JP6531667B2 - Adapter device and control method of adapter device - Google Patents

Description

  The present invention relates to an adapter device that can be attached to a camera body by one mounting mechanism and to mount an interchangeable lens by the other mounting mechanism, and to a control method of the adapter device.

  Conventionally, in a camera accessory such as an interchangeable lens or an intermediate adapter detachable from a camera body by a mount mechanism, it is possible to communicate with the camera body unique information corresponding to a photographing lens for imaging object light on an imaging surface of the camera body. The art of camera accessories is disclosed.

  Specific information communicated between the camera body and the camera accessory includes identification data (lens ID, serial number, etc.) of the photographing lens set in advance, optical data such as focal length of the photographing lens, aperture value, etc. In addition to drive data for driving and controlling the photographing lens, data on optical characteristics of the photographing lens is included.

  Patent Document 1 (Japanese Patent Laid-Open No. 2005-278076) discloses a configuration of a conventional digital camera divided into three mechanical elements of a camera body, a mount adapter, and a lens unit. There is disclosed a digital camera technology in which a lens unit whose camera system is not identical can be replaced.

  Further, in Patent Document 1, a memory capable of storing lens data is mounted on a mount adapter as an adapter device, and further, the memory can be updated to make lens units of each company or lens units to be developed in the future. The technology of the digital camera which can respond is disclosed.

JP 2005-278076 A

  However, in a configuration in which any lens unit as described in Patent Document 1 can flexibly correspond to the camera systems of respective companies, there are the following problems.

  In general, camera accessories such as interchangeable lenses and intermediate accessories are detachable from the camera body via a mounting mechanism. The user selects a camera accessory that matches the specifications of the mounting mechanism of the camera body, and mounts these camera accessories on the camera body in accordance with the shooting scene.

  In this case, when the user can attach the camera body and the camera accessory whose specifications of the mounting mechanism match, the entire camera system including the camera body and the camera accessory can fully exhibit its function. There is a risk of misidentifying that there is.

  As disclosed in Patent Document 1, functions of a camera body, a camera accessory, or a camera system including these are being developed, and when all of them do not correspond to new functions, the latest functions are Sometimes it can not be fully demonstrated. In particular, in the digital camera disclosed in Patent Document 1, the camera body, the mount adapter, and the lens unit are mechanically unless the lens data for performing the latest function is updated in the memory mounted on the mount adapter. Even if it is possible to construct an integrated camera, the digital camera as a whole can not exhibit the latest functions.

  However, since the user first tries to mechanically select a camera accessory that can be attached to the camera body, there is a possibility that the detailed function correspondence situation may be misidentified. In addition, many combinations are assumed for the camera body and the camera accessory, and these firmware may be changed later, and the user can change the correspondence of detailed functions depending on the combination of the camera body and the camera accessory. Even if you are aware that it is not easy to understand the detailed contents of the response situation immediately.

  Furthermore, if the specifications of the mounting mechanism are matched to the camera body, camera accessories made by other companies can be attached, but the maker of the camera body supports detailed functions in combination of the camera body and camera accessories made by other companies The situation may not be understood, and the user may not easily grasp the situation.

  Therefore, a notification function is required to enable the user of the camera body, the camera accessory, and the camera system to easily recognize the corresponding state of the detailed function.

  In order to implement the notification function in the camera accessory, it is conceivable to use various existing devices. As one specific example to enable more reliable notification, character display by liquid crystal device can be considered, but it is expensive to mount the liquid crystal device in the camera accessory only to notify the detailed function correspondence status Since the camera accessory has a cylindrical form in accordance with the shape of the lens optical system of the photographing lens, it is difficult to arrange the liquid crystal device on the curved surface of the surface.

  Therefore, it is more efficient to implement the notification function using a light emitting device such as an LED. For example, in the case of an LED, in the type incorporating an IC, it is possible to emit various luminescent colors by the balance of the three primary colors of light, thereby visually notifying the user of a plurality of corresponding situations. Because it is smaller and smaller, it is highly convenient when mounted on a camera accessory.

  It is an object of the present invention to implement a notification function for notifying the user of detailed functional status by mounting a light emitting device in the adapter device, and further various visual responses to the user. Abstract: An adapter device capable of notifying a situation and a control method of the adapter device.

  In order to solve the above problems, the adapter device according to the present invention can be mechanically and electrically mounted to the camera body by the first mounting mechanism and mechanically and electrically replaced by the second mounting mechanism. An adapter device capable of mounting a lens, comprising: a light emitting unit that emits notification light for notifying a user of the correspondence state of a function, an adapter control unit, and an adapter storage unit; The camera is started by receiving power supply from the camera body, and after the start, the first command and the second command are transmitted to the lens control unit of the interchangeable lens, and the first command is transmitted to the lens control unit. When the lens control unit responds, the light emission control is performed to cause the light emitting unit to emit light for a predetermined time, and the first command is generated by the adapter device of the adapter device with respect to the interchangeable lens. Characterized in that it is a command to inquire whether it is possible to store the lens data of the interchangeable lens to the descriptor storage unit.

  Further, the adapter device according to the present invention is characterized in that the second command is a command for querying the interchangeable lens for a lens ID.

  Further, in the adapter device according to the present invention, the adapter control unit may be configured to further respond to the second command when the lens control unit of the interchangeable lens responds to the first command. When the lens control unit of the lens system responds to the lens ID stored in the lens storage unit, the adapter storage unit of the adapter device is referred to based on the lens ID to which the lens control unit of the interchangeable lens responds, The first light emission control is performed on the light emitting unit when the lens data having the same lens ID exists in the unit, and the second light emission control is performed on the light emitting unit otherwise. It is characterized by

  In the control method of the adapter device according to the present invention, the first mounting mechanism can mechanically and electrically mount the camera body and the second mounting mechanism can mechanically mount the interchangeable lens. A method of controlling an adapter device, the adapter device comprising: a light emitting unit that emits notification light for notifying a user of the status of function correspondence; an adapter control unit; and an adapter storage unit; Receiving the supply, the adapter control unit is activated, and after activation of the adapter control unit, the first command and the second command are transmitted to the lens control unit of the interchangeable lens, and the first command is transmitted. When the lens control unit of the interchangeable lens responds, the lens control unit of the interchangeable lens further responds to the second command to the lens storage unit. When responding the stored lens ID, the adapter storage unit of the adapter device is referred to based on the lens ID to which the lens control unit of the interchangeable lens responds, and a lens having the same lens ID in the adapter storage unit The first light emission control is performed on the light emission unit when data exists, and the second light emission control is performed on the light emission unit otherwise. Is a command for inquiring whether or not lens data of the interchangeable lens can be stored in the adapter storage unit of the adapter device to the interchangeable lens, and the second command is the exchange It is assumed that the command is for inquiring the lens ID of the lens.

  According to the present invention, by mounting the light emitting device in the adapter device, the notification function for notifying the user of the detailed function correspondence state is implemented, and further various correspondences visually to the user It is possible to realize an adapter device capable of notifying a situation and a control method of the adapter device.

Block diagram showing the configuration of the camera system Flow chart explaining light emission control of camera accessory Flow chart explaining light emission control of adapter CPU Perspective view of mount conversion adapter

  Hereinafter, as one embodiment of the camera accessory of the present invention, a mount conversion adapter, which is an intermediate accessory interposed between the camera body and the interchangeable lens in the camera system, will be described in detail. The following description of the embodiment is for explaining an example of the adapter device of the present invention, and the present invention is not limited to the present embodiment without departing from the scope of the invention.

  The configuration of a camera system including the camera body, the interchangeable lens, and the mount conversion adapter of this embodiment will be described.

  FIG. 1 is a block diagram showing the configuration of the camera system of this embodiment. In FIG. 1, 10 is a camera body, 20 is an interchangeable lens, and 30 is a mount conversion adapter. The camera body 10, the interchangeable lens 20, and the mount conversion adapter 30 integrally constitute a camera system.

  The camera body 10 and the mount conversion adapter 30 and the interchangeable lens and the mount conversion adapter 30 are mechanically connected by a mount mechanism whose specifications conform to each other. Depending on the intended function of the mount conversion adapter, the specification of the mount mechanism between the two may or may not be the same. If the specification of the mounting mechanism matches between the two parts as between the camera body 10 and the mount conversion adapter 30, both can be mounted. In the mount conversion adapter 30, the camera body 10 side and the interchangeable lens 20 are provided. Even if the specifications of the mounting mechanism differ from one side to another, there is no mechanical problem as long as the camera system can be configured.

  In the camera body 10 shown in FIG. 1, reference numeral 101 denotes a camera CPU, 102 denotes an imaging unit, 103 denotes an image processing unit, 104 denotes a power supply unit, and 105 denotes a camera mount unit.

  The camera CPU 101 performs control for acquiring image data and controls each device in the camera body 10, and performs communication control and drive control with the interchangeable lens 20 mounted on the camera body 10 and the mount conversion adapter 30. .

  The imaging unit 102 includes an image sensor for photoelectrically converting subject light formed by a photographing lens to acquire image data, an A-D converter for digitizing acquired image data, and the like. It plays a role in acquiring image data.

  The image processing unit 103 performs gradation processing, noise removal processing, optical aberration correction processing, and the like of the image data acquired by the imaging unit 102.

  The power supply unit 104 supplies power to each device in the camera body 10, and further supplies power to each device of the interchangeable lens 20 and the mount conversion adapter 30 mounted via the camera mount unit 105.

  The camera mount unit 105 has a mount mechanism whose specifications conform to that of the mount conversion adapter 30, and enables the mount conversion adapter 30 to be mechanically attached to the camera body 10, and the electrical contacts provided in the mount mechanism. Thus, communication with the mount conversion adapter 30 is possible.

  In the interchangeable lens 20 shown in FIG. 1, reference numeral 201 denotes a lens CPU, 202 denotes a lens optical system, 203 denotes a lens ROM, and 204 denotes a lens mount.

  The lens CPU 201 controls each device in the interchangeable lens 20, and performs communication control and drive control with the camera body 10 mounted on the interchangeable lens 20 and the mount conversion adapter 30.

  Lens data unique to the lens optical system 202 of the interchangeable lens 20 is stored in the lens ROM 203. Lens data includes identification data such as model ID and serial number, optical data such as focal length and aperture value of lens optical system 202, and drive data for driving an interchangeable lens. Optical correction data and the like for correcting aberrations in image processing are included.

  The lens mount unit 204 has a mount mechanism whose specifications conform to the mount conversion adapter 30, and enables the interchangeable lens 20 to be mechanically attached to the mount conversion adapter 30, and an electrical contact provided in the mount mechanism. Thus, communication with the mount conversion adapter 30 is possible.

  In the mount conversion adapter 30 shown in FIG. 1, reference numeral 301 denotes an adapter CPU, 302 denotes an adapter ROM, 303 denotes a light emitting unit, 304 denotes an adapter camera side mounting unit, and 305 denotes an adapter lens side mounting unit.

  The mount conversion adapter 30 of the present embodiment is a camera accessory that can mount the camera body 10 and the interchangeable lens 20 having different specifications of the mount mechanism and relay them. In particular, regardless of the difference in the specifications of the mounting mechanism of the camera body 10 and the interchangeable lens 20, as the role of the mount conversion adapter 30, that the interchangeable lens 20 can be mechanically attached to the camera body 10 Support for communication compatibility between the main body 10 and the interchangeable lens 20, and adjustment of the flange back of the interchangeable lens 20 according to the specification of the camera body 10 to be mounted can be mentioned.

  The adapter CPU 301 performs processing including substitution and conversion of commands and data communicated between the camera CPU 101 and the interchangeable lens 20 in order to ensure communication compatibility between the camera CPU 101 and the lens CPU 201. Also, based on the data communicated between the camera CPU 101 and the lens CPU 201, the light emitting unit 303 for appropriately notifying the user of the correspondence state of the function of the mount conversion adapter 30 is appropriately controlled.

  The adapter ROM 302 stores the same lens data as the lens optical system 202 specific to the lens optical system 202 stored in the lens ROM 203 of the interchangeable lens 20. The lens data stored in the adapter ROM 302 is lens data that includes a lens ID and can correspond to more advanced functions than similar lens data stored in the lens ROM 203. That is, in addition to the lens data stored in the lens ROM 203, the lens data stored in the adapter CPU 302 is, for example, a more advanced optical aberration correction data or an image which is a new function of the imaging unit 102 of the camera body 10. Optical aberration correction data capable of coping with the surface phase difference AF is expanded.

  Here, the mount conversion adapter 30 can mount various interchangeable lenses conforming to the specification of the mount mechanism, and the lens optical system is changed by the mounted interchangeable lens. It is possible to store one or more lens data in the case of assuming a lens optical system of a possible interchangeable lens.

  It is preferable that lens data stored in the adapter ROM 302 can be changed later according to the situation. In this specific situation, there is a situation where, when it is desired to secure the storage capacity of the adapter ROM 302, the lens data not used is deleted, or the lens data corresponding to the lens optical system of the newly developed interchangeable lens is added. is assumed. The lens data stored in the adapter ROM 302 can be changed using an external computer, camera body, etc. using the electrical contacts of the mount, or using a dedicated connector for changing lens data. It is.

  By making it possible to store a plurality of extended lens data in the adapter ROM 302, the interchangeable lens 20 mountable to the mount conversion adapter 30 can be made compatible with more advanced optical aberration correction and new functions of the camera body 10, respectively. The plurality of interchangeable lenses 20 can be collectively compatible with new functions only by updating the lens data of the adapter ROM 302 of the mount conversion adapter 30 without individually updating the lens data stored in the lens ROM 203 of the interchangeable lens 20 of It can be done.

  The light emitting unit 303 is a light emitting device for notifying the user of the correspondence state of the function of the mount conversion adapter 30. In this embodiment, the light emitting device of the light emitting unit 303 is specifically an LED. The LED is packaged with an LED that emits three primary colors of light and an IC that controls the emission of light, and can emit light of various colors in a space-saving manner. In the present embodiment, the user is notified of the status of the function of the mount conversion adapter 30 using a plurality of light emission states by the LEDs.

  Next, light emission control of the light emitting unit 303 by the adapter CPU 301 will be described with reference to FIG.

  In the camera system according to the present embodiment, when the power of the camera body 10 is turned on, the camera CPU 101 of the camera body 10, the lens CPU 201 of the interchangeable lens 20, and the adapter CPU 301 of the mount conversion adapter 30 from the power supply unit 104 of the camera body. Power supply of appropriate voltage to each CPU is started. These CPUs receive power supply and perform activation, and perform the next initial communication.

  First, in step 1, the adapter CPU 301 instructs the camera CPU 101 to wait for communication. This is to wait for communication between the adapter CPU 301 and the camera CPU 101 until the adapter CPU 301 determines the type of the interchangeable lens 20 in the initial communication and completes the light emission control of the light emitting unit 303.

  Next, in step 2, the adapter CPU 301 inquires of the lens CPU 201 whether or not lens data of the lens optical system 202 of the attached interchangeable lens 20 can be stored in the adapter ROM 302 of the mount conversion adapter 30. A command (corresponding command) and a command (lens ID command) for inquiring the lens ID stored in the lens ROM 203 of the interchangeable lens 20 are issued.

  The corresponding command is a command for inquiring the lens CPU 201 whether or not lens data of the lens optical system 202 of the interchangeable lens 20 mounted on the mount conversion adapter 30 can be stored in the adapter ROM 302. When issuing the corresponding command, it does not matter whether lens data regarding the lens optical system 202 of the interchangeable lens 20 is actually stored in the adapter ROM 302 or not.

  The lens data stored in the adapter ROM 302 is created based on the lens design data of the lens optical system 202, and must be described according to a predetermined format, and only the specification of the mount mechanism is matched. Even in the case of an interchangeable lens that can be mechanically mounted by some means, lens data of the interchangeable lens may not necessarily be stored. For example, even if the interchangeable lens 20 is mechanically attachable to the mount conversion adapter 30, the maker of the mount conversion adapter 30 can not create lens data based on lens design data. In the case of an interchangeable lens manufactured by another company equipped with a lens optical system, it is fundamentally impossible to store lens data of these interchangeable lenses in the adapter ROM 302 of the mount conversion adapter 30.

  Next, in step 3, in response to the corresponding command from the adapter CPU 301 and the lens ID command, the lens CPU 201 sends an answer to the adapter CPU 301 about the support status of the mount conversion adapter 30 and the answer of the lens ID stored in the lens ROM 203. Send

  Next, in step 4, the adapter CPU 301 receives the response status to the mount conversion adapter 30 and the lens ID transmitted from the lens CPU 201, and performs light emission control of the light emitting unit 303 based on these. That is, light emission control is performed to turn on the light emitting unit 303 when the support status with respect to the mount conversion adapter 30 is OK, and light emission control is performed to turn off the light emitting unit 303 in the case of NG. Furthermore, in light emission control for lighting the light emitting unit 303, light emission control is performed to switch the light emission color according to the lens ID.

  In the present embodiment, when the response to the mount conversion adapter 30 is OK, light emission control is performed to turn on the light emitting unit 303, and light emission control is performed to switch the light emission color according to the lens ID. That is, when light emission control for turning on the light emitting unit 303 is performed, the adapter CPU 301 uses the lens ID received from the lens CPU 201 as a key, refers to the adapter ROM 302 storing one or more lens data, and receives the data from the lens CPU 201 It is searched whether the same lens ID as the lens ID is present, and if so, the light emitting unit 303 emits green light, and if it does not exist, the light emitting unit 303 emits orange light.

  By switching the color of the light emitting unit 303 of the mount conversion adapter 30 to emit light as described above, lens data corresponding to the lens optical system 202 of the mounted interchangeable lens 20 is stored in the adapter ROM 302 for the user. In addition, it can be notified together that the mount conversion adapter 30 is compatible with the storage of lens data, and visually prompting the lens ROM 302 to store the lens data. In addition to the light emission control in which the color of the light emitting unit 303 is switched to emit light, the light emission control may be changed by causing the light emitting unit 303 to blink instead of lighting it.

  Next, in step 5, the adapter CPU 301 terminates the light emission control of the light emitting unit 303 after a predetermined time has elapsed, cancels the communication standby instruction for the camera CPU 101 performed in step 1, and communicates with the camera CPU 101 To start. Thus, the light emission control of the light emitting unit 303 by the adapter CPU 301 is completed.

  Next, a control method of the adapter CPU 301 of this embodiment will be described with reference to FIG.

  FIG. 3 is a flow chart showing a control method of the adapter CPU 301. As shown in FIG.

  First, in step S01, the adapter CPU 301 receives power supply from the power supply unit 104 of the camera body 10 and starts up.

  Next, in step S02, the adapter CPU 301 starts initial communication. The initial communication also includes an instruction to wait for communication with the camera CPU 101 of the camera proper 10.

  Next, in step S03, the adapter CPU 301 transmits two commands, a corresponding command and a lens ID command, to the lens CPU 201 of the interchangeable lens 20.

  Next, in step S04, the adapter CPU 301 determines whether or not there is a response from the lens CPU 201 to the corresponding command. When there is a response from the lens CPU 201 to the corresponding command in step S04, the process shifts to light emission control for lighting the light emitting unit 303.

  Before turning on the light emitting unit 303, in step S06, the adapter CPU 301 receives the lens ID transmitted by the lens CPU 201 in response to the lens ID command, and in the lens data stored in the adapter ROM 203 using this lens ID as a key. It is searched whether there is lens data having the same lens ID.

  If lens data having the same lens ID as the lens ID received from the lens CPU 201 exists in the lens data stored in the adapter ROM 203 in step S06, the adapter CPU 301 instructs the user to the camera system in step S07. In order to notify that it can exhibit a complete function, the light emission control which makes the light emission part 303 light green is performed. In other cases, in step S08, light emission control is performed to turn on the light emitting unit 303 in orange, and the mount conversion adapter 30 has the potential to exert the full function of the camera system to the user. It is notified that lens data for that purpose has not been stored in the adapter ROM 203 yet. As a result, even if lens data for exerting the function of the camera system is not stored in the adapter ROM 203, the lens data necessary for the user is updated by the light emission control of the light emitting unit 303 of the adapter CPU 301. Can encourage people to

  Here, going back to step S04, when there is no response from the lens CPU 201 to the corresponding command, the adapter CPU 301 performs light emission control not to light the light emitting unit 303 in step S09. As a specific mode when there is no response from lens CPU 201 to the corresponding command, there is no signal from lens CPU 201 for the corresponding command, or there is a signal different from the signal expected by adapter CPU 301, etc. is assumed. In any case, when the lens CPU 201 does not appropriately respond to the corresponding command transmitted by the adapter CPU 301, the adapter CPU 301 determines that there is no response.

  Next, in step S10, the adapter CPU 301 controls the light emission of the light emitting unit 303 in each of steps S07, S08, and S09, and then maintains the light emission control until a predetermined time elapses. The content of the notification by the light emission control of the light emission unit 303 notifies the user of the correspondence status of the detailed functions of the camera system, and the correspondence status does not update the lens data stored in the adapter ROM 302 As long as it does not change during use, the light emission control of the light emitting unit 303 is stopped after a predetermined time has elapsed since the start of the camera body 10.

  Next, in step S11, after checking that the predetermined time has elapsed in step S10, if the light emitting unit 303 is turned on, the adapter CPU 301 ends the lighting.

  Thus, in step S12, the adapter CPU 301 ends the light emission control of the light emitting unit 303. At the end of the light emission control in step S12, the adapter CPU 301 cancels the communication standby instruction issued to the camera CPU 101, and starts communication with the camera CPU 101.

  Next, the configuration of the mount conversion adapter 30 of the present embodiment will be described using FIG.

  FIG. 4 is an external view of the mount conversion adapter 30. As shown in FIG. Denoted at 306 is an appearance member, 306a is a through hole formed in the appearance member 306, 304 is an adapter camera side mount portion, and 305 is an adapter lens side mount portion.

  The through hole 306 a is an opening formed in the appearance member 306 so that light for notifying the user can pass from the light emitting unit 303 disposed in the internal mechanism of the mount conversion adapter 30 to the outside.

  The adapter camera side mount unit 304 and the adapter lens side mount unit 305 are mechanisms for mechanically and electrically connecting the mount unit 100 of the camera body 10 and the mount unit 100 of the interchangeable lens 20 with the mount mechanism.

  The dotted line in FIG. 4 indicates the optical axis of the mount conversion adapter 30. The optical axis of the mount conversion adapter 30 coincides with the optical axis of the camera body 10 and also coincides with the optical axis of the interchangeable lens 20. Specifically, the optical axis of the camera body 10 is an axis passing vertically through the center of the image sensor constituting the imaging unit 102 of the camera body 10, and the optical axis of the interchangeable lens 20 is specifically the light of the lens optical system 202 of the interchangeable lens 20. It is an axis.

  As described above, according to the present invention, by mounting the light emitting device in the adapter device, the notification function for notifying the user of the detailed function correspondence status is implemented, and the user is further provided with the notification function. It is possible to provide an adapter device and a control method of the adapter device capable of visually notifying various correspondence situations.

10 Camera body 101 Camera CPU
102 imaging unit 103 image processing unit 104 power supply unit 105 camera mount unit 20 interchangeable lens 201 lens CPU
202 lens optical system 203 lens ROM
204 Lens mount section 30 mount conversion adapter 301 adapter CPU
302 Adapter ROM
303 light emitting unit 304 adapter camera side mounting unit 305 adapter lens side mounting unit 306 appearance member 306 a through hole

Claims (4)

An adapter device that can be mechanically and electrically mounted to a camera body by a first mounting mechanism and mechanically and electrically mount an interchangeable lens by a second mounting mechanism.
A light emitting unit that emits notification light for notifying the user of the status of function correspondence, an adapter control unit, and an adapter storage unit;
The adapter control unit is activated by receiving power supply from the camera body, transmits a first command and a second command to the lens control unit of the interchangeable lens after activation, and transmits the first command to the first command. On the other hand, when the lens control unit of the interchangeable lens responds, the light emission control is performed to cause the light emitting unit to emit light for a predetermined time.
The first command is a command for inquiring whether the lens data of the interchangeable lens can be stored in the adapter storage unit of the adapter device with respect to the interchangeable lens. Adapter device.   The adapter device according to claim 1, wherein the second command is a command for inquiring a lens ID of the interchangeable lens. When the lens control unit of the interchangeable lens responds to the first command, the adapter control unit further stores the lens control unit of the interchangeable lens in the lens storage unit in response to the second command. If you want to respond to the lens ID
The adapter storage unit of the adapter device is referred to based on the lens ID to which the lens control unit of the interchangeable lens responds, and when there is lens data having the same lens ID in the adapter storage unit, 3. The adapter device according to claim 1, wherein the first light emission control is performed, and in the other case, the second light emission control is performed on the light emitting unit. A control method of an adapter device that can be mechanically and electrically mounted to a camera body by a first mounting mechanism and can mechanically and electrically mount an interchangeable lens by a second mounting mechanism.
The adapter device includes a light emitting unit that emits notification light for notifying the user of the status of function correspondence, an adapter control unit, and an adapter storage unit.
By receiving power supply from the camera body, the adapter control unit is activated, and after activation of the adapter control unit, a first command and a second command are transmitted to the lens control unit of the interchangeable lens, and When the lens control unit of the interchangeable lens responds to command 1 and when the lens control unit of the interchangeable lens responds to the second command, the lens ID stored in the lens storage unit Refers to the adapter storage unit of the adapter device based on the lens ID to which the lens control unit of the interchangeable lens responds, and in the case where lens data having the same lens ID exists in the adapter storage unit, the light emitting unit And the second light emission control is performed to the light emitting unit in the other cases.
The first command is a command for inquiring whether the lens data of the interchangeable lens can be stored in the adapter storage unit of the adapter device with respect to the interchangeable lens, and the second command A control method of an adapter device, wherein the command is a command for inquiring a lens ID of the interchangeable lens.

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