JP2009016995A - Cap, camera system, and imaging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cap used for photography for detecting the position of dust sticking on an imaging element. <P>SOLUTION: Disclosed is the cap 6 to be mounted on a photographing lens, the cap comprising a light source 61 provided on a surface opposed to the photographing lens and a power supply unit 64 supplying electric power to the light source 61. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cap attached to a photographing lens or a lens mount, an imaging device to which the cap is attached, and a camera system including the cap and the imaging device.

Conventionally, various methods have been proposed as a method for detecting the position of foreign matter such as dust and dirt adhering to the surface of a cover glass of an imaging element of an imaging device such as a digital camera. For example, in Patent Document 1 below, a plurality of LEDs that illuminate the image sensor from different directions are provided in the camera body, and the image sensor is provided by the plurality of LEDs in a state where external light incidence into the camera body is blocked or restricted. Illuminate sequentially, and based on the output signal from the imaging device when each LED illuminates, whether or not foreign matter is attached to the imaging device or its vicinity and the position of the attached foreign matter are determined. A camera system is disclosed.
JP 2002-300442 A

  By the way, when installing a light source such as an LED for detecting a dust position in the camera body, it is necessary to secure a space for installing the light source. It is becoming difficult to secure such a space. Moreover, there is a problem that the installation of such a light source increases the price of the camera.

  An object of the present invention is to provide a cap for use in photographing for detecting the position of dust attached to an image sensor or the like, an imaging device to which the cap can be attached, and a camera system including the cap and the imaging device. Is to provide.

  In order to facilitate understanding, the configuration of the present invention will be described with reference to the embodiment, but the present invention is not limited to the configuration of the present embodiment.

  The cap of the present invention is a cap (6) attached to the photographic lens (4), and a light source (61) provided on a surface facing the photographic lens (4), and the light source (61) And a power supply unit (64) for supplying power.

  The cap of the present invention is a cap (6) attached to the lens mount (LM) of the imaging device (2), and a light source (61) provided on the surface facing the imaging element (21). And a power supply unit (64) for supplying power to the light source (61).

  The camera system of the present invention includes a cap (6 ′) of the present invention, an image sensor (21) that images subject light, and a storage unit that stores image data based on an image signal output from the image sensor (21). (22), a mode specifying unit (32) for specifying a dust information acquisition mode, and a cap information specifying unit for specifying cap information when the dust information acquisition mode is specified in the mode specifying unit (32). And an imaging device (2).

  Further, the camera system of the present invention includes a cap (6) of the present invention, an image sensor (21) that images subject light, and a memory that stores image data based on an image signal output from the image sensor (21). A cap information from the cap (6) when a dust information acquisition mode is specified by the unit (22), a mode specification unit (32) for specifying a dust information acquisition mode, and the mode specification unit (32). And an imaging device (2) including a cap information receiving unit (29) for transmitting and a transmitting unit (29) for transmitting a release signal to the cap (6).

  In addition, the imaging apparatus of the present invention includes an imaging device (21) that images subject light, and a storage unit (22) that stores image data based on an imaging signal output from the imaging device (21). The apparatus (2), which is a mode specification unit (32) for specifying a dust information acquisition mode, and when the dust information acquisition mode is specified by the mode specification unit (32), the photographing lens (4) or imaging And a cap information designating unit for designating cap information regarding the cap (6 ′) attached to the lens mount (LM) of the device (2).

  The image pickup apparatus of the present invention includes an image pickup element (21) for picking up subject light, a storage unit (22) for storing image data based on an image pickup signal output from the image pickup element (21), and dust information acquisition. When a dust information acquisition mode is designated by the mode designation unit (32) for designating the mode and the mode designation unit (32), the photographing lens (4) or the lens mount (LM) of the imaging device (2) is designated. A cap information receiving unit (29) that receives cap information regarding the cap (6) that is mounted, and a transmission unit (29) that transmits a release signal to the cap (6).

  According to the cap of the present invention, since the image sensor in the camera body can be illuminated because the light source is provided, the camera body is provided with a light source necessary for acquiring dust position information on the image sensor. This is unnecessary, and the price of the camera can be prevented from becoming expensive. Further, by using the cap of the present invention, dust position information on the image sensor can be easily acquired at any location.

  In addition, according to the camera system of the present invention, dust position information can be acquired using a cap provided with a light source, so that the position of dust can be specified with high accuracy. That is, when acquiring dust position information on the image sensor by photographing a blank sheet or the like, for example, if a shadow is formed on the blank sheet, whether or not the shadow is dust attached to the image sensor in the dust position information. However, according to the camera system of the present invention, the possibility of such a problem is extremely low.

  Further, according to the image pickup apparatus of the present invention, when the dust information acquisition mode is specified, it is possible to specify information related to the photographing lens or the cap mounted on the lens mount of the image pickup apparatus. Therefore, based on the specified cap information, photographing can be performed under conditions necessary for acquiring dust position information, and accurate dust position information can be obtained.

  Further, according to the imaging apparatus of the present invention, when the dust information acquisition mode is designated, the cap information related to the cap mounted on the photographing lens or the lens mount of the imaging apparatus is received, and a release signal is sent to the cap. Can be sent. Therefore, it is possible to set an appropriate shooting condition based on the received cap information, and it is possible to cause the cap light source to emit light in accordance with the imaging timing.

  Hereinafter, a camera system according to a first embodiment of the present invention will be described with reference to the drawings. The camera system according to the first embodiment includes a digital camera (imaging device) body, a photographic lens attached to the digital camera body, and a cap attached to the photographic lens. It may be fixed to the digital camera body or may be an interchangeable photographic lens.

  FIG. 1 is a block configuration diagram of a digital camera body 2 constituting the camera system according to the first embodiment. The digital camera body (hereinafter simply referred to as “camera”) 2 is provided with a CPU 20, which captures the subject light via the photographing lens 4 and picks up an image signal (analog signal as accumulated charge). The image sensor 21 is composed of a CCD, a CMOS, and the like, and the image signal output from the image sensor 21 is A / D converted by an A / D converter (not shown) to generate image data. The image data storage unit 22 for temporarily storing the image data, the display unit 23 configured by an LCD disposed on the back surface of the camera 2 for displaying the image data, and the image data based on the imaging signal output from the imaging device 21 as white An image processing unit 24 that performs image processing such as balance adjustment, contour compensation, and gamma correction, a memory card 25 that stores captured image data, and a power source Power supply circuit 26 for supplying power to the CPU20 or the like from 8, the operation unit 30 having a communication unit 29 and various switches communication between the imaging lens 4 and the lens cap 6 is connected.

  The power supply circuit 26 and the communication unit 29 supply power from the power supply 28 to the photographing lens 4 and are connected to a connector 27 a for communicating with the photographing lens 4. 2 is connected to a connector 27 b for supplying power from the power source 28 and communicating with the lens cap 6.

  Further, the operation unit 30 detects a power switch 31 for turning on / off the power of the camera 2, a photographing mode for photographing a subject, and a position of dust (foreign matter) such as dust attached to the image sensor 21. There are provided a mode setting button 32 and a release switch 33 for setting a mode (dust position information acquisition mode) and the like. When these switches, buttons, and the like are operated, a signal corresponding to the operation is input to the CPU 20, and control according to the input signal is executed.

  FIG. 2 is a block diagram of the photographic lens 4 according to the first embodiment. As shown in FIG. 2, the photographing lens 4 is provided with a CPU 40. The CPU 40 stores a data storage unit 41 that stores lens information such as the optical axis, pupil position, aperture, and diameter of the photographing lens 4. When the photographic lens 4 is attached to the camera 2, a connector 43 connected to the connector 27 a of the camera 2, a power supply circuit 42 that supplies power supplied from the camera 2 to the CPU 40 via the connector 43, and A communication unit 44 that communicates with the camera 2 is connected via the connector 43. In addition, since the connector 27a of the camera 2 and the connector 43 of the photographic lens 4 are connected by attaching the photographic lens 4 to the camera 2, when the power of the camera 2 is turned on, power is supplied to the photographic lens 4. Is started and communication is possible.

  FIG. 3 is a block diagram of the lens cap 6 according to the first embodiment. As shown in FIG. 3, the lens cap 6 is provided with a CPU 60, and the CPU 60 includes a light source 61 such as an LED, an arrangement position of the light source 61 on the lens cap 6, a light emission amount, and a type of light source. A data storage unit 62 that stores information, a connector 65 that is connected to the connector 27b of the camera 2, a communication unit 63 that performs communication with the camera 2 via the connector 65, and the CPU 2 via the connector 65 to the camera 2 A power supply circuit 64 that supplies power supplied from is connected.

  FIG. 4 is a diagram illustrating an example of the lens cap 6 and the photographing lens 4 according to the first embodiment. As shown in FIG. 4, a claw portion 6 a for attaching the lens cap 6 to the photographing lens 4 is provided at the peripheral portion of the surface of the lens cap 6 facing the photographing lens 4. Further, a claw receiving portion 4 a into which the claw portion 6 a is inserted is provided at a peripheral portion of the distal end portion of the photographing lens 4 facing the lens cap 6 at a position facing the claw portion 6 a of the lens cap 6.

  Further, as shown in FIG. 4, a plurality of light sources 61 are arranged on the surface of the lens cap 6 facing the photographing lens 4. Here, in FIG. 4, only three light sources 61 are shown in a straight line in a vertical line, but actually, one light source 61 is further provided on each side of the light source arranged in the center, Five light sources 61 are arranged in a cross shape. Further, the lens cap 6 is provided with a cable 6b connected to the communication unit 63 and the power supply circuit 64, and a connector 65 is provided at the tip thereof.

  Here, when the lens cap 6 is attached to the photographing lens 4, the connector 65 of the lens cap 6 and the connector 27b of the camera 2 are connected together. That is, the connector 27b and the connector 65 provided at the tip of the cable 6b are connected, and the lens cap 6 and the camera 2 are connected via the cable 6b. Since the camera 2 and the lens cap 6 are connected by connecting the connector 65 and the connector 27b, when the power of the camera 2 is turned on, supply of power to the lens cap 6 is started and the camera 2 is also connected. And the lens cap 6 can communicate with each other.

  Next, referring to the flowchart of FIG. 5, the processing in the camera system according to the first embodiment, that is, the camera 2 is mounted with the photographic lens 4 and the photographic lens 4 is mounted with the lens cap 6. The operation of the camera 2 when the lens cap 6 and the camera 2 are connected via the connector 27b and the connector 65 connected to the tip of the cable 6b will be described.

  First, when the camera 2 is turned on by operating the power switch 31 of the camera 2 by the photographer (step S10), the lens cap is connected to the photographing lens 4 via the connector 43 and the power supply circuit 42. 6, power supply from the power supply 28 provided in the camera 2 is started via the connector 65 and the power supply circuit 64, respectively, between the taking lens 4 and the camera 2 and between the lens cap 6 and the camera 2. Each can communicate.

  Next, when the photographer operates the mode setting button 32 to set the mode of the camera 2 to the dust position information acquisition mode (dust information acquisition mode) (step S11), the lens information of the shooting lens 4 is acquired (step S11). S12). That is, the lens information stored in the data storage unit 41 of the photographic lens 4 by communicating between the camera 2 and the photographic lens 4 via the communication unit 29 of the camera 2 and the communication unit 44 of the photographic lens 4. To get. The acquired lens information is stored in a data storage unit (not shown).

  Next, the cap information of the lens cap 6 is acquired (step S13). That is, the lens stored in the data storage unit 62 of the lens cap 6 by performing communication between the camera 2 and the lens cap 6 via the communication unit 29 of the camera 2 and the communication unit 63 of the lens cap 6. Get information. The acquired lens information is stored in a data storage unit (not shown).

  Next, when the photographer turns on the release switch 33 (step S14), a release signal is transmitted to the lens cap 6 via the communication unit 29 of the camera 2 (step S15). In the lens cap 6, when a release signal is received via the communication unit 63, supply of power to the light source 61 is started based on control by the CPU 60, and the light source 61 emits light.

  When the release switch 33 is operated by the photographer (step S15), the light source 61 of the lens cap 6 emits light, and at the same time, an image is taken by the image sensor 21 (step S16). That is, imaging by the imaging element 21 is performed based on imaging conditions determined using lens information and cap information stored in a data storage unit (not shown).

  Next, the image data picked up by the image pickup device 21 is stored as a dust position information image (step S17). That is, when image pickup is performed by the image pickup device 21, image data is generated based on the image pickup signal output from the image pickup device 21, and a dust position information image (image data including dust information) is displayed in the header portion of the image data. Is written and stored in the image data storage unit 22. The image data is read from the image data storage unit 22 and stored in the memory card 25 as a dust position information image. Note that the information indicating that the image is a dust position information image can be stored in a state where it can be distinguished from other image data by setting a predetermined flag on the EXIF tag in the header portion of the image data, for example. Accordingly, the photographer uses the stored dust position information image to remove dust from the image data of the original image obtained by photographing the subject, that is, image data such as a JPEG image that has not been subjected to irreversible compression processing. Can be executed easily.

  The cap according to the first embodiment includes the light source and the communication unit, and can communicate with the camera. Therefore, when performing shooting for detecting the position of dust on the image sensor. The light source of the cap can emit light. Therefore, it is not necessary to provide the camera body with a light source used for photographing for detecting the position of dust on the image sensor, and the price of the camera body can be prevented from becoming expensive.

  Further, according to the camera system according to the first embodiment, the cap having a light source is attached to the photographing lens and the light source provided in the cap emits light so that photographing is performed. Unlike the case of acquiring information, it is possible to specify the position of dust on the photographing lens or the image sensor with high accuracy without being affected by a shadow or the like formed on a blank paper as a subject.

  In the camera system according to the first embodiment described above, direct communication is performed between the camera 2 and the lens cap 6, but between the camera 2 and the lens cap 6 via the photographing lens 4. You may make it communicate by. That is, by enabling communication between the lens cap 6 and the photographing lens 4 and communication between the photographing lens 4 and the camera 2, the lens cap 6 and the camera 2 can be communicated via the photographing lens 4. Communication may be performed.

  Further, the camera 2 and the lens cap 6 are directly connected via the connectors 27 b and 65, and power is directly supplied from the camera 2 to the lens cap 6, but power is also supplied via the photographing lens 4. You may do it. That is, the photographic lens 4 is provided with a connector for supplying power to the lens cap 6, the photographic lens 4 and the lens cap 6 are connected via the connector, and the power supplied from the camera 2 to the photographic lens 4 is supplied. Further, the lens cap 6 may be supplied.

  Next, a camera system according to the second embodiment will be described with reference to the drawings. In addition, the camera which comprises the camera system which concerns on 2nd Embodiment is only the connector 27a connected with the connector 43 of the taking lens 4 among the connectors 27a and 27b with which the camera 2 which concerns on 1st Embodiment is equipped. It is the same structure except having a point. The photographing lens is also the same photographing lens as the photographing lens 4 according to the first embodiment. Accordingly, detailed description of the camera 2 and the photographing lens 4 will be omitted, and in the following description, the same reference numerals as those of the first embodiment will be used.

  FIG. 6 is a block diagram of a lens cap 6 ′ according to the second embodiment. The lens cap 6 'according to the second embodiment will not be described in detail with respect to the same configuration as the lens cap 6 according to the first embodiment, and only different parts will be described. Further, the same configuration as the lens cap 6 according to the first embodiment will be described using the same reference numerals as those used in the first embodiment.

  The lens cap 6 ′ includes a power supply 67 and a power supply circuit 64 that supplies power from the power supply 67 to the CPU 60, and further includes a power switch (power supply SW that corresponds to an instruction unit for instructing start of power supply from the power supply 67. ) 68. In the lens cap 6 ′, the light source 61 can emit light by operating the power supply SW 68.

  FIG. 7 is a flowchart for explaining the operation of the camera 2 constituting the camera system according to the second embodiment of the present invention. In the camera 2 according to the second embodiment, it is assumed that the types of caps that can be used when acquiring dust position information are set in advance.

  First, when the photographer operates the power switch 31 of the camera 2, the power of the camera 2 is turned on (step S20), and the cap information of the lens cap 6 'attached to the photographing lens 4 is input (step S20). Step S21). For example, by operating a menu button (not shown) and selecting information indicating the lens cap 6 ′ attached to the photographing lens 4 on the display unit 23, cap information (position of the light source 61, light emission amount and light source) is selected. Information such as the type of information). The input cap information is stored in a data storage unit (not shown).

  Here, since the lens cap 6 ′ includes the power source SW 68 for instructing the light source 61 to start power supply from the power source 67, the light source 61 can emit light at an arbitrary timing. Accordingly, by operating the power switch 68 at a predetermined timing before imaging for acquiring dust position information in the camera 2, power supply to the light source 61 is started in advance, and the light source 61 is caused to emit light.

  Next, when the photographer operates the mode setting button 32 to set the mode of the camera 2 to the dust position information acquisition mode (step S22), the communication unit 29 of the camera 2 and the communication unit 44 of the photographing lens 4 are switched. Then, communication is performed between the camera 2 and the photographing lens 4 to acquire lens information of the photographing lens 4 (step S23). The acquired lens information is stored in a data storage unit (not shown).

  Next, when the release switch 33 of the camera 2 is operated by the photographer, imaging by the imaging element 21 is performed based on imaging conditions determined using lens information and cap information stored in a data storage unit (not shown). This is performed (step S24), and image data based on the imaging signal output from the imaging device 21 is stored in the memory card 25 as a dust position information image (step S25). Note that the processing in step S24 and step S25 described above is the same as the processing in step S16 and step S17 in the first embodiment, and thus detailed description thereof is omitted.

  According to the cap according to the second embodiment, since the cap includes the light source, it is not necessary to provide the camera body with a light source for detecting the position of dust on the image sensor or the photographing lens. The price of the can be prevented from becoming expensive. Moreover, since it is not necessary to give the cap a communication function, the cost of the cap can be kept low. Furthermore, since the cap includes a light source, image data for easily acquiring dust position information can be obtained even when, for example, there is no blank paper.

  Further, according to the camera system according to the second embodiment, since the photographing lens is attached with a cap having a light source and the light source provided in the cap emits light, photographing is performed on a blank sheet or the like to detect the dust position. Unlike the case of acquiring information, it is possible to specify the position of dust on the photographing lens or the image sensor with high accuracy without being affected by a shadow or the like formed on a blank paper as a subject.

  In the camera system according to the second embodiment described above, information (cap information) indicating what kind of lens cap the lens cap attached to the photographing lens is is input to the camera. The camera may acquire the lens cap attached to the photographic lens by determining on the camera side (photographing lens side). That is, in the nail receiving portion of the photographing lens (see FIG. 4), the type of the lens cap is identified by the shape of the nail portion of the inserted lens cap, and information indicating the mounted lens cap is sent to the camera via the communication portion. You may make it transmit.

  In the camera system according to the above-described embodiment, the dust cap information is acquired by attaching the lens cap to the photographing lens. However, the mount cap attached to the lens mount of the camera is the lens cap (6 or 6 ′), and the dust cap information may be acquired by attaching the mount cap (80, 80 ′). That is, as shown in FIG. 8, a mount cap is attached to the lens mount LM formed on the camera 2, and a light source is emitted to perform imaging to acquire a dust position information image on the imaging device. Good. For example, when the mount cap 80 having the same form as the lens cap 6 according to the first embodiment is attached to the lens mount LM, the release signal is transmitted to the mount cap 80 when the photographer turns on the release switch 33. Then, at the same time as the light source 61 is caused to emit light, the image pickup device 21 performs image pickup, and a dust position information image is acquired. When the mount cap 80 ′ having the same form as the lens cap 6 ′ according to the second embodiment is attached to the lens mount LM, the photographer turns on the power SW 68 of the mount cap 80 ′ to emit the light source 61. Then, by turning on the release switch 33, the image pickup device 21 picks up an image and acquires a dust position information image. In this case, since dust position information on the image sensor can be acquired without attaching a photographic lens, for example, whether or not dust is attached to the image sensor in a production line or the like is confirmed. It can be done easily.

  In the cap according to the above-described embodiment, when the dust position information acquisition mode is set, a plurality of light sources are arranged on the surface facing the photographing lens. The number can be changed arbitrarily. For example, only one light source may be arranged at the center, or a large number of light sources may be arranged in a lattice shape.

  In the camera system according to the above-described embodiment, when the dust position information acquisition mode is set, communication between the photographing lens and the camera cannot be performed and lens information cannot be acquired. Alternatively, if communication between the cap and the camera cannot be performed and the cap information cannot be acquired, a warning that the dust position information image cannot be acquired is displayed. Good. For example, a warning such as “Unable to acquire dust position information” may be displayed on the display unit of the camera.

It is a block block diagram of the digital camera which concerns on 1st Embodiment. It is a block block diagram of the photographic lens which concerns on 1st Embodiment. It is a block block diagram of the lens cap which concerns on 1st Embodiment. It is a figure which shows an example of the lens cap and imaging lens which concern on 1st Embodiment. It is a flowchart for demonstrating operation | movement of the camera which comprises the camera system which concerns on 1st Embodiment. It is a block block diagram of the lens cap which concerns on 2nd Embodiment. It is a flowchart for demonstrating operation | movement of the camera which comprises the camera system which concerns on 2nd Embodiment. It is a figure which shows an example at the time of mounting | wearing the lens mount with the mount cap of this invention.

Explanation of symbols

2 ... digital camera, 4 ... photographic lens, 4a ... claw receiving part, 6, 6 '... lens cap, 6a ... claw part, 6b ... cable, 20 ... CPU , 21 ... Image sensor, 22 ... Image data storage unit, 23 ... Display unit, 24 ... Image processing unit, 25 ... Memory card, 26 ... Power supply circuit, 27a, 27b ... Connector, 28 ... Power supply, 29 ... Communication part, 30 ... Operation part, 31 ... Power switch, 32 ... Mode setting button, 33 ... Release switch, 60 ... CPU 61 ... light source 62 ... data storage unit 63 ... communication unit 64 ... power supply circuit 65 ... connector 67 ... power source 68 ... power SW , 80, 80 '... Mount cap.

Claims (16)

A cap attached to the taking lens,
A light source provided on a surface facing the photographing lens;
A power supply for supplying power to the light source;
A cap characterized by comprising. A cap mounted on the lens mount of the imaging device,
A light source provided on the surface facing the imaging element;
A power supply unit for supplying power to the light source;
A cap characterized by comprising.   The cap according to claim 1, wherein the power supply unit supplies power supplied from the imaging apparatus to the light source.   The cap according to claim 1, wherein the power supply unit supplies power supplied from a power source provided in the cap to the light source.   The cap according to claim 4, further comprising an instruction unit that instructs the light source to start power supply from the power source.   The cap according to claim 1, further comprising a communication unit that performs communication with an imaging device to which the photographing lens is attached.   The cap according to claim 6, wherein the communication unit communicates with the imaging device via the photographing lens.   The cap according to claim 2, further comprising a communication unit that performs communication with the imaging apparatus.   The cap according to claim 6 or 8, wherein the communication unit performs direct communication with the imaging device.   The power supply unit supplies power to the light source when a release signal transmitted from the imaging apparatus is received via the communication unit. The cap according to one item. A cap according to any one of claims 1 to 5,
An image sensor that images subject light, a storage unit that stores image data based on an imaging signal output from the image sensor, a mode specification unit that specifies a dust information acquisition mode, and a dust information acquisition mode in the mode specification unit A camera system comprising: an imaging device including a cap information designating unit for designating cap information in a case where the camera information is designated. A cap according to any one of claims 6 to 10,
An image sensor that images subject light, a storage unit that stores image data based on an imaging signal output from the image sensor, a mode specification unit that specifies a dust information acquisition mode, and a dust information acquisition mode in the mode specification unit A camera system comprising: a cap information receiving unit that receives cap information from the cap and a transmission unit that transmits a release signal to the cap.   The camera system according to claim 11, wherein the cap information includes at least one information among a light emission amount of the light source, a type of the light source, and an arrangement position of the light source.   When the dust information acquisition mode is designated, the image data is stored in the tag area of the image data, together with the image data, that the image data is image data including dust information. The camera system according to any one of claims 11 to 13. An imaging device having an imaging device that images subject light, and a storage unit that stores image data based on an imaging signal output from the imaging device,
A mode designating part for designating a dust information acquisition mode;
A cap information designating unit for designating cap information regarding a cap mounted on a photographing lens or a lens mount of an imaging device when a dust information acquisition mode is designated in the mode designating unit. Imaging device. An image sensor that images subject light; a storage unit that stores image data based on an image signal output from the image sensor;
A mode designating unit for designating a garbage information acquisition mode;
A cap information receiving unit that receives cap information related to a cap mounted on a photographing lens or a lens mount of an imaging device when a dust information acquisition mode is designated in the mode designating unit;
An imaging apparatus comprising: a transmission unit that transmits a release signal to the cap.

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