JP2009251492A - Imaging apparatus and control method for imaging apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an imaging apparatus capable of performing complete camera shake correction while reducing centering operation performed when observing through a finder, and to provide a control method for the imaging apparatus. <P>SOLUTION: When half-depressing operation of a release button 25 is performed (#21Y), a lens-side vibration-proofing mechanism 105 that performs camera shake correction by moving an optical system for camera shake correction 102 provided in an interchangeable lens 100 is operated (#51). When the optical system for camera a shake correction 102 reaches a termination of a movable range (#97Y), the lens vibration proofing operation is stopped (#99), and a body-side vibration-proofing mechanism 233 that performs camera shake correction by moving an imaging device 221 is operated (#101). When photography is finished, the centering operation of the lens-side vibration-proofing mechanism 105 and the body-side vibration-proofing mechanism 233 is performed (#71 and #72). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an imaging apparatus and an imaging apparatus control method, and more particularly, to an imaging apparatus having a camera shake correction mechanism (anti-vibration mechanism) and an imaging apparatus control method.

  When shooting a subject with a camera, a phenomenon in which a photographed image becomes unclear due to a shake of a photographer's hand is generally referred to as camera shake. In order to prevent this, a technique for detecting a camera shake state by a vibration sensor and driving a part of the photographing optical system (camera correction lens) so as to cancel the camera shake based on the output of the vibration sensor is widely known. Yes.

  By the way, since the camera shake is irregular, the camera shake correction lens gradually deviates from the movable center when the direction of the shake is biased in a specific direction, and may eventually reach the movable end. In this case, an operation (centering operation) for returning the camera shake correction lens to the movable center position must be performed. However, since this centering operation involves a change in the visual field range, if it is performed during the photographing operation, the photographed image is adversely affected.

Therefore, in response to a shooting preparation operation (half-pressing the release button), a camera shake correction operation (also referred to as an image blur correction operation or an anti-shake operation) is started, and shooting is performed in response to a shooting start operation (full release button pressing). An image blur correction device that performs a centering operation before the operation has been proposed (see Patent Document 1). According to this image blur correction apparatus, since the camera shake correction lens is once returned to the initial position before the photographing operation is performed, the possibility of reaching the movable end during the photographing operation can be reduced.
Japanese Patent No. 2752073

Further, an image blur correction device that restricts (narrows) the movable range of the camera shake correction lens when the release button is half-pressed has been proposed (see Patent Document 2). According to this image blur correction apparatus, there is no problem that the camera shake correction lens reaches its movable end even if the camera shake correction operation is continued for a long time while the release button is half-pressed.
Japanese Patent No. 2801175

  As described above, various techniques for preventing the camera shake correction lens from reaching the movable end during the camera shake correction operation have been proposed. However, since the image blur correction apparatus disclosed in Patent Document 1 performs the centering operation immediately before the photographing operation, there is a difference between the visual field range observed with the finder and the visual field range actually captured, and the composition of the captured image is increased. May be unintended by the photographer. In addition, the image blur correction apparatus disclosed in Patent Document 2 causes problems such as insufficient image blur correction during frequent viewfinder observation and frequent centering operations.

  The present invention has been made in view of such circumstances, and provides an imaging apparatus and an imaging apparatus control method capable of performing sufficient camera shake correction while reducing the centering operation during finder observation. Objective.

  In order to achieve the above object, an image pickup apparatus according to a first aspect of the present invention includes a first image stabilization unit that drives a first image stabilization mechanism based on an output of a first image stabilization sensor, and a second image stabilization detection. Control for selectively operating one of the second image stabilization unit and the second image stabilization unit that drives the second image stabilization mechanism based on the output of the sensor. And when the first camera shake correction mechanism reaches its movable end when the first vibration isolating means is operating, the first control means controls the first anti-vibration mechanism. The second anti-vibration means is operated instead of the anti-vibration means.

According to a second aspect of the present invention, in the image pickup apparatus according to the first aspect, the first image stabilization unit is disposed in a replaceable photographic lens, and the second image stabilization unit is disposed in the camera body. .
According to a third aspect of the present invention, there is provided the imaging apparatus according to the first aspect, wherein the first image stabilization unit is disposed in a camera body, and the second image stabilization unit is disposed on a replaceable photographing lens. ing.
Furthermore, the imaging device according to a fourth invention is the imaging device according to the first invention. The second image stabilizer is operated in response to an operation for starting the photographing operation.

According to a fifth aspect of the present invention, there is provided a control method for an image pickup apparatus, wherein a first image stabilization operation for driving a first image stabilization mechanism is executed based on an output from a first image stabilization sensor, and the first image stabilization operation is performed. When the first image stabilization mechanism reaches its movable end, the first image stabilization operation is stopped, and after the first image stabilization operation is stopped, the output of the second image stabilization sensor is Based on this, a second image stabilization operation for driving the second image stabilization mechanism is executed.
According to a sixth aspect of the present invention, there is provided a method for controlling an imaging apparatus according to the fifth aspect, wherein the first and second camera shake correction mechanisms are driven to their initial positions after completion of the photographing operation.

  An image pickup apparatus according to a seventh aspect of the invention instructs the first image stabilization mechanism provided in the lens barrel to start the first image stabilization operation, and also includes the first image stabilization mechanism. When the camera shake correction mechanism is operating the communication terminal for receiving that it has reached its movable end, the second vibration isolation mechanism provided in the camera body, and the first vibration isolation means Control means for operating the second image stabilization means instead of the first image stabilization means when the first camera shake correction mechanism has received its movable end via the communication terminal. And.

  An image pickup apparatus according to an eighth aspect of the present invention is provided in a camera body and a communication terminal for instructing the first image stabilization mechanism provided in the lens barrel to start the first image stabilization operation. The second image stabilization mechanism that can detect that the second image stabilization mechanism has reached its movable end, and the second image stabilization mechanism when the second image stabilization means is operating. Control means for instructing the first anti-vibration means via the communication terminal instead of the second anti-vibration means when the movable terminal is reached.

  An image pickup apparatus according to a ninth invention is the image pickup apparatus according to the seventh or eighth invention, wherein the control means has the camera shake correction mechanism of the first image stabilization means and the second image stabilization means reaching the movable end. If so, perform initialization.

  According to the present invention, it is possible to provide an imaging apparatus and a control method for the imaging apparatus that can perform sufficient camera shake correction while reducing the centering operation during viewfinder observation.

  Hereinafter, preferred embodiments using a digital camera to which the present invention is applied will be described with reference to the drawings. The digital camera according to the first embodiment is an interchangeable lens type, and an anti-vibration mechanism is provided in each of the interchangeable lens (lens frame) and the camera body. A live view that displays a subject image as a moving image based on image data acquired from an image sensor is provided in the camera body. In response to a half-press of the release button, a shooting preparation state is set, and shooting is started in response to a full-press of the release button, and still image data acquired at this time is recorded on a recording medium.

  FIG. 1 is a block diagram showing an overall configuration mainly including an electric system of a digital camera according to the first embodiment of the present invention. The digital camera according to this embodiment includes an interchangeable lens 100 and a camera body 200 and is electrically connected through a communication contact 291. Note that the interchangeable lens 100 and the camera body 200 may be configured integrally.

  Inside the interchangeable lens 100, a photographing optical system 101 for focus adjustment and focal length adjustment, a camera shake correction optical system 102, and a diaphragm 103 for adjusting the aperture amount are arranged. The photographing optical system 101 is driven by an optical system driving mechanism 107, the diaphragm 103 is driven by a diaphragm driving mechanism 109, and the camera shake correction optical system 102 is connected to be driven by a lens side image stabilization mechanism 105.

  The lens-side image stabilization mechanism 105, the optical system drive mechanism 107, and the aperture drive mechanism 109 are each connected to a lens CPU 111, and this lens CPU 111 is connected to the camera body 200 via a communication contact 291. The lens CPU 111 controls the interchangeable lens 100. The lens CPU 111 controls the optical system driving mechanism 107 to perform focusing and zoom driving, and controls the diaphragm driving mechanism 109 to perform aperture value control. In addition, the lens CPU 111 controls the lens-side image stabilization mechanism 105 based on the amount of camera shake detected by the vibration sensor in the interchangeable lens 100, and performs drive control of the image stabilization optical system 102 so as to cancel the influence of camera shake. Do. The lens side vibration isolation mechanism 105 will be described later with reference to FIG.

  In addition, in the lens CPU 111 or an electrically rewritable memory such as an EEPROM (not shown), focal length information of the interchangeable lens 100 (shortest focal length and longest focal length in the case of a zoom lens), open aperture value, minimum Lens information such as an aperture value, lens color balance information, aberration information, and information for AF is stored. Such lens information is transmitted from the lens CPU 111 to the camera body 200 via the communication contact 291. As lens information, in addition to the above-described stored information, there is position information of the camera shake correction optical system 102 driven by the lens-side image stabilization mechanism 105, and information such as whether or not the end of the movable range has been reached. Is also included.

A focal plane type shutter 213 for controlling the exposure time is disposed in the camera body 200 and behind the photographing optical system 101 and the camera shake correction optical system 102. The shutter 213 is operated by a shutter driving mechanism 237. Drive controlled. An imaging element 221 is disposed behind the shutter 213 and photoelectrically converts a subject image formed by the photographing optical system 101 into an electrical signal. The imaging element 221 may be a CCD (Charge Coupled Devices) or a CMOS (Complementary).
Needless to say, a two-dimensional image sensor such as Metal Oxide Semiconductor can be used.

  The image sensor 221 is connected to the image sensor drive circuit 223, and the image sensor drive circuit 223 reads an image signal from the image sensor 221. The output of the image sensor 221 is connected to a pre-processing circuit 225. The pre-processing circuit 225 performs pre-processing for image processing such as pixel thinning processing for live view display and clipping processing for enlarged display. Do.

  A dustproof filter 215, a piezoelectric element 216, and an infrared cut filter / low pass filter 217 are disposed between the shutter 213 and the image sensor 221. A piezoelectric element 216 is fixed around the dust filter 215, and this piezoelectric element 216 is vibrated by ultrasonic waves by a dust filter driving circuit 235. The dust attached to the dustproof filter 215 is removed by the vibration wave generated in the piezoelectric element 216.

  The infrared cut filter / low pass filter 217 is an optical filter for removing the infrared light component and the high frequency component from the subject light flux. An image pickup unit 219 including a dustproof filter 215, a piezoelectric element 216, an infrared cut filter / low pass filter 217, and an image pickup element 221 is integrally formed in an airtight manner so that dust and the like do not enter. The image pickup unit 219 including these integrated image pickup elements 221 and the like can be moved along the X-axis direction and the Y-axis direction on the image pickup surface of the image pickup element 221 by the body side vibration isolation mechanism 233, respectively.

  The body-side image stabilization mechanism 233 includes a vibration sensor that detects vibration caused by camera shake or the like applied to the camera body 200, and a correction that generates an image stabilization signal for removing vibration such as camera shake based on the output of the vibration sensor. A camera, a camera shake correction signal from the correction circuit, and a drive mechanism that shifts the image sensor 221 along the imaging surface, and a position of the image sensor 221 driven by the drive mechanism are detected based on the signal. It consists of a position detection sensor or the like. By this body side vibration isolation mechanism 233, the image pickup element 221 and the like are moved so as to cancel vibrations such as camera shake applied to the camera body 200, thereby performing vibration isolation. The body side vibration isolation mechanism 233 will be described later with reference to FIG.

  The preprocessing circuit 225 is connected to a data bus 252 in an ASIC (Application Specific Integrated Circuit) 250. The data bus 252 includes a sequence controller (hereinafter referred to as “body CPU”) 251, an image processing circuit 257, a compression / decompression circuit 259, a video signal output circuit 261, an SDRAM control circuit 265, an input / output circuit 271, and a communication circuit 273. A recording medium control circuit 275, a flash memory control circuit 279, and a switch detection circuit 283 are connected.

  The body CPU 251 connected to the data bus 252 controls the operation of this digital camera. A contrast AF circuit 253 is connected between the preprocessing circuit 225 and the body CPU 251 described above. The contrast AF circuit 253 extracts a high frequency component based on the image signal output from the preprocessing circuit 225, and outputs contrast information based on the high frequency component to the body CPU 251.

  The image processing circuit 257 connected to the data bus 252 is a variety of images such as digital amplification (digital gain adjustment processing) of digital image data, color correction, gamma (γ) correction, contrast correction, and live view display image generation. Perform processing. Further, the image processing circuit 257 obtains the luminance of the subject from the image data output from the image sensor 221.

  The compression / decompression circuit 259 is a circuit for compressing the image data stored in the SDRAM 267 by a compression method such as JPEG or TIFF, and decompressing the compressed and recorded image data. Note that image compression is not limited to JPEG or TIFF, and other compression methods can be applied.

  The video signal output circuit 261 is connected to the rear liquid crystal monitor 26 via the liquid crystal monitor drive circuit 263. The rear liquid crystal monitor 26 is disposed on the rear surface of the camera body 200. However, the rear liquid crystal monitor 26 is not limited to the rear surface and may be another display device as long as it can be observed by the photographer. The rear liquid crystal monitor 26 is a display device that performs live view display, reproduces and displays a captured subject image, and displays shooting information and menus.

  The video signal output circuit 261 displays image data stored in the SDRAM 267 and the recording medium 277, image data for live view output from the image processing circuit 257, and other various information for camera control on the rear liquid crystal monitor. 26 is a circuit for converting into a video signal to be displayed on H.26.

  The SDRAM 267 is connected to the data bus 252 via the SDRAM control circuit 265, and the SDRAM 267 temporarily stores the image data processed by the image processing circuit 257 or the image data compressed by the compression / decompression circuit 259. This is a buffer memory.

  The input / output circuit 271 connected to the image sensor driving circuit 223, the body side vibration isolation mechanism 233, the dustproof filter driving circuit 235, and the shutter driving mechanism 237 is connected to each circuit such as the body CPU 251 via the data bus 252. Control input and output.

  A communication circuit 273 connected to the lens CPU 111 via a communication contact 291 is connected to the data bus 252 and exchanges data and communicates control commands with the body CPU 251 and the like. A recording medium control circuit 275 connected to the data bus 252 is connected to the recording medium 277 and controls recording of image data and the like on the recording medium 277 and reading of the image data and the like.

  The recording medium 277 can be loaded with any rewritable recording medium such as an xD picture card (registered trademark), a compact flash (registered trademark), an SD memory card (registered trademark), or a memory stick (registered trademark). And is detachable from the camera body 200. In addition, the hard disk may be configured to be connectable via a communication contact.

  The flash memory control circuit 279 is connected to a flash memory 281, and the flash memory 281 stores a program for controlling the operation of the digital camera. The body CPU 251 stores the program in the flash memory 281. Control the digital camera according to the program. Note that the flash memory 281 is an electrically rewritable nonvolatile memory.

  Various switches 285 including a 1R switch for detecting the first stroke (half press) of the release button and a 2R switch for detecting the second stroke (full press) are connected to the data bus 252 via the switch detection circuit 283. Yes. The various switches 285 include a power switch linked to the power button, a menu switch linked to the menu button, a playback switch linked to the playback button, and other various switches linked to other operation members. When the power switch is turned on, the camera can be set to the operating state.

  The switch detection circuit 283 detects on / off states of the switches of the various switches 285. The switch detection circuit 283 is connected to an attachment / detachment detection switch 287. The attachment / detachment detection switch 287 is a switch for detecting whether the interchangeable lens 100 is attached to or removed from the camera body 200.

  Next, a configuration related to the image stabilization operation will be described with reference to FIG. FIG. 2 is a block diagram showing a configuration related to the image stabilization operation including the lens-side image stabilization mechanism 105 and the body-side image stabilization mechanism 233, and includes a specific configuration not shown in FIG. .

  The camera shake correction optical system 102 provided in the interchangeable lens 100 is supported by a movable support member 17, and the movable support member 17 is movable by the drive mechanism 13 in the x-axis direction and the y-axis direction, respectively. The vibration sensor 11 is disposed in the interchangeable lens 100, detects vibration due to camera shake or the like, and outputs a camera shake signal. As the vibration sensor 11, an acceleration sensor, an angular acceleration sensor, or the like is used.

  The correction circuit 12 for inputting the output of the vibration sensor 11 generates and outputs a camera shake correction signal for canceling the camera shake applied to the camera shake correction optical system 102. The drive mechanism 13 for inputting the camera shake correction signal drives the movable support member 17 holding the camera shake correction optical system 102 in the x-axis direction and the y-axis direction according to the camera shake correction signal.

  The position detection sensor 14 is a sensor that detects the position of the movable support member 17, and whether or not the camera shake correction optical system 102 has reached the end of its movable range, and at the movable center in the x-axis direction and the y-axis direction. Outputs information necessary to determine whether or not there is. As described above, when the end of the movable range is reached, this is transmitted to the control circuit 20 in the camera body 200. The vibration sensor 11, the correction circuit 12, the drive mechanism 13, and the position detection sensor 14 described above correspond to the lens side vibration isolation mechanism 105.

  The control circuit 10 is a control circuit that controls the image stabilization operation in the interchangeable lens 100, and corresponds to the lens CPU 111. When the control circuit 10 receives an instruction to start an image stabilization operation from the control circuit 20 on the camera body 200 side, the control circuit 10 causes the correction circuit 12 to output a camera shake correction signal, and the drive mechanism 13 drives the movable support member 17 in accordance with the camera shake correction signal. Thus, the influence of camera shake is reduced.

  In addition, when receiving a stop instruction for the image stabilization operation from the control circuit 20, the control circuit 10 causes the correction circuit 12 to stop outputting the camera shake correction signal and stop the image stabilization operation. Further, when an instruction for initialization of the vibration isolation mechanism is received from the control circuit 20, a centering operation is executed. That is, a centering control signal is output to the drive mechanism 13 to start moving the movable support member 17 toward the movable center, and when the center position signal is received from the position detection sensor 14, the drive is stopped.

  The image pickup device 221 provided in the camera body 200 is supported by a movable support member 27 (which is a part of the image pickup unit 219). The movable support member 27 is driven by the drive mechanism 23 in the x-axis direction and the y-axis direction. Each is free to move. The vibration sensor 21 is disposed in the camera body 200, detects vibration due to camera shake or the like, and outputs a camera shake signal. As the vibration sensor 21, an acceleration sensor, an angular acceleration sensor, or the like is used.

  The vibration sensor 21, the correction circuit 22, and the position detection sensor 24 disposed in the camera body 200 are configured in substantially the same manner as the vibration sensor 11, the correction circuit 12, and the position detection sensor 14 disposed in the interchangeable lens 100. Yes. The drive mechanism 23 is a drive mechanism that drives the movable support member 27 that holds the image sensor 221 in the x-axis direction and the y-axis direction according to a camera shake correction signal or a centering control signal. The anti-vibration operation and the centering operation are executed by these members in the same manner as the interchangeable lens 100 side. As with the position detection sensor 14, when the position detection sensor 24 reaches the end of the movable range of the movable support member 27 that holds the image sensor 221, the fact is transmitted to the control circuit 20. The vibration sensor 21, the correction circuit 22, the drive mechanism 23, and the position detection sensor 24 described above correspond to the body side vibration isolation mechanism 233.

  The control circuit 20 is a control circuit that controls the image stabilization operation in the camera body 200 and instructs the control circuit 10 in the interchangeable lens 100 to start, stop, and initialize the image stabilization operation. Corresponds. That is, when the control circuit 20 receives a half-press (1R switch on) signal from the release button 25, the control circuit 20 instructs the control circuit 10 of the interchangeable lens 100 to start the lens image stabilization operation. When the end of the movable range of the camera shake correction optical system 102 is reached during the lens image stabilization operation, the control circuit 20 moves the image sensor 221 with respect to the control circuit 20 of the camera body 200 to reduce the influence of camera shake. Start the body anti-vibration operation.

  In starting the exposure operation, the control circuit 20 stops the lens image stabilization operation and executes the body image stabilization operation if the control circuit 10 is executing the lens image stabilization operation. When the exposure operation is completed, the control circuit 20 instructs the control circuit 10 to perform a centering operation, and performs the centering operation so that the image sensor 221 is at the movable center position.

  Next, the operation of the digital camera according to the first embodiment of the present invention will be described using the flowcharts shown in FIGS. FIG. 3 shows a power-on reset operation by the body CPU 251 on the camera body 200 side. When a battery is loaded in the camera body 200, this flow starts, and it is first determined whether the power switch of the camera body 200 is on (# 1).

  If the result of determination in step # 1 is that the power switch is off, it enters a sleep state that is a state of low power consumption (# 3). In this sleep state, interrupt processing is performed only when the power switch is turned on, and processing for turning on the power switch is performed in step # 5 and subsequent steps. Until the power switch is turned on, operations other than power switch interrupt processing are stopped to prevent the power battery from being consumed.

  If the result of determination in step # 1 is that the power switch is on, or if the sleep state is exited in step # 3, power supply is started (# 5). Next, a dust removing operation is performed in the dust filter 215 (# 7). In this operation, a driving voltage is applied from the dust filter driving circuit 235 to the piezoelectric element 216 fixed to the dust filter 215, and dust and the like are removed by ultrasonic vibration waves.

  Subsequently, the body side vibration isolation mechanism 233 is initialized (# 9). In the initialization of the body side vibration isolation mechanism 233, a centering operation is performed by outputting a centering control signal from the control circuit 20 to the drive mechanism 23. When the body-side image stabilization mechanism is initialized, the lens CPU 111 is instructed to transmit lens information (# 11). Upon receiving the transmission instruction, the lens CPU 111 transmits lens-specific information such as focal length information, open aperture value, minimum aperture value, lens color balance information, aberration information, and AF information of the interchangeable lens 100 to the body CPU 251. To do.

  Subsequently, the lens information transmitted from the lens CPU 111 is read (# 13). The lens CPU 111 is instructed to initialize the lens-side image stabilization mechanism 105 (# 14). When the lens CPU 111 receives the initialization instruction, the lens CPU 111 executes the centering operation of the lens-side image stabilization mechanism 105.

  When an instruction to initialize the lens-side image stabilization mechanism 105 is given, next, a live view operation is started (# 15). In this step, the live view starts displaying a subject image on the rear liquid crystal 26 based on the image data acquired by the image sensor 221.

  Subsequently, photometry / exposure amount calculation is performed (# 16). In this step, the image processing circuit 257 obtains the subject brightness based on the image data acquired from the image sensor 221, and the body CPU 251 calculates the exposure amount based on the subject brightness, and the exposure mode is used for the shooting mode / shooting. The exposure control values such as the shutter speed and the aperture value are calculated according to the conditions. The calculated exposure control value is displayed on a display unit such as a rear liquid crystal monitor 26 or a control panel (not shown).

  When the photometry / exposure calculation is finished, it is next determined whether or not the regeneration switch is ON (# 17). The playback mode is a mode in which the still image data recorded on the recording medium 277 is read and displayed on the liquid crystal monitor 26 when the playback button is operated. If the result of determination is that the regeneration switch is on, regeneration operation is executed (# 33).

  If the result of determination in step # 17 is that the playback switch is not on, it is determined whether or not the menu switch is on (# 19). In this step, it is determined whether the menu button 37 is operated and the menu mode is set. If the result of determination is that the menu switch is on, a menu is displayed on the liquid crystal monitor 26 and menu setting operation is performed (# 35). Various setting operations such as AF mode, white balance, ISO sensitivity setting, and drive mode setting can be performed by the menu setting operation. Whether or not to perform live view display is also set by this menu setting operation.

  If the result of determination in step # 19 is that the menu switch is not on, it is determined whether or not the release button 25 has been pressed halfway, that is, whether or not the 1R switch is on. If the result of determination is that the 1R switch is on, a shooting operation subroutine for shooting preparation and shooting is executed (# 37). Details of this subroutine will be described later with reference to FIG.

  If the result of determination in step # 21 is that the 1R switch is not on, it is determined whether or not the interchangeable lens 100 has been removed (# 22). In this step, the state of the attachment / detachment detection switch 287 is detected and determined. If the result of this determination is that the interchangeable lens 100 has been removed, the live view operation is stopped (# 38). Since the interchangeable lens 100 is removed and no subject image is formed on the image sensor 221, the live view display is stopped. Subsequently, power supply to the camera body 200 and the interchangeable lens 100 is stopped (# 39).

  When the power supply is stopped, it is next determined whether or not the interchangeable lens 100 is attached (# 41). If the result of determination is that it is not attached, a standby state is returned to step # 41. Even if the power supply is stopped in step # 39, the power supply is supplied to the control system such as the body CPU 251 and the attachment / detachment detection switch 287, and it can be determined whether or not the interchangeable lens 100 is attached. If the result of determination in step # 41 is that lens mounting has been detected, processing returns to step # 5.

  If the result of determination in step # 22 is that the interchangeable lens 100 has been attached, it is determined whether or not the power switch is on, as in step # 1 (# 23). If the result of determination is that the power switch is on, processing returns to step # 16 and the above operation is repeated. On the other hand, if the power switch is not on, the power supply is stopped (# 25), the process returns to step # 3, and the above-described sleep state is entered. When the power supply is stopped in step # 25, the live view operation is also stopped.

  Next, a sub-routine of the photographing operation in step # 37 will be described using FIG. When the shooting operation subroutine is entered, first, the lens CPU 111 (control circuit 10) is instructed to start the lens image stabilization operation (# 51). When the lens CPU 111 receives an instruction to start the lens image stabilization operation, as described above, the lens CPU 111 performs drive control of the image stabilization optical system 102 so as to reduce camera shake.

  Next, contrast AF is executed (# 53). In this step, the photographing optical system 101 is driven via the lens CPU 111 and the optical system driving mechanism 107 so that the contrast information output from the contrast AF circuit 253 has a peak value.

  When contrast AF is executed, photometry / exposure amount calculation is performed in the same manner as in step # 16 to obtain exposure control values such as shutter speed and aperture value (# 55). Subsequently, it is determined whether or not the release button 25 has been fully pressed, that is, whether or not the 2R switch is on (# 57). If the result of this determination is that the 2R switch is not on, it is determined whether or not the 1R switch is on (# 81).

  If the result of determination in step # 81 is that the 1R switch is not on, that is, if the hand is released from the release button 25, an instruction to stop the lens image stabilization operation is given to the lens CPU 111 (# 83). The body anti-vibration operation is stopped (# 85). As will be described later, since the image stabilization operation before the 2R switch is turned on is either the lens image stabilization operation or the body image stabilization operation, in steps # 83 and # 85, the image stabilization operation during operation is performed. Like to stop.

  Subsequently, the lens CPU 111 is instructed to initialize the lens-side image stabilization mechanism 105 (# 87). In this step, a centering control signal is output to the drive mechanism 13 of the interchangeable lens 100, and the camera shake correction optical system 102 is driven toward the center position of the movable range. When the position detection sensor 14 detects that the center point of the movable range has been reached, the centering operation is stopped.

  Next, the body vibration isolation mechanism 233 is initialized (# 89). In this step, a centering control signal is output to the drive mechanism 23 of the camera body 200 to drive the image sensor 221 toward the center position of the movable range. When the position detection sensor 24 detects that the center point of the movable range has been reached, the centering operation is stopped. When the body vibration isolation mechanism 233 is initialized, the flow returns to the original flow.

  As described above, when it is detected in step # 81 that the hand has been released from the release button 25, the vibration-proofing mechanisms provided in the interchangeable lens 100 and the camera body 200 are stopped and initialized (selection ring). ) Is moving. As a result, wasteful power consumption can be prevented, and the image stabilization operation can be started from the center position of the movable range when the release button 25 is pressed halfway next time to enter the shooting preparation state.

  If the result of determination in step # 81 is that the 1R switch is on, it is determined whether or not a body anti-vibration operation is in progress (# 91). If the result of this determination is that body anti-shake operation is in progress, the routine jumps to step # 103. On the other hand, as a result of the determination, if the body image stabilization operation is not being performed, that is, if the lens image stabilization operation is continuing, the lens CPU 111 is instructed to transmit lens information as in step # 11 (# 93) The lens information sent in response to this transmission instruction is read (# 95).

  Next, based on the lens information read in step # 95, it is determined whether or not the lens anti-vibration movable terminal has been reached (# 97). In this step, it is determined whether the camera shake correction optical system 102 has reached the end of its movable range. If the result of this determination is that the movable end has not been reached, processing returns to step # 57. That is, when the release button 25 is kept half pressed and not fully pressed and the movable end has not been reached, the steps # 57 → # 81 → # 91 to # 97 → # 57 are repeatedly executed. It is in the standby state to do.

  If the result of determination in step # 97 is that the lens image stabilization movable terminal has been reached, the lens CPU 111 is instructed to stop the lens image stabilization operation (# 99), and the body image stabilization operation is started (# 101). That is, since the camera shake correction optical system 102 reaches the end of its movable range and cannot sufficiently prevent camera shake, the lens image stabilization operation is stopped at that position, and imaging is performed based on the output of the vibration sensor 21. The body anti-vibration operation for driving the element 221 is started. Since the image sensor 221 is located at the center position of the movable range at the start of the body image stabilization operation, sufficient image stabilization can be performed.

  Once the body vibration isolation operation is started, it is next determined whether or not the movable vibration isolation end has been reached (# 103). This determination is made based on information from the position sensor 24. If the result of determination is that the movable terminal has not been reached, processing returns to step # 57. Therefore, after the transition to the body vibration isolation operation, if the release button 25 remains half-pressed and not fully pressed and has not reached the movable end, steps # 57 → # 81 → # 91 → It is in a standby state in which # 103 → # 57 is repeatedly executed.

  If the result of determination in step # 103 is that the body vibration isolation movable terminal has been reached, the lens CPU 111 is instructed to initialize the lens side vibration isolation mechanism 105 (# 105), and the body vibration isolation mechanism 233 is initialized. (# 107). Since both the lens-side image stabilization mechanism 105 and the body image stabilization mechanism 233 have reached the movable end, both the image stabilization mechanisms are initialized. Note that the image stabilization operation after initialization may be performed from the lens image stabilization operation, but in the present embodiment, the body image stabilization operation is continuously executed.

  As described above, when the release button 25 is pressed halfway to enter the shooting preparation state, the lens image stabilization operation is started (# 51), and when the end of the movable range in the lens side image stabilization mechanism 105 is reached (# 97Y), the lens. Anti-vibration is stopped (# 99), and the body anti-vibration operation is performed by the body anti-vibration mechanism 233 (# 101). For this reason, the centering operation can be reduced and sufficient camera shake correction can be performed.

  If the result of determination in step # 57 is that the 2R switch is on, the routine proceeds to step for shooting. First, the lens CPU 111 is instructed to stop the lens image stabilization operation (# 59). When the lens CPU 111 receives the stop of the lens image stabilization operation, the lens CPU 111 stops the image stabilization operation. In step # 99, if the lens image stabilization operation is stopped, this step is skipped.

  Next, the body image stabilization operation is started (# 61). In this body vibration isolation operation, the image sensor 221 is moved so as to reduce the movement of the camera shake based on the camera shake signal of the vibration sensor 21 as described above. In step # 101, if the body image stabilization operation has been started, the body image stabilization operation is continued as it is.

  Subsequently, the lens CPU 111 is instructed to perform a narrowing operation (# 63). Now that the preparation for entering the imaging operation is completed, the exposure operation is started (# 65). In the exposure, the traveling of the front curtain of the shutter 213 is started and the charge accumulation of the image sensor 221 is started. When the time corresponding to the shutter speed obtained in step # 55 or the shutter speed manually set by the photographer has elapsed, the running of the rear curtain of the shutter 213 is started and the charge accumulation of the image sensor 221 is ended.

  When the exposure operation ends, the lens CPU 111 is instructed to open the aperture (# 67), and the body image stabilization operation is stopped (# 69). Thereafter, the lens CPU 111 is instructed to initialize (# 71). When the lens CPU 111 receives an instruction for initialization, the lens CPU 111 executes a centering operation.

  If an instruction to initialize the lens image stabilization mechanism is issued, the body image stabilization mechanism is then initialized (# 73). The initialization of the body vibration isolation mechanism is performed by outputting a centering control signal from the control circuit 20 to the drive mechanism 23, and the movable support member 27 holding the image sensor 221 is located at the center position of the movable range.

  Once the body image stabilization mechanism is initialized, the image processing circuit 257 or the like performs image processing of the still image signal read from the image sensor 221 (# 75) and records the processed image data. An image is recorded on the medium 277 (# 77). When the image recording is completed, the original routine is restored.

  As described above, when the release button 25 is fully pressed and the photographing operation is started, the lens image stabilization operation is stopped and the body image stabilization operation in the camera body is started. When the exposure operation ends, the centering operation (initialization) of the lens-side image stabilization mechanism 105 and the body-side image stabilization mechanism 233 is performed.

  In the present embodiment, the influence of camera shake is reduced by the body image stabilization operation at the time of shooting. This is because the lens anti-shake operation was started in step # 51 at first, and it is more likely that the lens anti-shake operation was performed at the time of shooting. Yes. In the case where the release button 25 is fully pressed and body stabilization is performed at the time of shooting, the influence of camera shake may be reduced by a lens stabilization operation.

  Next, the operation of the interchangeable lens 100 in the lens CPU 111 will be described with reference to FIG. First, it is determined whether or not a lens information request instruction has been issued from the body CPU 251 (# 111). If it is determined that a lens information request instruction has been issued, lens information is transmitted (# 131). The lens information here is information unique to the lens such as an open aperture value, a minimum aperture value, lens color balance information, aberration information, and AF information, as described above. This is information indicating whether or not the camera shake correction optical system 102 of the mechanism 105 has reached the end of the movable range. When the transmission of the lens information ends, the process returns to step # 111.

  If the result of determination in step # 111 is that it is not a lens information request instruction, it is determined whether or not an instruction to start an image stabilization operation has been issued from the body CPU 251 (# 113). If the result of this determination is an instruction to start the image stabilization operation, the image stabilization operation is started (# 133). In the image stabilization operation, as described above, the image stabilization optical system 102 is driven so as to reduce the image stabilization based on the image stabilization signal from the vibration sensor 11. When the image stabilization operation is started, the process returns to step # 111.

  If the result of determination in step # 113 is not an instruction to start image stabilization, it is determined whether or not an instruction to stop image stabilization has been issued from the body CPU 251 (# 115). If the result of this determination is that the image stabilization operation has been stopped, the image stabilization operation on the lens side is stopped (# 135). When the image stabilization operation is stopped, the process returns to step # 111.

  If the result of determination in step # 115 is not an instruction to stop vibration isolation, it is determined whether or not an initialization instruction for the vibration isolation mechanism has been issued from the body CPU 251 (# 117). If the result of this determination is an instruction to initialize the image stabilization mechanism, an initialization operation (centering operation) of the lens side image stabilization mechanism 105 is performed (# 137). When the initialization operation is performed, the process returns to step # 111.

  If the result of determination in step # 117 is not an instruction for initialization of the image stabilization mechanism, it is determined whether or not a narrowing-down instruction has been issued from the body CPU 251 (# 119). If the result of this determination is a narrowing instruction, the narrowing amount transmitted from the body CPU 251 is subsequently received, and the diaphragm driving mechanism 109 is controlled based on these pieces of information to narrow down the diaphragm 103. Is executed (# 139). When the narrowing-down operation is performed, the process returns to step # 111.

  If the result of determination in step # 119 is not a narrowing-down instruction, it is determined whether or not an aperture opening instruction has been issued from the body CPU 251 (# 121). If the result of this determination is an aperture opening instruction, the aperture drive mechanism 109 is controlled to perform aperture opening drive control (# 141). When the aperture opening operation is performed, the process returns to step # 111.

  If the result of determination in step # 121 is not an aperture opening instruction, it is determined whether or not an instruction for lens driving operation has been issued from the body CPU 251 (# 123). If the result of this determination is a lens drive control instruction, the lens drive amount and drive direction transmitted subsequently are received, and the lens CPU 111 controls the optical system drive mechanism 107 to control the lens of the photographing optical system 101. Driving is performed (# 143). When the lens driving operation is performed, the process returns to step # 101.

  As described above, in the first embodiment of the present invention, when the release button 25 is half-pressed (shooting preparation state, # 21Y in FIG. 3), the camera shake correction optical system 102 provided in the interchangeable lens 100 is used. , The lens-side image stabilization mechanism 105 that performs camera shake correction is operated (# 51 in FIG. 4). When the image stabilization optical system 102 reaches the end of the movable range (# 97Y in FIG. 4), the lens image stabilization operation is stopped (# 99 in FIG. 4), and the body that performs image stabilization by moving the image sensor 221 is stopped. The side anti-vibration mechanism 233 is operated (# 101 in FIG. 4). Then, at the end of shooting, the centering operation of the lens-side image stabilization mechanism 105 and the body-side image stabilization mechanism 233 is performed (# 71, # 72 in FIG. 4).

  Therefore, in the shooting preparation state, the lens image stabilization operation by the lens side image stabilization mechanism 105 and the body image stabilization operation by the body side image stabilization mechanism 233 can be performed continuously. In other words, if sufficient anti-shake operation cannot be performed by the lens anti-shake operation, the anti-shake operation is performed by the body anti-shake operation, so that sufficient camera shake correction can be performed while reducing the centering operation during viewfinder observation.

  Next, a second embodiment of the present invention will be described with reference to FIG. In the first embodiment of the present invention, as the image stabilization operation, the lens image stabilization operation is performed first. When the camera shake correction optical system 102 reaches the end of the movable range, the lens image stabilization operation is stopped and the body image stabilization operation is performed. Had to do. On the other hand, in the second embodiment of the present invention, the body image stabilization operation is performed first, and when the image sensor 221 reaches the end of the movable range, the body image stabilization operation is stopped and the lens image stabilization operation is performed. ing.

  The configuration of the digital camera according to the second embodiment of the present invention is the same as that of the first embodiment, and only the flowchart of the photographing operation shown in FIG. 4 is replaced with the flowchart shown in FIG. The explanation will focus on the differences in use. In FIG. 6, the same processing steps as those in the flowchart of FIG. 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  When the shooting operation flow in the present embodiment is entered, the body image stabilization operation is started (# 151). As in the first embodiment, in the body image stabilization operation, the drive mechanism 23 drives the movable support member 27 holding the image sensor 221 based on the output of the vibration sensor 21 so as to reduce the influence of camera shake.

  When the body image stabilization operation is started, the contrast AF is executed (# 53) and the photometry / exposure amount is calculated (# 55) as in the first embodiment. Thereafter, it is determined whether or not the 2R switch is ON (# 57). If the result of this determination is OFF, it is determined whether or not the 1R switch is ON (# 81). If the result of this determination is OFF, as in the first embodiment, the image stabilization operation is stopped and initialized in step # 83 to step # 89, and the original flow is returned to.

  If the result of determination in step # 81 is that the 1R switch is on, it is next determined whether or not a lens image stabilization operation is in progress, as in step # 97 of the first embodiment (# 191). If the result of this determination is that lens stabilization is in progress, the process jumps to step # 202A. On the other hand, as a result of the determination, if the lens image stabilization operation is not being performed, that is, if the body image stabilization operation is continuing, as in step # 103 in the first embodiment, the body anti-vibration end is set. It is determined whether or not it has been reached (# 197).

  If the result of determination in step # 197 is that the movable end of body vibration isolation has not been reached, processing returns to step # 57. That is, when the release button 25 is half pressed and not fully pressed and the movable end is not reached, Steps # 57 → # 81 → # 191 → # 197 → # 57 are repeatedly executed. It is in the standby state to do.

  If the result of determination in step # 197 is that the body anti-vibration end has been reached, the body image stabilization operation is stopped (# 199), and the lens CPU 111 is instructed to start the lens image stabilization operation (#). 201). That is, since the image pickup element 221 reaches the end of its movable range and cannot perform sufficient camera shake correction, the body image stabilization operation is stopped and the lens image stabilization operation is performed.

  Subsequently, as in step # 93 in the first embodiment, the lens CPU 111 is instructed to transmit lens information (# 202A), and the lens information sent in response to the transmission instruction is read (# 202B). . It is determined whether or not the lens stabilization movable end has been reached using information on whether or not the camera shake correction optical system 102 has reached the movable end in the lens information read at this time (# 203).

  If the result of determination in step # 203 is that the lens anti-vibration movable end has not been reached, processing returns to step # 57. Therefore, if the release button 25 remains half-pressed and not fully pressed after the shift to the lens anti-vibration operation, and the movable end has not been reached, steps # 57 → # 81 → # 191 → It is in a standby state in which # 202A → # 202B → # 203 → # 57 is repeatedly executed.

  If the result of determination in step # 203 is that the lens anti-vibration movable end has been reached, as in the first embodiment, an instruction to initialize the lens anti-vibration mechanism is issued (# 105), and the body anti-vibration mechanism is Initialization is performed (# 107), and the process returns to step # 57.

  If the result of determination in step # 57 is that the 2R switch is on, the body image stabilization operation is stopped (# 159), and the body image stabilization operation is started (# 161). In this embodiment, since the body anti-shake operation is started in step # 151, there is a possibility that the body anti-shake operation is performed when the release button 25 is fully pressed and the photographing operation is started. Therefore, the influence of camera shake is reduced by the lens image stabilization operation during the shooting operation. In addition, when the lens anti-shake operation is performed when the release button 25 is fully pressed, the body anti-shake operation may be performed.

  Subsequently, as in the first embodiment, execution of a narrowing operation is instructed (# 63), exposure operation is performed (# 65), and when the exposure operation ends, execution of an aperture opening operation is instructed (# 67). . Thereafter, the lens CPU 111 is instructed to stop the lens image stabilization operation started in step # 161 (# 169).

  When an instruction to stop the lens image stabilization operation is issued, as in the first embodiment, an instruction to initialize the lens image stabilization mechanism is issued (# 71), the body image stabilization mechanism is initialized (# 73), and read out. Image processing is performed on the image data (# 75), and the image data is recorded on the recording medium 277 (# 77). When image recording is performed, the original flow is restored.

  As described above, in the second embodiment of the present invention, when the release button 25 is half-pressed (shooting preparation state, # 21Y in FIG. 3), the image sensor 221 in the camera body 200 moves. The body side anti-vibration mechanism 233 for correcting camera shake is operated (# 151 in FIG. 6). When the image sensor 221 reaches the end of the movable range (# 197Y in FIG. 6), the body image stabilization operation is stopped, and the lens side image stabilization mechanism 105 that performs image stabilization by moving the image stabilization optical system 102 is operated. (# 199, # 201 in FIG. 4). Then, at the end of shooting, the centering operation of the lens-side image stabilization mechanism 105 and the body-side image stabilization mechanism 233 is performed (# 71 and # 72 in FIG. 6).

  Therefore, also in the present embodiment, in the shooting preparation state, the body image stabilization operation by the body side image stabilization mechanism 233 and the lens image stabilization operation by the lens side image stabilization mechanism 105 can be performed continuously. That is, when sufficient anti-shake operation cannot be performed by the body anti-shake operation, the anti-shake operation is performed by the lens anti-shake operation, so that sufficient camera shake correction can be performed while reducing the centering operation during the viewfinder observation.

  As described above, in each embodiment of the present invention, when one of the lens side anti-vibration mechanism and the body side anti-vibration mechanism starts an anti-vibration operation and reaches the end of the movable range of the anti-vibration mechanism, Therefore, sufficient camera shake correction can be performed while reducing the centering operation during viewfinder observation.

  In each embodiment of the present invention, the image stabilization operation is started when the release button 25 is half-pressed. However, the present invention is not limited to this, and an imaging device such as when the power switch is turned on is used. Of course, the image stabilization operation may be started at a different timing such as when the operation state is reached.

  In each embodiment of the present invention, the order of operation of the image stabilization mechanism is determined in advance. That is, in the first embodiment, the lens image stabilization operation is performed first, and then the body image stabilization operation is performed. In the second embodiment, the body image stabilization operation is first performed, and then the lens image stabilization operation is performed. However, both may be performed, and which one is performed first may be set in a menu mode or the like.

  Furthermore, in each embodiment of the present invention, when the end of the movable range of one vibration isolating mechanism is reached, the other vibration isolating mechanism is switched to, but the position of this end is an end portion that is not physically movable. However, the present invention is not limited to this, and it may be provided on the near side from this end.

  Furthermore, in each embodiment of the present invention, an example in which the image pickup apparatus is applied to a compact digital camera has been described. However, the present invention is not limited to this, and a digital single-lens reflex camera may be used. Of course, the present invention can also be applied to an imaging apparatus.

  As mentioned above, although it demonstrated using each embodiment of this invention, this invention is not limited as it is to the said embodiment, In the implementation stage, a component can be deform | transformed and embodied in the range which does not deviate from the summary. . In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, you may delete some components of all the components shown by embodiment.

1 is a block diagram illustrating an overall configuration mainly including an electric system of a digital camera according to a first embodiment of the present invention. It is a block diagram which shows the structure relevant to the image stabilization operation | movement in 1st Embodiment of this invention. It is a flowchart which shows the operation | movement of the power-on reset in the camera main body side in 1st Embodiment of this invention. It is a flowchart which shows the imaging | photography operation | movement in 1st Embodiment of this invention. It is a flowchart which shows the operation | movement of the power-on reset in the interchangeable lens side in 1st Embodiment of this invention. It is a flowchart which shows the imaging | photography operation | movement in 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Control circuit, 11 ... Vibration sensor, 12 ... Correction circuit, 13 ... Drive mechanism, 14 ... Position detection sensor, 17 ... Movable support member, 20 ... Control circuit , 21 ... Vibration sensor, 22 ... Correction circuit, 23 ... Drive mechanism, 24 ... Position detection sensor, 25 ... Release button, 26 ... Rear LCD monitor, 27 ... Movable Support member, 100 ... interchangeable lens, 101 ... photographing optical system, 102 ... camera shake correction optical system, 103 ... stop, 105 ... lens side image stabilization mechanism, 107 ... optical system Drive mechanism 109... Aperture drive mechanism 111... Lens CPU 200. Camera body 213 Focal plane shutter 215 Dust filter 216 Piezoelectric element 217.・ Infrared cut filter Pass filter, 219 ... Imaging unit, 221 ... Imaging element, 223 ... Imaging element drive circuit, 225 ... Pre-processing circuit, 233 ... Body side anti-vibration mechanism, 235 ... Dust-proof filter Drive circuit, 237 ... shutter drive mechanism, 250 ... ASIC, 251 ... sequence controller (body CPU), 252 ... data bus, 253 ... contrast AF circuit, 257 ... image processing circuit 259 ... Compression / decompression circuit, 261 ... Video signal output circuit, 263 ... Liquid crystal monitor drive circuit, 265 ... SDRAM detection circuit, 267 ... SDRAM, 271 ... Input / output circuit, 273 ... Communication circuit, 275 ... Recording medium control circuit, 277 ... Recording medium, 279 ... Flash memory control circuit, 281 ... F Sshumemori, 283 ... switch detection circuit, 285 ... various switches, 287 ... attachment detection switch 291 ... communication contact

Claims (9)

First anti-vibration means for driving the first camera shake correction mechanism based on the output of the first camera shake detection sensor;
Based on the output of the second camera shake detection sensor, second anti-vibration means for driving the second camera shake correction mechanism;
Control means for selectively operating one of the first vibration isolation means and the second vibration isolation means;
It has
When the first camera shake correction mechanism reaches its movable end when operating the first image stabilization means, the control means replaces the first image stabilization means with the second An image pickup apparatus that operates the vibration isolating means.   2. The imaging apparatus according to claim 1, wherein the first image stabilization unit is disposed in a replaceable photographing lens, and the second image stabilization unit is disposed in a camera body.   2. The imaging apparatus according to claim 1, wherein the first image stabilization unit is disposed in a camera body, and the second image stabilization unit is disposed on a replaceable photographing lens.   The control means operates the first image stabilization means in response to an operation for setting the imaging apparatus to an operation state or an operation for starting an imaging preparation operation, and the second anti-vibration means in response to an operation for starting an imaging operation. The imaging apparatus according to claim 1, wherein the vibration unit is operated. Performing a first image stabilization operation for driving the first image stabilization mechanism based on the output of the first image stabilization sensor;
When the first image stabilization mechanism reaches its movable end during the first image stabilization operation, the first image stabilization operation is stopped,
After stopping the first image stabilization operation, the second image stabilization operation for driving the second image stabilization mechanism is executed based on the output of the second image stabilization sensor. Method.   6. The method of controlling an imaging apparatus according to claim 5, wherein the first and second camera shake correction mechanisms are driven to their initial positions after the photographing operation is finished. The first image stabilization mechanism provided in the lens barrel is instructed to start the first image stabilization operation, and the first image stabilization mechanism of the first image stabilization mechanism reaches its movable end. A communication terminal for receiving information,
A second anti-vibration mechanism provided in the camera body;
When the first camera shake correction mechanism receives the fact that the first camera shake correction mechanism has reached its movable end through the communication terminal while operating the first image stabilization means, the first image stabilization means Instead, control means for operating the second vibration isolation means,
An image pickup apparatus comprising: A communication terminal for instructing the first image stabilization mechanism provided in the lens barrel to start the first image stabilization operation;
A second vibration isolation mechanism provided in the camera body and capable of detecting that the second camera shake correction mechanism has reached its movable end;
If the second image stabilization mechanism reaches its movable end when the second image stabilization unit is operating, the first image stabilization unit is replaced with the second image stabilization unit. Control means for instructing via the communication terminal;
An image pickup apparatus comprising:   8. The control unit according to claim 6, wherein the control unit performs initialization when the camera shake correction mechanism of the first image stabilization unit and the second image stabilization unit reaches the movable end. The imaging device described in 1.