JP2014041278A - Electronic camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a hand shake correction performance.SOLUTION: An imager 44 has an imaging surface to which an optical image is emitted. An immovable body 40 supports the imager 44 so that the imager 44 is movable. A gyro sensor 46 detects the movement of the immovable body 40 in a direction around X axis and a direction around Y axis. Actuators 60x and 60y correct the relative posture between the immovable body 40 and the imager 44 by referring to the detection result of the gyro sensor 46. An accelerator sensor 64 detects an external force applied to the imager 44. Based on the detection result of the accelerator sensor 64, the relative posture between a lens and the imager 44 is corrected.

Description

  The present invention relates to an electronic camera, and more particularly to an electronic camera having a camera shake correction function.

  An example of this type of camera is disclosed in Patent Document 1. According to this background art, the X-axis gyro sensor and the Y-axis gyro sensor are disposed on the lower left corner where the bottom and left sides of the imaging range intersect. Camera shake in the pitch direction is detected by the X-axis gyro sensor, while camera shake in the yaw direction is detected by the Y-axis gyro sensor, and camera shake correction is executed based on these detection results.

JP 2008-216570 A

  However, since the gyro sensor cannot detect a linear movement in a direction orthogonal to the optical axis, the background art has a limit in the camera shake correction performance.

  Therefore, a main object of the present invention is to provide an electronic camera capable of improving the camera shake correction performance.

  An electronic camera according to the present invention (10: reference numeral corresponding to the embodiment; the same applies hereinafter) includes an imaging means (44) having an imaging surface on which an optical image is irradiated, a support member (40) that movably supports the imaging means, a default First detection means (46) for detecting the movement of the support member in the direction around the axis, and first correction means (48x to 62x) for correcting the relative posture of the support member and the imaging means with reference to the detection result of the first detection means , 48y to 62y), second detection means (48x, 48y, 64) for detecting the external force urged by the imaging means, and detection of the range of the image created based on the output of the imaging means by the second detection means Second correction means (74x to 88x, 74y to 88y) for correcting with reference to the result is provided.

  Preferably, the second correcting unit corrects the relative posture between the lens (72) disposed in front of the imaging surface and the imaging surface.

  Preferably, the first detection means corresponds to an angular velocity sensor that detects an angular velocity around a predetermined axis.

  Preferably, the second detection means includes an acceleration sensor (64) for detecting the acceleration of the imaging means in the direction along the predetermined axis.

  Preferably, the second detection means includes a position sensor (48x, 48y) for detecting a change in the relative position between the support member and the imaging means in the direction along the predetermined axis, and the second correction means is an acceleration in the direction along the predetermined axis. Extraction means (78x, 78y) for extracting the component from the output of the position sensor is included.

  Preferably, the predetermined axis includes two axes orthogonal to the optical axis and orthogonal to each other.

  An electronic camera (10) according to the present invention includes a lens (72) that irradiates an optical image onto an imaging surface provided in an imaging means (44), a support member (70) that movably supports the lens, and a support member in a direction around a predetermined axis First detection means (90) for detecting the movement of the lens, first correction means (74x to 88x, 74y to 88y) for correcting the relative posture between the support member and the lens with reference to the detection result of the first detection means, the lens Second detection means (74x, 74y, 92) for detecting the external force urged by the second, and a range of an image created based on the output of the imaging means with reference to the detection result of the second detection means Two correction means (48x to 62x, 48y to 62y) are provided.

  According to the present invention, the relative posture between the support member that moves and supports the image pickup means and the image pickup means is corrected based on the movement of the support member in the direction around the predetermined axis. As a result, so-called rotational shake is suppressed. Further, the external force urged in the direction around the predetermined axis is excluded from the external force detected by the second detection means (external force urged by the imaging means), and the range of the image created based on the output of the imaging means Is corrected based on the detection result of the second detection means. Thus, so-called shift shake is suppressed. Thus, the camera shake correction performance is improved.

  According to the present invention, the relative posture between the lens and the support member that movably supports the lens is corrected based on the movement of the support member in the direction around the predetermined axis. As a result, so-called rotational shake is suppressed. Further, the external force urged in the direction around the predetermined axis is excluded from the external force (external force urged by the lens) detected by the second detection means, and the range of the image created based on the output of the imaging means is Correction is performed based on the detection result of the second detection means. Thus, so-called shift shake is suppressed. Thus, the camera shake correction performance is improved.

  The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

It is a block diagram which shows the basic composition of one Example of this invention. It is a block diagram which shows the basic composition of the other Example of this invention. It is a block diagram which shows the structure of one Example of this invention. FIG. 4 is a block diagram illustrating an example of a configuration of a sensor unit applied to the embodiment in FIG. 3. FIG. 4 is a block diagram illustrating an example of a configuration of a lens unit applied to the embodiment in FIG. 3. It is a block diagram which shows another example of a structure of the sensor unit applied to the FIG. 2 Example. FIG. 6 is a block diagram showing another example of the configuration of the sensor unit applied to the embodiment in FIG. 3. It is a block diagram which shows another example of a structure of the lens unit applied to the FIG. 3 Example. FIG. 11 is a block diagram illustrating still another example of the configuration of the sensor unit applied to the embodiment in FIG. 2.

Embodiments of the present invention will be described below with reference to the drawings.
[Basic configuration 1]

  Referring to FIG. 1, the electronic camera of this embodiment is basically configured as follows. The imaging unit 1a has an imaging surface on which an optical image is irradiated. The support member 2a movably supports the imaging unit 1a. The first detection means 3a detects the movement of the support member 2a in the direction around the predetermined axis. The 1st correction means 4a correct | amends the relative attitude | position of the supporting member 2a and the imaging means 1a with reference to the detection result of the 1st detection means 3a. The 2nd detection means 5a detects the external force urged | biased by the imaging means 1a. The second correction unit 6a corrects the range of the image created based on the output of the imaging unit 1a with reference to the detection result of the second detection unit 5a.

The relative posture between the support member 2a that movably supports the image pickup unit 1a and the image pickup unit 1a is corrected based on the movement of the support member 2a around the predetermined axis. As a result, so-called rotational shake is suppressed. Further, the external force urged in the direction around the predetermined axis is excluded from the external force detected by the second detection means 5a (external force urged by the imaging means 1a), and is created based on the output of the imaging means 1a. The range of the image is corrected based on the detection result of the second detection means 5a. Thus, so-called shift shake is suppressed. Thus, the camera shake correction performance is improved.
[Basic configuration 2]

  Referring to FIG. 2, an electronic camera according to another embodiment is basically configured as follows. The lens 1b irradiates the imaging surface provided in the imaging means 7b with an optical image. The support member 2b movably supports the lens 1b. The first detection means 3b detects the movement of the support member 2b in the direction around the predetermined axis. The first correction unit 4b corrects the relative posture between the support member 2b and the lens 1b with reference to the detection result of the first detection unit 3b. The second detection means 5b detects an external force biased by the lens 1b. The second correction unit 6b corrects the range of the image created based on the output of the imaging unit 7b with reference to the detection result of the second detection unit 5b.

The relative posture between the support member 2b that supports the lens 1b and the lens 1b is corrected based on the movement of the support member 2b around the predetermined axis. As a result, so-called rotational shake is suppressed. Further, the external force urged in the direction around the predetermined axis is excluded from the external force detected by the second detection means 5b (external force urged by the lens 1b), and an image created based on the output of the imaging means 7b. Is corrected based on the detection result of the second detection means 5b. Thus, so-called shift shake is suppressed. Thus, the camera shake correction performance is improved.
[Example]

  Referring to FIG. 3, the digital camera 10 of this embodiment includes a lens unit 12 provided with a focus lens (strictly, a lens group) 72 driven in the optical axis direction by a driver 16a. The optical image that has passed through the focus lens 72 is irradiated onto the light receiving surface (= imaging surface) of the image sensor 44 provided in the sensor unit 14 and subjected to photoelectric conversion. As a result, a charge representing the scene captured on the light receiving surface is generated.

  When the power is turned on, the CPU 28 instructs the driver 16b to repeat the exposure operation and the thinning readout operation in order to execute the moving image capturing process. In response to a vertical synchronization signal Vsync periodically generated from an SG (Signal Generator) (not shown), the driver 16b exposes the imaging surface and reads out part of the charge generated on the imaging surface in a raster scanning manner. From the imaging device 44, raw image data based on the read charges is periodically output.

  The signal processing circuit 18 performs processing such as white balance adjustment, color separation, and YUV conversion on the raw image data output from the image sensor 44 to generate image data in YUV format. The generated image data is written into the SDRAM 22 through the memory control circuit 20. The LCD driver 24 repeatedly reads out the image data stored in the SDRAM 22 through the memory control circuit 20 and drives the LCD monitor 26 based on the read image data. As a result, a real-time moving image (through image) representing the scene captured on the imaging surface is displayed on the monitor screen.

  The CPU 28 also executes a simple AE process based on the Y data output from the signal processing circuit 18 and calculates an appropriate exposure time. The calculated appropriate exposure time is set in the driver 16b, and as a result, the brightness of the through image displayed on the LCD monitor 26 is appropriately adjusted.

  When the shutter button 30sh provided on the key input device 30 is half-pressed, the CPU 28 executes strict AE processing and AF processing based on the Y data output from the signal processing circuit 18. The optimum exposure time calculated by the strict AE process is set in the driver 16b, and thereby the brightness of the through image is strictly adjusted. As a result of the AF process, the focus lens 72 is moved in the optical axis direction by the driver 16a, and is placed at the focal point by a so-called hill climbing process.

  When the shutter button 30sh is fully pressed, the CPU 28 instructs the driver 16b to execute the main exposure operation and the all pixel reading once. The driver 16b performs main exposure on the imaging surface in response to the generation of the vertical synchronization signal Vsync, and reads out all the charges generated thereby in a raster scanning manner. As a result, high-resolution raw image data representing a scene captured on the imaging surface is output from the imaging device 44.

  The output raw image data is subjected to the same processing as described above, and as a result, high-resolution image data conforming to the YUV format is secured in the SDRAM 22. The I / F 32 reads out the high-resolution image data thus stored in the SDRAM 22 through the memory control circuit 20, and records the read-out image data on the recording medium 34 in a file format. Note that the moving image capturing process is resumed when high-resolution image data is stored in the SDRAM 22.

  The sensor unit 14 is configured as shown in FIG. The non-moving body 40 is fixedly supported by a camera housing (not shown), the moving body 42 is movably supported by the non-moving body 40, and the imaging element 44 is fixedly supported by the moving body 42. Both the moving body 42 and the non-moving body 40 are formed in a plate shape, and the main surfaces of the moving body 42 and the non-moving body 40 extend parallel to the imaging surface. The X axis is assigned in the horizontal direction of the imaging surface, and the Y axis is assigned in the vertical direction of the imaging surface.

  The moving body 42 is fixedly provided with a magnet 62x for posture control in the direction around the X axis and a magnet 62y for posture control in the direction around the Y axis. On the other hand, the non-moving body 40 is fixedly provided with a gyro sensor 46, position sensors 48x and 48y, and actuators 60x and 60y.

  The gyro sensor 46 detects the angular velocity of the non-moving body 40 in each of the directions around the X-axis and the Y-axis (here, a two-axis gyro sensor is assumed, but a single-axis gyro sensor is allowed if deterioration in detection performance is allowed. Sensors are also acceptable, and the same applies to other gyro sensors). The position sensor 48x detects the relative position between the non-moving body 40 and the moving body 42 in the X-axis direction, and the position sensor 48y detects the relative position between the non-moving body 40 and the moving body 42 in the Y-axis direction. Each of the position sensors 48x and 48y has a Hall element that detects the magnetism of the magnets 62x and 62y, and detects the relative position by paying attention to the Hall effect. The actuator 60x cooperates with the magnet 62x to change the relative position between the non-moving body 40 and the moving body 42 in the X-axis direction, and the actuator 60y cooperates with the magnet 62y to move the non-moving body 40 and the moving body 42 in the Y-axis direction. Change the relative position.

  The angular velocity information in the direction around the X axis detected by the gyro sensor 46 is given to the adder 54x via the HPF 50x and the calculator 53x provided in the shake correction circuit 47x. In addition to the process of integrating the output of the HPF 50x, the computing unit 53x executes other processes with reference to the position of the moving body 42 and the like.

  The position information detected by the position sensor 48x is given to the adder 54x via the amplifier 52x. The adder 54x adds the angular velocity information given from the HPF 50x and the position information given from the amplifier 52x to each other. The output of the adder 54x is given to the driver 58x as an actuator control signal after passing through the servo filter 56x. The driver 58x drives the actuator 60x based on the supplied actuator control signal. As a result, the orientation of the image sensor 44 is adjusted so that the deviation between the X coordinate of the optical axis and the X coordinate of the center of the imaging surface due to the rotation of the camera casing in the direction around the X axis is suppressed.

  The angular velocity information in the direction around the Y axis detected by the gyro sensor 46 is given to the adder 54y via the HPF 50y and the calculator 53y provided in the shake correction circuit 47y. In addition to the process of integrating the output of the HPF 50y, the computing unit 53y also executes other processes with reference to the position of the moving body 42 and the like.

  The position information detected by the position sensor 48y is given to the adder 54y via the amplifier 52y. The adder 54y adds the angular velocity information given from the HPF 50y and the position information given from the amplifier 52y to each other. The output of the adder 54y is given to the driver 58y as an actuator control signal after passing through the servo filter 56y. The driver 58y drives the actuator 60y based on the supplied actuator control signal. As a result, the orientation of the image sensor 44 is adjusted so that the deviation between the Y coordinate of the optical axis and the Y coordinate of the center of the imaging surface due to the rotation of the camera housing in the direction around the Y axis is suppressed.

  The moving body 42 is also fixedly provided with an acceleration sensor 64. The acceleration sensor 64 detects the acceleration of the image sensor 44 in the X-axis direction and the Y-axis direction (more precisely, the external force urged by the image sensor 44). The lens unit 12 is configured as shown in FIG. 5, and acceleration information in the X-axis direction and acceleration information in the Y-axis direction are given to HPFs 78x and 78y, respectively.

  Referring to FIG. 5, the lens case 70 is fixedly supported by the camera housing, and the focus lens 72 (which may be a lens other than the focus lens) is movably supported by the lens case 70. The focus lens 72 is fixedly provided with a posture control magnet 88x in the direction around the X axis and a posture control magnet 88y in the direction around the Y axis. In contrast, the lens case 70 is fixedly provided with position sensors 74x and 74y and actuators 86x and 86y.

  The position sensor 74x detects the relative position between the lens case 70 and the focus lens 72 in the X-axis direction, and the position sensor 74y detects the relative position between the lens case 70 and the focus lens 72 in the Y-axis direction. Each of the position sensors 74x and 74y has a Hall element that detects the magnetism of the magnets 88x and 88y, and detects the relative position by paying attention to the Hall effect. The actuator 86x cooperates with the magnet 88x to change the relative position between the lens case 70 and the focus lens 72 in the X axis direction, and the actuator 86y cooperates with the magnet 88y to form the lens case 70 and the focus lens 72 in the Y axis direction. Change the relative position.

  The position information detected by the position sensor 74x is supplied to an adder 80x provided in a shake correction circuit 77x after passing through an amplifier 76x. The output of the HPF 78x is given to the adder 80x via the arithmetic unit 79x. In addition to the process of integrating the output of the HPF 78x, the calculator 79x performs other processes with reference to the position of the focus lens 72 and the like.

  The adder 80x adds the acceleration information output from the HPF 78x and the position information provided from the amplifier 76x to each other. The output of the adder 80x passes through the servo filter 82x and is then given to the driver 84x as an actuator control signal. The driver 84x drives the actuator 86x based on the supplied actuator control signal. As a result, the posture of the image sensor 44 is adjusted so that the deviation between the X coordinate of the optical axis and the X coordinate of the center of the imaging surface due to the shift of the camera housing in the X axis direction is suppressed.

  The position information detected by the position sensor 74y passes through the amplifier 76y and is then supplied to an adder 80y provided in the shake correction circuit 77y. The output of the HPF 78y is given to the adder 80y via the arithmetic unit 79y. In addition to the process of integrating the output of the HPF 78y, the computing unit 79y also executes other processes with reference to the position of the focus lens 72 and the like.

  The adder 80y adds the acceleration information output from the HPF 78y and the position information provided from the amplifier 76y to each other. The output of the adder 80y is given to the driver 84y as an actuator control signal after passing through the servo filter 82y. The driver 84y drives the actuator 86y based on the supplied actuator control signal. As a result, the orientation of the image sensor 44 is adjusted so that the shift between the Y coordinate of the optical axis and the Y coordinate of the center of the imaging surface due to the shift of the camera housing in the Y axis direction is suppressed.

Generally, an acceleration sensor is a force sensor, and also detects a force generated by rotation. The detected force is expressed by Equation 1, and the output of the acceleration sensor (= F / m) is expressed by Equation 2.
[Equation 1]
F = ma + mg + mrω ^ 2
m: Weight of the weight provided to the acceleration sensor (constant)
a: Acceleration (acceleration component of shift shake)
g: Gravitational acceleration r: Weight radius of rotation ω: Angular velocity [Equation 2]
F / m = a + g + rω ^ 2

  In order to obtain the acceleration a more accurately, it is necessary to exclude the third term from the output of the acceleration sensor (error due to the gravitational acceleration g is removed as a constant value by HPF). Based on this, in this embodiment, the acceleration sensor 64 is provided not on the non-moving body 40 but on the moving body 42.

  Since the relative posture between the non-moving body 40 and the moving body 42 is corrected based on the angular velocity detected by the gyro sensor 46, the external force urged by the moving body 42 due to the rotation of the camera housing is suppressed, As a result, the value of the third term of Equation 2 is reduced. The relative attitude between the image sensor 44 and the focus lens 72 is corrected based on the output of the acceleration sensor 64.

  That is, camera shake, that is, rotational shake in the directions around the X axis and the Y axis, is suppressed by correcting the relative posture between the non-moving body 40 and the moving body 42, and camera shake, that is, shift shake in the X axis direction and the Y axis direction is captured. This is suppressed by correcting the relative posture between the element 44 and the focus lens 72. As a result, camera shake correction performance is improved.

  In this embodiment, position correction is performed using a magnet and a Hall element. However, position correction may be performed using a stepping motor and a pulse counter, for example.

  In this embodiment, the relative posture between the image sensor 44 and the focus lens 72 is corrected based on the output of the acceleration sensor 64 fixed to the moving body 42. However, since the moving body 42 is movably supported by the non-moving body 40, when an external force is urged to the non-moving body 40 by the shift shake, the relative position between the non-moving body 40 and the moving body 42 changes temporarily. Changes are also detected by position sensors 48x and 48y. That is, the detection result of the position sensor 48x includes an acceleration component indicating the movement of the image sensor 44 due to the shift shake in the X-axis direction. Similarly, the detection result of the position sensor 48y includes an acceleration component indicating the movement of the image sensor 44 due to the shift shake in the Y-axis direction.

  Therefore, the acceleration component included in the output of the amplifier 52x is extracted by the HPF 78x to correct the shift shake in the X-axis direction, and the acceleration component included in the output of the amplifier 52y is extracted by the HPF 78y to correct the shift shake in the Y-axis direction. You may make it do.

  In this case, the sensor unit 14 is configured as shown in FIG. According to FIG. 6, the acceleration sensor 64 is omitted, and the outputs of the amplifiers 52x and 52y are supplied to the HPFs 78x and 78y, respectively. The frequency characteristics of the HPFs 78x and 78y are adjusted so that acceleration components can be extracted from the amplifiers 52x and 52y.

  In these embodiments, the relative position between the image sensor 44 and the focus lens 72 is corrected in order to suppress shift shake. That is, shift shake is suppressed by a so-called optical camera shake correction method. However, the shift shake may be suppressed by a so-called electronic camera shake correction method. In this case, an extraction area for extracting a part of the image data stored in the SDRAM 22 is defined, and the position of the extraction area is moved to a position where shift shake is suppressed.

  Further, in this embodiment, the relative position between the non-moving body 40 and the moving body 42 is corrected based on the output of the gyro sensor 46 fixed to the non-moving body 40, and the relative attitude between the image sensor 44 and the focus lens 72 is detected by the sensor. Corrections are made based on the output of the acceleration sensor 64 provided in the unit 14 or the outputs of the position sensors 48x to 48y.

  However, the gyro sensor 90 and the acceleration sensor 92 are provided in the lens unit 12 as shown in FIG. 7, and the gyro sensor 46 and the acceleration sensor 64 are omitted from the sensor unit 14 as shown in FIG. The rotational shake may be suppressed by correcting the relative posture of the lens, and the shift shake may be suppressed by correcting the relative posture of the focus lens 72 and the image sensor 44.

  According to FIG. 7, the gyro sensor 90 is fixedly provided on the lens case 70, and the acceleration sensor 92 is fixedly provided on the focus lens 92.

  The gyro sensor 90 detects the angular velocity of the lens case 70 in each of the directions around the X axis and the Y axis. Angular velocity information in the direction around the X axis is given to the adder 80x via the HPF 78x and the calculator 79x, and angular velocity information in the direction around the Y axis is given to the adder 80y via the HPF 78y and the calculator 79x. The relative attitude between the lens case 70 and the focus lens 72 is corrected based on the acceleration information output from the HPFs 78x and 78y, thereby suppressing rotational shake.

  The acceleration sensor 92 detects the acceleration of the focus lens 72 in the X-axis direction and the Y-axis direction (more precisely, the external force urged by the focus lens 72). The acceleration information in the X-axis direction and the acceleration information in the Y-axis direction are given to HPFs 50x and 50y shown in FIG. The relative attitude between the focus lens 72 and the image sensor 44 is corrected based on the acceleration information output from the HPFs 50x and 50y, thereby suppressing shift shake.

  Since the focus lens 72 is movably supported by the lens case 70, when an external force is urged to the lens case 70 by the shift shake, the relative position between the lens case 70 and the focus lens 72 temporarily changes. Changes are also detected by position sensors 74x and 74y. That is, the detection result of the position sensor 74x includes an acceleration component indicating the movement of the focus lens 72 due to the shift shake in the X-axis direction. Similarly, the detection result of the position sensor 74y includes an acceleration component indicating the movement of the focus lens 72 due to the shift shake in the Y-axis direction.

  Therefore, the acceleration component included in the output of the amplifier 76x is extracted by the HPF 50x to correct the shift shake in the X-axis direction, and the acceleration component included in the output of the amplifier 76y is extracted by the HPF 50y to correct the shift shake in the Y-axis direction. You may make it do.

  In this case, the lens unit 12 is configured as shown in FIG. According to FIG. 9, the acceleration sensor 92 is omitted, and the outputs of the amplifiers 76x and 76y are respectively supplied to the HPFs 50x and 50y shown in FIG. The frequency characteristics of the HPFs 50x and 50y are adjusted so that acceleration components can be extracted from the amplifiers 76x and 76y.

DESCRIPTION OF SYMBOLS 10 ... Digital camera 12 ... Lens unit 14 ... Sensor unit 40 ... Non-moving body 42 ... Movable body 44 ... Imaging element 46, 90 ... Gyro sensor 48x, 48y ... Position sensor 58x, 58y ... Driver 60x, 60y ... Actuator 64, 92 ... Acceleration sensor

Claims (7)

An imaging means having an imaging surface on which an optical image is irradiated;
A support member for movably supporting the imaging means;
First detection means for detecting movement of the support member in a direction around a predetermined axis;
First correction means for correcting a relative attitude between the support member and the imaging means with reference to a detection result of the first detection means;
Second detection means for detecting an external force biased by the imaging means, and a second correction for correcting a range of an image created based on an output of the imaging means with reference to a detection result of the second detection means. An electronic camera comprising means.   The electronic camera according to claim 1, wherein the second correction unit corrects a relative posture between the lens disposed in front of the imaging surface and the imaging surface.   The electronic camera according to claim 1, wherein the first detection unit corresponds to an angular velocity sensor that detects an angular velocity around the predetermined axis.   The electronic camera according to claim 1, wherein the second detection unit includes an acceleration sensor that detects an acceleration of the imaging unit in a direction along the predetermined axis. The second detection means corresponds to a position sensor for detecting a change in relative position between the support member and the imaging means in a direction along the predetermined axis.
The electronic camera according to claim 1, wherein the second correction unit includes an extraction unit that extracts an acceleration component in a direction along the predetermined axis from an output of the position sensor.   The electronic camera according to claim 1, wherein the predetermined axis includes two axes orthogonal to the optical axis and orthogonal to each other. A lens that irradiates an optical image onto an imaging surface provided in the imaging means
A support member for movably supporting the lens;
First detection means for detecting movement of the support member in a direction around a predetermined axis;
First correction means for correcting a relative posture between the support member and the lens with reference to a detection result of the first detection means;
Second detection means for detecting an external force urged by the lens, and second correction means for correcting a range of an image created based on an output of the imaging means with reference to a detection result of the second detection means An electronic camera.

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