also become new users of SLR cameras. It is coming. In general, even for single-lens reflex digital cameras that can directly check the photographed image of the subject with the viewfinder, it is very difficult for beginners to suppress the adverse effects on the photographed image caused by camera shake or movement of the subject. It is difficult.

  In particular, the greater the number of pixels of the image sensor, and the greater the length of the captured image that is printed, the greater the effect of image blur. As a countermeasure against image blur, for example, Japanese Patent Laid-Open No. 10-73860 (hereinafter referred to as Patent Document 1) proposes a camera system in which a camera shake correction device is built in an interchangeable lens device.

In addition, a standard for a single-lens reflex camera system in which a communication system between a digital camera body and an interchangeable lens apparatus, a lens mount, and the like are standardized has been proposed in order to improve user convenience. Since the digital camera main body and the interchangeable lens device compliant with the standard have compatibility, the user can shoot by combining the camera main body and the interchangeable lens device manufactured by different manufacturers.
Japanese Patent Laid-Open No. 10-73860

  Some interchangeable lens devices equipped with an image blur correction device are provided with an operation switch for controlling the operation of the image blur correction device. When such an interchangeable lens device is attached to a digital camera that is not equipped with an image blur correction device, the photographer operates the operation switch provided on the interchangeable lens device with the camera in the shooting posture. Therefore, it is possible to control the operation of the image blur correction apparatus, which is highly convenient.

  However, when an interchangeable lens apparatus with a built-in image blur correction apparatus is connected to a digital camera with a built-in image blur correction apparatus, as in the camera system described in Patent Document 1, there are the following problems. Arise. For example, when the image blur correction function is not required, the image blur correction device provided in the digital camera body may operate even if the photographer does not operate the operation switch provided in the interchangeable lens device. . That is, the photographer is confused by an image blur correction operation that occurs contrary to the intention.

Further, two image blur correction devices provided in the interchangeable lens device and the digital camera body may operate simultaneously. In this case, camera shake correction different from that expected by the interchangeable lens device by operating the operation switch may be performed by the digital camera body. In other words, the blur correction intended by the photographer using the operation switch and the image blur correction results obtained by the two image blur correction apparatuses do not match, so the operability of the blur correction is poor for the photographer.
In view of such problems, the present invention provides a camera in which an image blur correction device is incorporated in both the camera body and the interchangeable lens device, in which the operability of the photographer is good and the operation switch and the image blur correction operation sense match. The purpose is to provide a system.

In order to achieve the above object, the first camera system of the present invention provides:
A camera system including a camera body that receives an optical image of a subject and captures the subject image, and an interchangeable lens device that has an imaging lens system that generates the optical image and is detachable from the camera body,
The interchangeable lens device is
An image blur correction lens unit that changes the configuration of the imaging lens system and corrects the movement of the optical image caused by the movement of the camera body;
An image blur correction lens unit controller for controlling the image blur correction lens unit;
A first operation unit for allowing a user to select an operation of the image blur correction lens unit control unit;
The camera body is
An imaging sensor that generates an image signal representing a subject image based on the optical image;
An image blur correction sensor unit that changes the position of the imaging sensor to correct the movement of the subject image caused by the movement of the camera body;
An image blur correction sensor unit controller for controlling the image blur correction sensor unit;
The operation of the image blur correction sensor unit control unit in the camera body is set by the operation of the first operation unit.

The second camera system of the present invention that achieves the above object is
A camera system including a camera body that receives an optical image of a subject and captures the subject image, and an interchangeable lens device that has an imaging lens system that generates the optical image and is detachable from the camera body,
The interchangeable lens device is
An image blur correction lens unit that changes the configuration of the imaging lens system and corrects the movement of the optical image caused by the movement of the camera body;
An image blur correction lens unit controller for controlling the image blur correction lens unit;
A first operation unit for allowing a user to select an operation of the image blur correction lens unit control unit;
The camera body is
An imaging sensor that generates an image signal representing a subject image based on the optical image;
An image blur correction sensor unit that changes the position of the imaging sensor to correct the movement of the subject image caused by the movement of the camera body;
An image blur correction sensor unit controller for controlling the image blur correction sensor unit;
A second operation unit for allowing a user to select an operation of the image blur correction sensor unit control unit,
Image blur correction unit selection means for allowing a user to select one of the image blur correction lens unit control unit and the image blur correction sensor unit control unit;
An image blur correction unit control unit selection unit that allows a user to select one of the first operation unit and the second operation unit;
The operation selected by the selected one of the first operation unit and the second operation unit is set in the image blur correction lens unit control unit or the image blur correction sensor unit control unit. It is.

  According to the present invention, there is provided a camera system in which the operability of the photographer is good and the operation switch matches the sense of operation even when the image blur correction device is incorporated in both the digital camera body and the interchangeable lens device. Can be provided.

  As described above, the present invention is applied to a camera system including a camera body and a lens unit each having an image blur correction function. In the present specification, a camera system configured as an example of a single-lens reflex digital camera and an interchangeable lens device as such a camera body and a lens unit is disclosed as an embodiment. However, the camera body according to the present invention is not limited to a single-lens reflex digital camera, the lens unit is not limited to an interchangeable lens device that can be detachably attached to the camera body, and the lens unit is a camera body. It can also be applied to a camera system that is fixedly attached to the camera.

(Embodiment 1)
The camera system according to the first embodiment of the present invention will be described below with reference to FIGS. 1, 2, 3, 4, 5, and 6. FIG. 1 shows the overall configuration of the camera system CS1, FIG. 2 shows the internal control system of the camera body DC1, FIG. 3 shows the control system of the interchangeable lens device IL, and FIG. 4 shows the image blur correction device of the camera body DC1. The configuration is shown.

  As shown in FIG. 1, the camera system CS1 includes a single-lens reflex digital camera body (hereinafter referred to as “camera body”) DC1 and an interchangeable lens device IL. The interchangeable lens device IL is detachably attached to a lens mount 110 provided on the front surface of the camera body DC1.

  The interchangeable lens device IL is broadly divided into a lens optical system OL that generates an optical image of the object to be photographed and a lens control system CL that controls various sequences of the interchangeable lens device IL. The lens optical system OL includes a focus lens group 251, a diaphragm unit 261, and an image blur correction lens unit 230. The lens control system CL is connected to the focus lens group 251, the aperture unit 261, the image blur correction lens unit 230, and the image blur correction mode setting switch 210 by lines L11, L12, L13, and L14, and the operation of the lens optical system OL. To generate an optical image.

  The image blur correction mode setting switch 210 supplies, to the lens control system CL, a signal indicating an image blur correction mode that the user desires (selects) for the interchangeable lens device IL based on a user operation. The image blur correction lens unit 230 includes a blur correction lens group 231, which drives the blur correction lens group 231 based on a blur correction instruction given from the lens control system CL via a line L 13, and is used by the lens optical system OL. It corrects blurring that occurs in the generated optical image. The lens control system CL will be described in detail later with reference to FIG.

  The camera body DC1 is roughly divided into a camera optical system OC that processes an optical image generated by the lens optical system OL of the interchangeable lens apparatus IL in a light state, and a camera control system CC. The camera optical system OC includes a quick return mirror 120, a finder screen 131, a pentaprism 132, an eyepiece lens 133, a finder eyepiece window 134, a shutter unit 152, and an image blur correction imaging sensor unit 170.

  In the camera optical system OC, the finder screen 131, the pentaprism 132, the eyepiece lens 133, and the finder eyepiece window 134 are static optics that allow incident light (images) to pass therethrough without mechanical or electrical operation. A finder optical system Os that is a system is configured. On the other hand, the quick return mirror 120, the shutter unit 152, and the image blur correction imaging sensor unit 170 constitute a dynamic optical system Od that mechanically or electrically acts on incident light (image).

  The image blur correction imaging sensor unit 170 includes an imaging sensor 151 that outputs an electrical signal based on an optical image. The camera body DC1 further includes a shutter button 181 that instructs the shutter unit 152 to be driven by a user operation, and a liquid crystal monitor 156 that displays an image based on an electrical signal generated by the imaging sensor 151.

  The camera control system CC includes a quick return mirror 120, a shutter unit 152, an image sensor 151, an image blur correction image sensor unit 170, and a shutter button 181 by lines L1, L2, L3, L4, L5, L6, L7, and L8, respectively. The liquid crystal monitor 156, the image blur correction operation selection switch 182, and the image blur correction mode setting switch 183 are connected. The image blur correction operation selection switch 182 is used to select whether or not to perform an image blur correction operation, to select an image blur correction unit to be used, and to select an operation mode setting switch to be used. The image blur correction mode setting switch 183 is used to select an image blur correction operation mode when the image blur correction operation is selected. As the image blur correction operation mode, there are a first mode in which an image blur correction operation is started when the shutter button 181 starts to be pressed and a second mode in which the image blur correction operation is performed only after the shutter button 181 has been pressed. is there.

  The image blur correction imaging sensor unit 170 includes an imaging sensor 151 that outputs an electrical signal (hereinafter referred to as “image signal”) based on an optical image, and an image blur correction instruction given from the camera control system CC via a line L4. Based on the above, the image sensor 151 is driven so as to cancel the movement of the optical image, and an image signal corrected for image blur is output from the image sensor 151.

  The camera control system CC will be described with reference to FIG. The camera control system CC includes a body microcomputer 140 that controls various sequences of the camera system CS1, a focus detection unit 121, a quick return mirror drive control unit 122, a shutter control unit 153, an image sensor control unit 154, an image display control unit 155, The shake detection unit 160, the shake correction image sensor unit control unit 171 and the image recording control unit 157 are directly connected, and the image reading / recording unit 158 is connected to the body microcomputer 140 via the image recording control unit 157. Yes. The body microcomputer 140 is a program for controlling various operations realized by the camera system CS1, or data on the shift amount from the optical axis center of the image sensor 151 according to the focal length of the interchangeable lens device IL used for image blur correction. Is stored in the memory unit 141. The focus detection unit 121 detects focus adjustment information of the interchangeable lens device IL for obtaining a subject image based on the subject light Lo2 reflected by the sub mirror 120b, and inputs the focus adjustment information to the body microcomputer 140.

  The quick return mirror drive control unit 122 is connected to the quick return mirror 120 via line L1, the shutter control unit 153 is connected to the shutter unit 152 via line L2, and the imaging sensor control unit 154 is connected to the imaging sensor 151 via line L3. The body microcomputer 140 is connected to the shutter button 181 via a line L5, the blur correction imaging sensor unit controller 171 is connected to the image blur correction imaging sensor unit 170 via a line L4, and the image display controller 155 is connected to the liquid crystal monitor 156 via a line L6. It is connected.

  Furthermore, the body microcomputer 140 is connected to the lens control system CL via the interface 185 (FIG. 1). The body microcomputer 140 controls various sequences of the camera system CS1 by outputting other information (signal) based on information (signal) input from each of these connected elements.

  Hereinafter, the operation of the camera system CS1 will be briefly described with reference to FIG. 1 and FIG. The subject light Lo that has passed through the interchangeable lens device IL, which is a lens barrel, enters the quick return mirror 120 of the camera body DC1. The quick return mirror 120 includes a main mirror 120a that transmits part of incident light and a sub mirror 120b that totally reflects incident light.

  At the time of non-photographing, the quick return mirror 120 is disposed on the optical path and the shutter unit 152 is closed. That is, the subject light Lo that has passed through the interchangeable lens device IL is converted into a light beam reflected by the main mirror 120a (hereinafter referred to as “reflected light beam”) Lo1 and a light beam transmitted through the main mirror 4a (hereinafter referred to as “transmitted light beam”) Lo2. Divided. The reflected light beam Lo1 is guided to the finder optical system Os and imaged on the finder screen 131. The subject image formed on the finder screen 131 can be observed from the finder eyepiece window 134 via the pentaprism 132 and the eyepiece lens 133.

  The transmitted light beam Lo2 is reflected by the sub mirror 120b provided on the back side of the main mirror 120a, and is used as an AF light beam by the focus detection unit 121 of the camera control system CC. Note that the focus detection unit 121 generally performs focus detection based on a phase difference detection method.

  On the other hand, during normal shooting, the quick return mirror 120 is flipped up to the outside of the optical path X by the quick return mirror drive control unit 122 of the camera control system CC in conjunction with the operation of the shutter button 181 and the shutter unit 152 is be opened. That is, the transmitted light beam Lo2 is imaged as a subject image on the imaging surface of the imaging sensor 151 without being reflected by the sub mirror 4b.

  The shutter control unit 153 performs drive control of a shutter drive motor (not shown) that opens and closes the shutter unit 152. The image sensor control unit 154 performs drive control of the image sensor 151. The image display control unit 155 reads data of a subject image formed by the image sensor 151 (hereinafter referred to as “captured image data”) Di, and displays a captured image on the image display liquid crystal monitor 156 after predetermined image processing. Control as follows.

  Further, the image recording control unit 157 reads / writes captured image data from / to a recording medium (not shown) such as an SD card via the image reading / recording unit 158. The quick return mirror drive control unit 122 performs drive control of a quick return mirror drive motor (not shown) that moves the main mirror 120a and the sub mirror 120b based on a control signal from the body microcomputer 141.

  The blur detection unit 160 detects the amount of image blur based on the amount of movement of the camera system CS1 detected by an angular velocity sensor or the like, and notifies the body microcomputer 140 of it. The shake correction image sensor unit controller 171 drives the image blur correction image sensor unit 170 to move the image sensor 151 up, down, left, and right within a plane orthogonal to the optical axis X based on a control signal input from the body microcomputer 140. Take control. Image blur correction in the camera body DC1 suppresses the influence of camera shake or the like of a photographer or the like by shifting the position of the imaging sensor 151 with respect to the captured image so that the amount of image blur detected by the blur detection unit 160 is small. Thus, a good captured image can be obtained. Note that the shake detection unit 160 and the shake correction imaging sensor unit control unit 171 together with the body microcomputer 140 form an imaging sensor image blur correction feedback control loop mechanism 190 for driving and controlling the imaging sensor 151.

  The image sensor blur correction feedback control loop mechanism 190 will be described with reference to FIG. The shake detection unit 160 includes an angular velocity sensor 161, an HPF 162, an LPF 163, an amplifier 164, and an A / D conversion unit 165. The angular velocity sensor 161 detects the movement of the digital camera DC1 (camera system CS1) due to camera shake and other vibrations and outputs an electrical signal. Specifically, the angular velocity sensor 161 is a sensor that detects movement in two directions orthogonal to the optical axis (two directions of yawing and pitching), and a total of two angular velocity sensors 161 are provided for each detection direction (see FIG. 3). Only one).

  The HPF 162 removes the DC drift component in the unnecessary band component included in the electrical signal output from the angular velocity sensor 161 and outputs the result. The LPF 163 removes the resonance frequency component and noise component of the sensor from unnecessary band components included in the electrical signal output from the angular velocity sensor 161 and outputs the result. The amplifier 164 adjusts the electrical signal output from the LPF 163, that is, the output signal level of the angular velocity sensor 161, and outputs the adjusted signal. The A / D converter 165 converts the output signal of the amplifier 164 into a digital signal and supplies it to the body microcomputer 140. Note that the shake detection unit 160 outputs both positive and negative angular velocity signals depending on the direction of movement of the digital camera DC1, based on the output when the digital camera DC1 is stationary.

  The body microcomputer 140 performs filtering, integration processing, phase compensation, gain adjustment, clip processing, and the like on the output signal of the angular velocity sensor 161 captured via the A / D conversion unit 165, and performs camera body DC1 (camera system CS1). ) To obtain the drive control amount in the yawing and pitching directions of the image sensor 151 necessary for the motion correction of the image sensor 151 and generate the image sensor drive signal instruction signal Smi. The imaging sensor drive signal instruction signal Smi is supplied to the shake correction imaging sensor unit controller 171.

  The blur correction imaging sensor unit control unit 171 includes a D / A conversion unit 173, an image blur correction imaging sensor unit control unit 172, and a movement amount detection unit 174. The movement amount detection unit 174 detects the movement amount of the imaging sensor 151 in two directions via the line L4 and generates a sensor movement amount signal Sms. The image blur correction imaging sensor unit control unit 172 generates an imaging sensor driving signal Smc for moving the imaging sensor 151 in two directions based on the imaging sensor driving signal instruction signal Smi and the sensor movement amount signal Sms, and displays the line L4. To the image blur correction imaging sensor unit 170. The image blur correction imaging sensor unit 170 drives and controls the imaging sensor 151 based on the imaging sensor drive signal Smc. In this way, in the imaging sensor image blur correction feedback control loop mechanism 190, the blur correction imaging sensor unit controller 171 moves the movement amount of the digital camera DC1 (Cs) detected by the blur detection unit 160 (imaging sensor drive signal instruction signal). Based on (Sm), the movement amount (sensor movement amount signal Sms) of the image sensor 151 is corrected (image sensor driving signal Smc).

As described above, the memory unit 141 of the body microcomputer 140 stores shift amount data from the center of the optical axis of the image sensor 151 corresponding to the focal length of the interchangeable lens device IL used for image blur correction. In general, the correction range of image blur correction using the image sensor 151 has a certain relationship with the focal length of the attached interchangeable lens device IL. That is, if the focal length of the interchangeable lens device IL is f and the angle at which the digital camera DC1 is shaken within a predetermined time (within the exposure time) by vibration is θ, the amount of image movement on the image sensor 151 (hereinafter referred to as “sensor” The “upward movement amount”) ΔY is expressed by the following equation (1).
ΔY = f × tan θ (1)

  Therefore, at the time of image blur correction, the image sensor 151 is driven in a direction opposite to the direction in which the camera body DC1 moves to cancel the on-sensor movement amount ΔY, thereby correcting the image blur due to the movement of the camera body DC1. Is possible. Note that the maximum correction angle θ that can correct the image blur due to the movement of the camera body DC1 is determined by each digital camera DC1, and information about the maximum correctable angle θ is stored in the memory unit 141. The memory unit 141 further stores data such as the date of manufacture of the main body of the digital camera DC1 or power consumption necessary for driving the image sensor 151 at the time of image blur correction.

  Next, the lens control system CL of the interchangeable lens device IL will be described with reference to FIG. In the lens control system CL, an image blur detection unit 220, a focus lens group control unit 252, an aperture control unit 262, and an image blur correction lens unit control unit 240 are connected to a lens microcomputer 200 that controls various sequences of the interchangeable lens device IL. Configured. The body microcomputer 20 is a program for controlling various operations realized by the interchangeable lens device IL, or data of shift amounts from the center of the optical axis of the image sensor 151 according to the focal length of the interchangeable lens device IL used for image blur correction. The memory unit 201 is stored.

  The focus lens group control unit 252 is connected to the focus lens group 251 through a line L11, the aperture control unit 262 is connected to the aperture unit 261 through a line L12, and the image blur correction lens unit control unit 240 is connected to the blur correction lens group 231 through a line L13. It is connected to the. The image blur detection unit 220 detects the blur amount of the interchangeable lens device IL (camera system CS1) using an angular velocity sensor or the like, and notifies the lens microcomputer 200 of it. The focus lens group control unit 252, the aperture control unit 262, and the image blur correction lens unit control unit 240 are respectively a focus lens group 251 based on a control signal input from the lens microcomputer 200. The diaphragm unit 261 and the image blur correction lens unit 230 are controlled.

  Further, the lens microcomputer 200 is connected to the camera control system CC of the camera body DC1 via the interface 185. The lens microcomputer 200 controls various sequences of the interchangeable lens device IL by outputting different information (signal) based on information (signal) input from each of these connected elements.

  Next, an image blur correction operation in the interchangeable lens device IL will be described. Image blur correction in the interchangeable lens device IL is performed by the image blur correction lens unit controller 240 moving the blur correction lens group 231 vertically and horizontally within a plane orthogonal to the optical axis of the lens optical system OL. It is realized by letting. By controlling the movement of the camera shake correction lens group 231, it is possible to eliminate the influence of camera shake or the like of the photographer and obtain a good captured image.

  The image blur detection unit 220 detects the amount of image blur based on the amount of movement of the interchangeable lens device IL (camera system CS1) detected by an angular velocity sensor or the like, and notifies the lens microcomputer 200 of it. The image blur correction lens unit control unit 240 moves the blur correction lens group 231 vertically and horizontally within a plane orthogonal to the optical axis X based on a control signal input from the lens microcomputer 200. Drive control is performed. Image blur correction in the interchangeable lens apparatus IL is performed by shifting the position of the blur correction lens group 231 with respect to the optical axis X so that the amount of image blur detected by the image blur detection unit 220 is small. It is possible to obtain a good captured image by suppressing the influence of camera shake or the like. The image blur detection unit 220 and the image blur correction lens unit control unit 240, together with the lens microcomputer 200, include a lens image blur correction feedback control loop mechanism 270 that executes a feedback control loop for driving and controlling the blur correction lens group 231. Forming.

  The image blur detection unit 220 and the image blur correction lens unit controller 240 described with reference to FIG. 5 for the lens image blur correction feedback control loop mechanism 270 are respectively the imaging sensor image blur correction feedback control loop shown in FIG. The mechanism 190 is configured in the same manner as the shake detection unit 160 and the shake correction imaging sensor unit control unit 171 in the mechanism 190. In other words, the image blur detection unit 220 includes an angular velocity sensor 221, an HPF 222, an LPF 223, an amplifier 224, and an A / D conversion unit 225. The angular velocity sensor 221 detects movement in two directions (two directions of yawing and pitching) perpendicular to the optical axis of the interchangeable lens device IL (camera system CS1) due to camera shake and other vibrations, and outputs an electrical signal.

  The HPF 222 removes and outputs a DC drift component in the unnecessary band component included in the electrical signal output from the angular velocity sensor 221. The LPF 223 removes the resonance frequency component and noise component of the sensor from unnecessary band components included in the electrical signal output from the angular velocity sensor 221 and outputs the result. The amplifier 224 adjusts the electrical signal output from the LPF 223, that is, the output signal level of the angular velocity sensor 221 and outputs the adjusted signal. The A / D converter 225 converts the output signal of the amplifier 224 into a digital signal and supplies it to the lens microcomputer 200. The image blur detection unit 220 uses both positive and negative angular velocity signals depending on the direction of movement of the interchangeable lens device IL (camera system CS1) with reference to the output when the interchangeable lens device IL (camera system CS1) is stationary. Is output.

  The lens microcomputer 200 performs filtering, integration processing, phase compensation, gain adjustment, clip processing, and the like on the output signal of the angular velocity sensor 221 taken in via the A / D conversion unit 225, thereby obtaining an interchangeable lens device IL (camera system). A shake correction lens drive signal instruction signal SMLi is generated by obtaining a drive control amount in the yawing and pitching directions of the shake correction lens group 231 necessary for motion correction of CS1). The blur correction lens drive signal instruction signal SMLi is supplied to the image blur correction lens unit controller 240.

The image blur correction lens unit control unit 240 includes a D / A conversion unit 242, an image blur correction lens unit control unit 241, and a movement amount detection unit 243. The movement amount detector 243 detects the movement amount of the blur correction lens group 231 in two directions via the line L13 and generates a lens movement amount signal SMLL. The image blur correction lens unit controller 241 generates a lens drive signal SmLc for moving the blur correction lens group 231 in two directions based on the blur correction lens drive signal instruction signal SMLi and the lens movement amount signal SMLL, and generates a line L13. To the image blur correction lens unit 230. The image blur correction lens unit 230 drives and controls the blur correction lens group 231 based on the lens drive signal SmLc. In this way, the image blur correction lens unit 230 moves the movement amount of the blur correction lens group 231 based on the movement amount (lens movement amount signal SMLL) of the interchangeable lens device IL (Cs) detected by the image blur detection unit 220. (Blur correction lens drive signal instruction signal SMLi) is corrected (lens drive signal SmLc).
In the memory unit 201 of the lens microcomputer 200, various programs for each interchangeable lens device IL, data indicating the relationship between the focal length and the distance to the subject, and the amount of movement of the focus lens group 251 and the focal length are displayed. Data of the shift amount from the center of the optical axis of the blur correction lens group 231 is stored. Regarding the shift amount of the blur correction lens group 231, information on the maximum correctable angle θ that can be corrected by the interchangeable lens device IL is stored based on the image movement amount ΔY expressed by the above-described equation (1). .
Further, the memory unit 201 also stores data such as the date of manufacture of the interchangeable lens device IL or the power consumption necessary for driving the image blur correction lens group 231 at the time of image blur correction.

  Next, with reference to FIG. 1, FIG. 2, and FIG. 4, a driving sequence in the case where a shadow person or the like takes a picture while looking through the finder eyepiece window 134 of the camera body DC1 will be described. When the photographer or the like presses the shutter button 181 halfway, power is supplied to the body microcomputer 140 and various units of the digital camera DC1. The body microcomputer 140 of the digital camera DC1 that is activated by supplying power supplies the lens data together with the lens data from the lens microcomputer 200 of the interchangeable lens device IL that is also activated by supplying power through an electrical section (not shown) of the lens mount 110. Information regarding whether or not the interchangeable lens device IL is mounted with the image blur correction lens unit 230 is also received. These pieces of information are stored in the memory unit 141 of the body microcomputer 140.

  Next, the body microcomputer 140 acquires a defocus amount (hereinafter referred to as “Df amount”) from the focus detection unit 121 and instructs the lens microcomputer 200 to drive the focus lens group 251 by the Df amount. . The lens microcomputer 200 controls the focus lens group control unit 252 to operate the focus lens group 251 by the amount of Df. As described above, as the focus detection by the camera control system CC (camera body DC1) and the driving of the focus lens group 251 by the lens control system CL (interchangeable lens device IL) are repeated, the Df amount decreases and becomes a predetermined amount or less. At times, the body microcomputer 140 determines that the focus is in focus and stops driving the focus lens group 251.

  After that, the body microcomputer 140 instructs the lens microcomputer 200 to set the aperture value calculated based on the output from the photometric sensor (not shown) by fully pressing the shutter button 181. Then, the lens microcomputer 200 controls the aperture controller 262 to narrow the aperture to the instructed aperture value. The body microcomputer 140 retracts the quick return mirror 120 from the optical path X by the quick return mirror drive control unit 122 simultaneously with the aperture value instruction. After completion of retracting the quick return mirror 120, the body microcomputer 140 causes the image sensor control unit 154 to drive the image sensor 151 and causes the shutter control unit 153 to operate the shutter unit 152. The body microcomputer 140 causes the imaging sensor control unit 154 to expose the imaging sensor 151 for the shutter speed time calculated based on the output from the photometric sensor.

  After the exposure of the image sensor 151 is completed, the body microcomputer 140 causes the image sensor control unit 154 to read image data from the image sensor 151 via the line L3. Then, the body microcomputer 140 performs predetermined image processing on the read image data, and then outputs the image data via the line L6 to display the photographed image on the liquid crystal monitor 156. Further, the body microcomputer 140 writes image data to a storage medium (not shown) via the image reading / recording unit 158, and after the exposure of the image sensor 151, the body microcomputer 140 sends it to the quick return mirror drive control unit 122 and the shutter control unit 153. The quick return mirror 120 and the shutter unit 152 are reset to the initial positions.

  The body microcomputer 140 instructs the lens microcomputer 200 to reset the aperture to the open position. The lens microcomputer 200 issues a reset command to the lens optical system OL. After completion of the reset of the lens optical system OL, the lens microcomputer 200 notifies the body microcomputer 140 of the completion of reset. The body microcomputer 140 waits for the reset completion notification from the lens microcomputer 200 and the completion of the series of processes after exposure, confirms that the shutter button 181 has not been pressed, and ends the photographing sequence.

  Next, with reference to FIG. 6, a specific operation of image blur correction unit selection in the camera system CS1 according to the present embodiment will be described. Note that the camera system CS1 in the present embodiment is configured to operate the image blur correction imaging sensor unit 170 of the camera body DC1 with the image blur correction mode setting switch 210 of the interchangeable lens device IL.

  After the power of the camera body DC1 is turned on, in step S1, the body microcomputer 140 determines whether or not the interchangeable lens device IL is attached. Specifically, the body microcomputer 140 makes an inquiry to the lens microcomputer 200 and determines whether or not the interchangeable lens device IL is attached based on whether or not there is a response from the lens microcomputer 200. When it is determined that the interchangeable lens device IL is attached, the control proceeds to step S2.

  In step S <b> 2, the body microcomputer 140 acquires information regarding various lenses of the interchangeable lens device IL from 021 of the lens microcomputer 200. Specifically, the body microcomputer 140 transmits a command to the lens microcomputer 200. In response to this command, the lens microcomputer 200 reads information on various lenses from the memory unit 201 and transmits it to the body microcomputer 140. The information related to various lenses includes information related to the image blur correction lens unit 230 in addition to the information related to each lens constituting the focus lens group 251. Then, control proceeds to the next step S3.

  In step S3, the body microcomputer 140 inquires of the photographer whether or not to perform an image blur correction operation as the camera system CS1. Specifically, a message prompting selection such as “select image blur correction operation?” Is displayed on the screen of the liquid crystal monitor 156. For example, the photographer operates the image blur correction operation selection switch 182 provided in the camera body DC1 and inputs whether or not the image blur correction operation is possible. Then, control proceeds to the next step S4.

  In step S4, whether or not the shake correction operation is possible is determined based on the response input to the message in step S3. If it is determined that functioning of the image blur correction operation is selected as the camera system CS1, the control proceeds to step 5.

  In step S <b> 5, the body microcomputer 140 transmits a command that instructs the lens microcomputer 200 to stop the operation of the image blur correction lens unit 230. The lens microcomputer 200 causes the image blur correction lens unit control unit 240 to stop the operation of the image blur correction lens unit 230 in accordance with a command from the body microcomputer 140. Then, the control proceeds to the next Step S6. As a method of stopping the operation of the image blur correction lens unit 230, there is a method of passing an electric current through the actuator so that the blur correction lens group 231 is coaxial with the optical axis X, or a method of mechanically locking. is there.

  In step S6, the body microcomputer 140 confirms an image blur correction operation mode. Specifically, the body microcomputer 140 transmits a command requesting the lens microcomputer 200 to transmit information regarding the setting state of the image blur correction mode setting switch 210. The lens microcomputer 200 transfers the image blur correction mode setting information selected by the photographer by operating the image blur correction mode setting switch 210 to the body microcomputer 140 via the line L14. Based on the transferred information, the body microcomputer 140 confirms the image blur correction mode desired by the photographer with respect to the camera system CS1, and gives an instruction to the blur correction image sensor unit control unit 171 so that the operation mode can be executed. . Then, the control proceeds to the next Step S7.

  In step S7, the body microcomputer 140 drives the image blur correction imaging sensor unit 170 of the camera body DC1 in the image blur correction mode confirmed in step S6. Thereafter, the camera system CS1 is held in a shootable state with the image blur correction function of the camera body DC1 activated. The operation of the image blur correction imaging sensor unit 170 is as described in detail with reference to FIG. 1, FIG. 2, and FIG.

  On the other hand, if it is determined in step S4 that the image blur correction operation for the camera system CS1 is not selected, the body microcomputer 140 stops the operation of the image blur correction imaging sensor unit 170 of the camera body DC1 in step S8. Specifically, the body microcomputer 140 instructs the shake correction image sensor unit control unit 171 to stop the operation of the image blur correction image sensor unit 170. Then, the control proceeds to the next Step S9.

  In step S <b> 9, the body microcomputer 140 transmits a command to the lens microcomputer 200 to stop the operation of the image blur correction lens unit 230. Thereafter, the camera system CS1 is ready to take a picture without performing image blur correction.

  In the present invention, the reason why the image blur correction operation mode setting of the camera system CS1 in step S6 is performed based on the information of the image blur correction mode setting switch 210 transferred from the lens microcomputer 200 will be described. Conventionally, when an image blur correction mode setting switch 183 corresponding to the image blur correction imaging sensor unit 170 is provided and shooting is performed with the camera main body DC1, the photographer uses the image blur correction mode setting switch 183 to perform the camera main body. The image blur correction operation mode of DC1 is set. However, it is considered that users of the camera system CS1, particularly a single-lens reflex digital camera, to which the present invention is directed, have many transfer groups from single-lens reflex cameras using film. In a film type single-lens reflex camera, an image blur correction unit is built in the interchangeable lens apparatus, and a mode setting switch is also provided on the outer periphery of the interchangeable lens apparatus.

  That is, a user who is familiar with the operation of the film type single-lens reflex camera sets the image blur correction mode of the camera system provided with the image blur correction function in both the interchangeable lens device and the camera main body, and sets the camera main body DC1. It is a familiar operation to set the image blur correction operation mode using the mode setting switch provided in the interchangeable lens apparatus rather than the provided mode setting switch. Therefore, in this embodiment, the image blur correction mode setting switch 210 provided in the interchangeable lens device IL is used for setting the operation mode.

  Even when image blur correction is performed using the image blur correction unit built in the camera body DC1, the film is corrected by using the image blur correction mode setting switch 210 provided in the interchangeable lens device IL. A photographer who is familiar with the operation of a single-lens reflex camera can operate the camera without feeling uncomfortable. As a result, it is possible to achieve good operability for the photographer.

(Embodiment 2)
A camera system according to Embodiment 2 of the present invention will be described with reference to FIGS. In the camera system CS1 according to the first embodiment, the image blur correction imaging sensor unit 170 (blur correction imaging sensor unit controller 171) of the camera body DC1 can be operated by the image blur correction mode setting switch 210 of the interchangeable lens device IL. It is structured on the premise. Depending on the photographer, any one of the interchangeable lens device IL and the image blur correction lens unit 230 and the image blur correction imaging sensor unit 170 of the camera body DC1 may be replaced with the image blur correction mode setting switch 210 of the interchangeable lens device IL and the camera body DC1. It may be preferred to operate at any of 183.

  In the camera system CS2 according to the present embodiment, according to the combination of the image blur correction lens unit 230 and the image blur correction imaging sensor unit 170 and the image blur correction mode setting switches 210 and 183 of the interchangeable lens device IL and the camera body DC1. The image blur correction operation is performed. This is due to the difference in the image blur correction operation control program stored in the memory unit 141 of the body microcomputer 140. Therefore, in order to avoid redundant description, description of the configuration of the camera system CS2 will be omitted, and the image blur correction operation will be described with emphasis.

  First, FIG. 7 shows a combination example of the image blur correction imaging sensor unit 170 and the blur correction lens unit controller 240 used and the image blur correction mode setting switches 183 and 210 to be used. In the figure, “◯” indicates that the operation is performed, and “X” indicates that the operation is not performed. The combination of the image blur correction unit (170 and 230) and the blur correction mode setting switch (183 and 210) is No. 1, no. 2, no. 3 and no. Four cases shown as 4 are conceivable. For example, no. In the case of 1, the image blur correction imaging sensor unit 170 of the camera body DC1 and the image blur correction mode setting switch 210 of the interchangeable lens device IL are operated. That is, no. The combination shown in 1 corresponds to the camera system CS1 according to the first embodiment.

  No. The combination shown in 2 is a case that is normally performed in a conventional single-lens reflex digital camera in which the image blur correction imaging sensor unit 170 of the camera body DC1 is operated by the image blur correction mode setting switch 183 of the camera body DC1. . No. In the combination shown in FIG. 3, the image blur correction lens unit 230 of the interchangeable lens apparatus IL is operated by the image blur correction mode setting switch 210 of the interchangeable lens apparatus IL. This is the case that is usually done with a conventional single-lens reflex camera. No. The combination shown in 4 is a case where the image blur correction lens unit 230 of the interchangeable lens device IL is operated by the image blur correction mode setting switch 183 of the camera body DC1.

  Depending on the type of subject, it may be better to specify the image blur correction unit. Further, considering the photographer's preference for the mode setting switch to be used, No. 1 in one camera system. 1-No. It is preferable that all combinations of 4 can be realized.

  The image blur correction operation in the camera system CS2 will be described with reference to the flowchart in FIG. Although omitted in FIG. 8 due to space limitations, the processing in step S12 is executed following the selection of the image blur correction operation by the photographer in the processing in steps S1 to S4 (FIG. 6) described above. .

  In step S12, the body microcomputer 140 inquires of the photographer about the image blur correction unit to be used. Specifically, an inquiry as to whether to use the image blur correction imaging sensor unit 170 of the camera body DC1 or the image blur correction lens unit 230 of the interchangeable lens device IL is displayed on the liquid crystal monitor 156, and the photographer Encourage selection response. Then, the control proceeds to the next Step S14.

  If it is determined in step S14 that the image blur correction imaging sensor unit 170 of the camera body DC1 has been selected, the control proceeds to the next step S16.

  In step S16, the body microcomputer 140 sends a command to the lens microcomputer 200, and stops the operation of the image blur correction lens unit 230 of the interchangeable lens device IL. Then, the control proceeds to the next Step S18.

  In step S18, the body microcomputer 140 issues a message asking which of the image blur correction mode setting switch 183 provided in the camera body DC1 and the image blur correction mode setting switch 210 provided in the interchangeable lens device IL is to be used. The information is displayed on the liquid crystal monitor 156 to prompt the photographer to input a response. Then, the control proceeds to the next Step S20.

  If it is determined in step S20 that the image blur correction mode setting switch 183 of the camera body DC1 has been selected, the control proceeds to step S22.

  In step S22, the body microcomputer 140 disables the image blur correction mode setting switch 210 of the interchangeable lens device IL determined not to be selected in step S20. Then, the control proceeds to the next Step S24.

  In step S24, the body microcomputer 140 drives the image blur correction imaging sensor unit 170 built in the camera main body DC1 in a state where the input from the image blur correction mode setting switch 183 is received. The processes in steps S16 and S22 described above are the same as those in No. 5 of FIG. 2 combinations are supported.

  On the other hand, if it is determined in step S20 that the image blur correction mode setting switch 210 of the interchangeable lens apparatus IL has been selected, the control proceeds to step S26. In step S26. The body microcomputer 140 disables the image blur correction mode setting switch 183 of the camera body DC1 that is determined not to be selected in step S20, as in step S22. Then, the control proceeds to the next Step S28.

  In step S28, the body microcomputer 140 drives the image blur correction imaging sensor unit 170 of the camera main body DC1 in a state in which the input from the image blur correction mode setting switch 210 is received as in step S24. The processes in steps S16 and S26 described above are the same as those in No. 1 of FIG. 1 combination is supported.

  If it is determined in step S14 described above that the image blur correction mode setting switch 210 of the interchangeable lens apparatus IL is selected, the control proceeds to step S30. In step S30, the body microcomputer 140 stops the image blur correction imaging sensor unit 170 of the camera body DC1 as in step S16. Then, the control proceeds to the next Step S32.

  In step S32, the body microcomputer 140 displays on the liquid crystal monitor 156 a message asking which one of the image blur correction mode setting switch 183 and the image blur correction mode setting switch 210 is used, as in step S18. Prompt for a response. Then, the control proceeds to the next Step S34.

  Next, when it is determined in step S34 that the image blur correction mode setting switch 183 of the camera body DC1 has been selected, the control proceeds to step S36. On the other hand, if it is determined that the image blur correction mode setting switch 210 of the interchangeable lens device IL is selected, the control proceeds to step S40.

  In step S36, the body microcomputer 140 invalidates the image blur correction mode setting switch 210 of the interchangeable lens device IL determined not to be selected in step S34, as in step S22. Then, the control proceeds to the next Step S38.

  In step S38, the body microcomputer 140 drives the image blur correction lens unit 230 in a state where the input from the image blur correction mode setting switch 183 is received. The processes in steps S30 and S36 described above are the same as those of No. 4 combinations are supported.

  In step S40, the body microcomputer 140 disables the image blur correction mode setting switch 183 of the camera body DC1 in the same manner as in step S26. Then, the control proceeds to the next Step S42.

  In step S42, as in step S38, the image blur correction lens unit 230 of the interchangeable lens device IL is driven while receiving an input from the image blur correction mode setting switch 210. The processes in steps S30 and S40 described above are the same as those in No. 1 of FIG. 3 combinations are supported.

  As described above, according to the present embodiment, the photographer sets the image blur correction device built in the camera body DC1 and the interchangeable lens device IL, and the mode setting switch provided in the camera body DC1 and the interchangeable lens device IL. Can be used in combination. As a result, it is possible to provide a camera system that realizes good image blur correction according to the type of subject and the preference of the photographer.

  Note that the selection of the image blur correction unit between the interchangeable lens device and the digital camera body is not limited to the method described in this embodiment. For example, the interchangeable lens device and the digital camera main body may be configured to automatically select the larger one of the maximum correctable angles θ stored in the respective microcomputers.

  Further, the selection may be made automatically according to the type of the focal length of the interchangeable lens device or the size of the effective image circle on the image sensor. Further, it may be automatically selected according to a shooting scene such as night scene shooting. Further, the newer system may be preferentially selected according to the date of manufacture.

  In addition, the image blur correction unit with the smaller power consumption may be automatically selected. Alternatively, the image blur correction unit may be automatically selected according to a shooting mode that always uses the image blur correction unit or operates only when the shutter button is pressed. In order to increase the maximum correctable angle θ, the image blur correction units of both the interchangeable lens device and the digital camera main body may be used simultaneously.

  Further, when the shake detection unit such as an angular velocity sensor is mounted only on one of the interchangeable lens device and the digital camera body, either one may be automatically used. In addition, when it is mounted on both of them, it may be automatically selected or the photographer can freely select it. Further, a newer one or a higher detection sensitivity may be automatically selected according to information such as the date of manufacture of the angular velocity sensor.

(Embodiment 3)
FIG. 9 shows a configuration of a camera system according to the third embodiment of the present invention. In the camera system CS3 according to the present embodiment, the camera body DC1 is replaced with a camera body DC3 in the camera system CS1 shown in FIG. In the camera body DC3, the quick return mirror 120, the finder screen 131, the pentaprism 132, and the eyepiece 133 are deleted from the camera optical system OC of the camera body DC1. As a result, in the camera body DC3, the finder optical system Os does not exist, and the dynamic optical system Od is replaced with a dynamic optical system Od3 configured by the shutter unit 152 and the image blur correction imaging sensor unit 170 (imaging sensor 151). Has been. In response to a change in the camera optical system OC, the camera control system CC is also replaced with a camera control system CC3.

  As shown in FIG. 10, in the camera control system CC3, the focus detection unit 121 and the quick return mirror drive control unit 122 are removed from the camera control system CC. Note that the shutter unit 152 of the dynamic optical system Od3 is normally open, and the subject light Lo formed by the interchangeable lens device IL reaches the image sensor 151 directly. The imaging sensor 151 generates an image signal of the subject based on the subject light Lo, and the captured image is displayed on the liquid crystal monitor 156 via the camera control system CC3. The camera body DC1 is configured as a digital single-lens reflex camera, whereas the camera body DC3 is configured as a digital camera.

  In the above-described camera main body DC1, the photographer performs photographing while observing the subject image formed on the finder screen 131 from the finder eyepiece window 134. In the camera body DC3, the photographer takes a picture while viewing the subject image displayed on the liquid crystal monitor 156.

  Even when an image blur correction operation is performed in the camera system CS1 (camera main body DC1), the photographer views the subject as an image formed on the finder screen 131. In this case, since the photographer's line of sight moves in substantially the same manner as the camera system CS1, the photographer cannot recognize the difference in movement by comparing the subject with the camera system CS1. Therefore, it is difficult for the photographer to realize the image blur correction effect by the camera system CS1 during photographing.

  On the other hand, in the camera system CS3 (camera body DC3), the subject image is viewed on the liquid crystal panel 171. In this case, shooting can be recognized by comparing the camera system CS3 (camera body DC3) with the subject. Therefore, the photographer can easily feel the image blur correction effect by the camera system CS1 during photographing.

  Although the single-lens reflex digital camera or the digital camera has been described as an example as Embodiments 1, 2, and 3, the present invention is not limited to these single-lens reflex digital cameras and ordinary digital cameras. The present invention can be widely applied to a camera system that includes a camera body and an interchangeable lens device having image blur correction functions.

  The interchangeable lens device of the present invention is suitable for a digital still camera, a digital video camera, a mobile phone terminal with a camera function, a PDA, and the like that require compatibility with the digital camera body.

1 is a block diagram showing a configuration of a camera system according to a first embodiment of the present invention. Block diagram showing the configuration of the camera control system of FIG. The block diagram which shows the structure of the imaging sensor image blurring correction feedback control loop mechanism of FIG. Block diagram showing the configuration of the lens control system of FIG. FIG. 4 is a block diagram showing the configuration of the lens image blur correction feedback control loop mechanism of FIG. The flowchart showing the image blur correction unit selection operation in the camera system of FIG. The figure showing the combination of the image blur correction unit and the image blur correction mode setting switch which can be selected in the camera system concerning Embodiment 2 of this invention. 10 is a flowchart showing an image blur correction unit selection operation in the camera system according to the second embodiment of the present invention. FIG. 3 is a block diagram showing a configuration of a camera system according to a third embodiment of the present invention. The block diagram which shows the structure of camera control system CC3 of FIG.

Explanation of symbols

CS1, CS3 Camera system DC1, DC3 Camera body IL Interchangeable lens device 110 Lens mount 121 Focus detection unit 122 Quick return mirror drive control unit 131 Viewfinder screen 132 Pentaprism 133 Eyepiece 134 Viewfinder eyepiece window 140 Body microcomputer 151 Image sensor 152 Shutter unit 153 Shutter control unit 154 Image sensor control unit 155 Image display control unit 156 Liquid crystal monitor 160 Shake detection unit 171 Shake correction image sensor unit control unit 181 Shutter button 182 Image blur correction operation selection switch 183 Image blur correction mode setting switch 185 Interface 190 Imaging Sensor image blur correction feedback control loop mechanism 200 Lens microcomputer 210 Image blur correction mode setting switch 20 image blur detection unit 230 image blur correction lens unit 240 image blur correction lens unit control section 251 focus lenses 252 focus lens group controller 261 stop unit 262 aperture controller 270 lens image blur correction feedback control loop mechanism

Claims (7)

A camera system including a camera body that receives an optical image of a subject and captures the subject image, and an interchangeable lens device that has an imaging lens system that generates the optical image and is detachable from the camera body,
The interchangeable lens device is
An image blur correction lens unit that changes the configuration of the imaging lens system and corrects the movement of the optical image caused by the movement of the camera body;
An image blur correction lens unit controller for controlling the image blur correction lens unit;
A first operation unit for allowing a user to select an operation of the image blur correction lens unit control unit;
The camera body is
An imaging sensor that generates an image signal representing a subject image based on the optical image;
An image blur correction sensor unit that changes the position of the imaging sensor to correct the movement of the subject image caused by the movement of the camera body;
An image blur correction sensor unit controller for controlling the image blur correction sensor unit;
The camera system which sets operation | movement of the image blurring correction sensor unit control part in the said camera main body by operation of a said 1st operation part. The camera body further includes a second operation unit for allowing a user to select an operation of the image blur correction sensor unit control unit,
The operation of the image blur correction sensor unit control unit is set by the first operation unit when the first operation unit is operated regardless of the operation of the second operation unit. Camera system. The camera body further includes a second operation unit for allowing a user to select an operation of the image blur correction sensor unit control unit,
The operation of the image blur correction sensor unit control unit is set by the second operation unit when the second operation unit is operated regardless of the operation of the first operation unit. Camera system. The camera body further includes a second operation unit for allowing a user to select an operation of the image blur correction sensor unit control unit,
2. The camera according to claim 1, wherein when the first operation unit is operated, the operation of the shake correction lens unit control unit is set by the first operation unit regardless of the operation of the second operation unit. system. The camera body further includes a second operation unit for allowing a user to select an operation of the image blur correction sensor unit control unit,
2. The camera according to claim 1, wherein when the second operation unit is operated, the operation of the shake correction lens unit control unit is set by the second operation unit regardless of the operation of the first operation unit. system. A camera system including a camera body that receives an optical image of a subject and captures the subject image, and an interchangeable lens device that has an imaging lens system that generates the optical image and is detachable from the camera body,
The interchangeable lens device is
An image blur correction lens unit that changes the configuration of the imaging lens system and corrects the movement of the optical image caused by the movement of the camera body;
An image blur correction lens unit controller for controlling the image blur correction lens unit;
A first operation unit for allowing a user to select an operation of the image blur correction lens unit control unit;
The camera body is
An imaging sensor that generates an image signal representing a subject image based on the optical image;
An image blur correction sensor unit that changes the position of the imaging sensor to correct the movement of the subject image caused by the movement of the camera body;
An image blur correction sensor unit controller for controlling the image blur correction sensor unit;
A second operation unit for allowing a user to select an operation of the image blur correction sensor unit control unit,
Image blur correction unit selection means for allowing a user to select one of the image blur correction lens unit control unit and the image blur correction sensor unit control unit;
An image blur correction unit control unit selection unit that allows a user to select one of the first operation unit and the second operation unit;
The camera whose operation is set by the one selected from the first operation unit and the second operation unit is selected from the image blur correction lens unit control unit and the image blur correction sensor unit control unit. system. An image sensor that generates an image signal representing a subject image based on an optical image, an image blur correction sensor unit that corrects movement of the subject image by changing the position of the image sensor, and the image blur correction lens unit are controlled. An interchangeable lens device that is detachably attached to a camera body having an image blur correction lens unit controller and constitutes a camera system,
An imaging lens system for generating the optical image;
An image blur correction lens unit that changes the configuration of the imaging lens system and corrects the movement of the optical image caused by the movement of the camera body;
An image blur correction lens unit controller for controlling the image blur correction lens unit;
A first operation unit for allowing a user to select an operation of the image blur correction lens unit control unit;
An interchangeable lens device that sets an operation of the image blur correction sensor unit control unit by an operation of the first operation unit.

Images