JP6257146B2 - Imaging apparatus, image processing apparatus, and image processing method - Google Patents

Description

The present invention relates to an imaging apparatus, an image processing apparatus, and relates to an image processing how.

  In an imaging system consisting of an interchangeable lens and a camera body to which it can be attached and detached, the camera CPU of the camera body transmits a drive command for the imaging optical system of the interchangeable lens based on information from the lens CPU of the interchangeable lens and captures an image. Perform image processing.

  There has also been proposed an imaging system in which an extender is built into the interchangeable lens so that it can be inserted into and removed from the optical path. For example, Patent Document 1 discloses an imaging system in which an extender is provided on the image side of a zoom lens so that the extender can be inserted into and retracted from the optical path, and zooming is performed in a range different from the zooming range of only the zoom lens. Japanese Patent Application Laid-Open No. 2005-228688, when detecting the change of the magnification of the extender, moves the zoom lens so that the focal lengths match before and after the change and automatically switches the extender magnification when the zoom lens reaches the wide end or the tele end. A system is disclosed.

Japanese Patent Laid-Open No. 02-079810 JP 2001-51183 A

  The built-in extender is inserted into and removed from the optical path when the user mechanically operates an operation unit such as a lever provided on the lens barrel of the interchangeable lens. When the extender is inserted into and removed from the optical path, the optical characteristics such as the focal length, brightness, and aberration of the photographing optical system change. The camera CPU acquires the unique information of the photographing optical system from the lens CPU through communication performed when the camera is mounted or when the power is turned on, and sets the acquired information in the memory in the camera body.

  If the extender is not built-in, when an interchangeable lens with an extender is attached to the camera body and the power is turned on, communication is performed and the camera CPU recognizes the unique information of the imaging optical system including the extender. The unique information does not change thereafter.

  However, in the case of the built-in extender, when it is inserted into and removed from the optical path, the optical characteristics of the photographing optical system recognized by the camera CPU are instantaneously changed. In the above publication, it is assumed that the camera body is equipped with an interchangeable lens that incorporates an extender. However, such an interchangeable lens is attached to a camera body that is not intended to be equipped with an interchangeable lens that incorporates an extender. May be installed. In this case, since the camera body cannot grasp the change in the optical characteristics of the interchangeable lens due to the insertion / extraction of the extender, image processing including lens driving of the focus lens and the peripheral light amount correction on the photographed image cannot be performed correctly. This problem also applies to optical units other than extenders (for example, optical filters).

The present invention relates to an imaging apparatus capable of preventing troubles which may occur if the insertion of the optical unit is performed, the exemplary object to provide an image processing apparatus, and image processing how to.

The image processing apparatus according to one aspect of the present invention, by imaging using an imaging device lens apparatus is detachably mounted with an optical unit to vary the optical characteristics of the imaging optical system by being insertion with respect to the optical path The obtained image, the first information that is information of the lens device that changes due to the insertion and removal of the optical unit at the time of capturing the image, and the optical unit in the lens device that the imaging device has acquired from the lens device It gets a lens ID for identifying the insertion state of the said first information and based on the lens ID updates the lens ID, the lens device the image using the updated lens ID of It is characterized in that image processing is performed.

  According to the present invention, it is possible to provide an imaging apparatus, an image processing apparatus, an image processing method, and an imaging system that can prevent a trouble that may occur when the optical unit is inserted and removed.

It is a block diagram of the imaging system of this embodiment. It is a flowchart which shows operation | movement of camera CPU when the extender shown in FIG. 1 is inserted / extracted. Example 1 It is a flowchart as a modification of FIG. Example 1 It is a flowchart which shows operation | movement of the imaging | photography system shown in FIG. (Example 2)

  FIG. 1 is a block diagram of the photographing system of the present embodiment. The photographing system includes an interchangeable lens (lens device) 110 and a single-lens reflex digital camera (hereinafter referred to as “camera body 150”). The camera body 150 can be connected to a personal computer (PC) 200 via a cable such as a USB cable 170, and can be connected to a network 250 such as the Internet, LAN, or WAN via the PC 200 or wireless communication 180. Is possible. Another PC 300 connected to the network 250 can be used as cloud computing.

  The interchangeable lens 110 is detachably attached to a camera body (imaging device) 150 via a mount (not shown), and the camera body 150 and the interchangeable lens 110 can communicate information via communication terminals 156 and 134. . The interchangeable lens 110 is also supplied with power from the camera body 150 via the communication terminals 156 and 134.

  The interchangeable lens 110 transmits optical information (information such as the current focal length, F value, focus sensitivity, focus correction amount, etc.), characteristic information, and other information, which are unique information, to the camera body 150. This unique information includes the type, name, and control program version of the interchangeable lens 110. Similarly, the interchangeable lens 110 receives unique information of the camera body 150, for example, the type of the camera body 150, the name of the camera body 150, and the version of the control program of the camera body 150.

  “Optical information” means optical unique information that changes according to the state of zoom, focus, aperture blades, and the like. “Characteristic information” is basically unique information that does not change depending on the state, for example, the name of the interchangeable lens 110 (lens ID information for specifying the model), the maximum communication speed, the open F value, and whether it is a zoom lens. Or information such as image height that can be automatically focused (AF). However, as will be described later, when the extender 120 is inserted into and retracted from the optical path, the open F value changes by the magnification of the extender. In this case, the open F value is handled as information that changes as the extender 120 is inserted and retracted, and is used to appropriately grasp the optical characteristics of the photographing optical system by associating it with a lens ID described later. The other information includes information such as an operation state, a setting state, various information request commands (transmission requests), and drive commands.

  When the camera body 150 acquires characteristic information and optical information unique to the interchangeable lens 110, the camera body 150 can appropriately perform AF, auto exposure (AE), image correction, and the like.

  The interchangeable lens 110 includes a photographing optical system, various driving units, a lens CPU 130, and a memory 132.

  The photographing optical system forms an optical image of an object (subject), and includes a focus lens 112, a variable power lens (zoom lens) 114, a diaphragm 116, and a correction lens 118 along the optical axis OA in order from the object side. Although each lens has one or a plurality of lenses and is unitized, FIG. 1 shows a single lens for simplicity.

  The focus lens 112 is moved in the direction of the optical axis OA by a driving unit (not shown) (for example, a stepping motor) to adjust the focus. During AF, the driving means is driven by the focus driving circuit 141 and is controlled by the lens CPU 130. The focus lens 112 is driven by a user manually operating the MF drive unit 140 such as a focus ring during manual focus adjustment (manual focus (MF)).

  The variable magnification lens 114 is moved in the optical axis direction by a driving unit (not shown) to change the focal length.

  The diaphragm 116 adjusts the amount of light incident on the image sensor 165 of the camera body 150, and the diaphragm blades that change the size of the aperture diameter (diaphragm diameter) are driven by the diaphragm drive circuit 142.

  The correction lens 118 is moved in a direction orthogonal to the optical axis OA by the IS drive circuit 144 to correct image blur. The “perpendicular direction” only needs to have a component orthogonal to the optical axis OA, and may be moved obliquely with respect to the optical axis OA.

  The extender (optical unit) 120 can be inserted into or retracted from the optical path of the photographing optical system by an extender operating member (not shown). The extender operation member can be manually operated by the photographer.

  The extender 120 is a built-in extender built in the interchangeable lens 110. The detection means 145 detects that the extender 120 has been inserted / removed (that is, inserted and retracted) with respect to the optical axis OA of the photographing optical system, and transmits the detection result to the lens CPU 130.

  The extender 120 can be moved (inserted / removed) between a position on the optical path of the photographic optical system and a position outside the optical path without attaching or detaching the interchangeable lens 110 and the camera body 150, and the optical characteristics of the photographic optical system are made different (specifically). In other words, the optical unit changes the focal length range of the entire system. FIG. 1 shows a state in which the extender 120 is retracted from the optical axis OA. It is also possible to provide a drive circuit for driving the extender 120 and automatically move the extender 120.

  In addition, there is an optical filter as an optical unit that moves between a position on the optical path of the photographing optical system and a position outside the optical path without attaching / detaching the interchangeable lens 110 and the camera main body 150 to change the brightness. Examples of such an optical filter include a polarizing filter, an ND filter, a sharp cut filter, and an ultraviolet filter.

  The lens CPU 130 is constituted by a microcomputer, and is a lens control unit that controls each part of the interchangeable lens 110 and can communicate with the camera CPU 152. The lens CPU 130 stores characteristic information and optical information unique to the interchangeable lens 110, a program related to the control method, and values necessary for the memory 132 in the memory 132. “Optical information” includes focus lens 112 sensitivity information, focus correction amount information, and the like obtained from a matrix such as the position of the focus lens 112, the position of the zoom lens 114, and the state of the diaphragm 116. For example, the memory 132 stores the first unique information of the photographing optical system when the extender 120 is inserted into the optical path of the photographing optical system and the second unique information of the photographing optical system when retracted. save.

  In addition, the interchangeable lens 110 is provided with a switch for selecting AF or manual focus adjustment (MF). The state of the switch is also communicated via communication terminals 134 and 156.

  The camera body 150 includes a release button 151, a camera CPU 152, a memory 154, a memory card 155, an image processing circuit 158, a main mirror 160a, a sub mirror 160b, a finder optical system, a shutter 164, and an image sensor 165.

  When the release button 151 is half-pressed, the SW1 signal is output to the camera CPU 152 from a detection unit (not shown) that detects the release button 151. When the release button 151 is fully pressed, the SW2 signal is output to the camera CPU 152. The Here, a state in which the user keeps the release button 151 half-pressed is referred to as a SW1 holding state, and a state in which the release button is pressed is referred to as a SW2 holding state. When the half-press of the release button 151 is released, the SW1 release signal is output from the detection unit to the camera CPU 152. When the release button 151 is released fully, the SW2 release signal is output from the detection unit to the camera CPU 152. Is done. The shooting preparation operation (focus adjustment operation and photometry operation) is started by the SW1 signal, and the shooting operation is started by the SW2 signal. For example, the continuous shooting preparation operation is started by the SW1 signal, and the continuous shooting operation is started by the SW2 signal.

  The camera CPU 152 is an imaging device control unit that is configured by a microcomputer and controls each part of the camera body 150, communicates with the lens CPU 130, and transmits various commands to the lens CPU 130.

  The memory 154 stores unique information of the photographing optical system (including unique information of the photographing optical system after the extender 120 is inserted and removed) and values used in various photographing modes. More specifically, the memory 154 functions as a storage unit that stores correspondence information between the characteristic information received from the lens CPU 130 and information that changes due to insertion and withdrawal (insertion / removal) of the optical unit. As will be described later, the camera CPU 152 updates the characteristic information based on information that changes due to insertion and withdrawal (insertion / removal) of the optical unit and correspondence information.

  The memory card 155 is a recording unit that records captured images, such as an SD card, and is configured to be detachable from the camera body 150.

  The image processing circuit 158 performs image processing such as gamma correction and color gain correction on a signal obtained by digitizing the output (analog signal) of the image sensor 165 by an A / D converter (not shown). In the image processing, optical information and characteristic information of the interchangeable lens 110 are used, and the camera CPU 152 gives the information stored in the memory 154 to the image processing circuit 158.

  The main mirror 160a and the sub mirror 160b are configured to be displaceable between a mirror down state shown in FIG. 1 and a mirror up state (not shown). The main mirror 160a and the sub mirror 160b are arranged on the optical axis OA in the mirror-down state, and in the mirror-up state, the main mirror 160a and the sub mirror 160b are retracted from the optical axis OA so that the light from the object reaches the image sensor 165.

  The main mirror 160a is composed of a half mirror. In the mirror-down state, a part of the light from the object is reflected by the finder optical system so that it can be observed by the user, and the remaining light is transmitted and transmitted to the sub mirror 160b. The sub mirror 160b reflects light from the object to the AF sensor 161 in the mirror down state. The present embodiment is also applicable to a mirrorless camera that does not have a main mirror 160a and a sub mirror 160b. The viewfinder optical system includes a pentaprism 162 and a viewfinder 163, and allows the user to observe the subject.

  The AF sensor 161 is a so-called phase difference type focus detection unit that detects a phase difference by detecting a phase difference between signals of a pair of subject images, and the camera CPU 152 performs AF based on the detection result of the AF sensor 161. (Phase difference AF). In the case of a mirrorless camera, phase difference AF can be performed using some pixels of the image sensor.

  When AF is selected, the camera CPU 152 calculates the driving amount of the focus lens 112 for obtaining a focused state based on the detection result of the AF sensor 161. The camera CPU 152 transmits the calculated driving amount of the focus lens 112 to the lens CPU 130, and the lens CPU 130 controls the lens driving circuit 106 in accordance with this to drive the focus lens 112 to the in-focus position. When MF is selected, the user operates the driving unit 126 to drive the focus lens 112 to a predetermined position.

  In response to a half-press operation of the release button 151, the camera CPU 152 calculates a driving amount of the diaphragm 116 according to a photometric result by a photometric sensor (not shown) or an aperture value set by the user, and transmits the driving amount to the lens CPU 130. The lens CPU 130 drives the diaphragm 116 by controlling the diaphragm driving circuit 142 according to this.

  The camera CPU 152 transmits an image blur correction start command to the lens CPU 130 in response to the half-press operation of the release button 151. When the lens CPU 130 receives the image blur correction start command, the lens CPU 130 controls the drive circuit 144 to hold the correction lens 118 at the control center position, and then controls the lock drive circuit 143 to drive the mechanical lock 117 to set the lock state. To release. Thereafter, the correction circuit 118 is driven by controlling the drive circuit 144 according to the detection result of a camera shake detection circuit (not shown) to correct the image blur.

  The camera CPU 152 drives the shutter 164 installed in front of the main mirror 160 and the image sensor 165 in response to the full press operation of the release button 151, guides the light flux from the imaging optical system to the image sensor 165, and performs imaging. .

  The imaging element 165 is configured by a photoelectric conversion element such as a CCD sensor or a CMOS sensor. The camera CPU 152 generates image data based on the output from the image sensor 165 and records it on a recording medium. Here, the image to be shot is a still image if the still image shooting mode is selected by a mode selection switch (not shown), and a moving image if the moving image shooting mode is selected. Alternatively, a recording start button for moving image shooting may be provided separately, and the recording of the moving image may be started when the button is pressed.

  Examples of the present invention will be described below.

  In each embodiment, the camera body 150 is not originally compatible with the interchangeable lens 110 with the extender 120 built therein. That is, the camera body 150 communicates with the interchangeable lens 110 when the interchangeable lens 110 is attached, acquires the optical information and characteristic information of the interchangeable lens 110, and stores them in the memory 154. This type of camera body acquires a lens ID only during initial communication. This is because it is assumed that the lens ID does not change thereafter.

  However, when an optical unit such as the extender 120 or an optical filter is inserted into or removed from the optical path of the photographing optical system, the lens ID changes, and an image including lens driving of the focus lens 112 and the peripheral light amount correction to the photographed image is obtained. Processing cannot be performed correctly. That is, the camera body 150 that does not correspond to the interchangeable lens 110 communicates with the interchangeable lens 110 each time the optical unit is inserted into and removed from the optical path of the photographing optical system, acquires the lens ID, and stores the memory 154. Means a camera body that is not configured to update the information.

  In each embodiment, by updating the firmware (software) stored in the memory 154 of the camera body 150, the camera body 150 is made to correspond to the interchangeable lens 110 incorporating the optical unit. For example, the firmware may be updated by connecting the camera body 150 to the PC 200 via the USB cable 170 and downloading an update program distributed from the PC 300 via the network 250. Of course, a recording medium such as a DVD-ROM in which an update program is stored may be inserted into the PC 200.

  FIG. 2 is a flowchart of the first embodiment for explaining the operation of the camera CPU 152 when the extender 120 is inserted / removed. “S” indicates a step, “Y” indicates Yes (yes), and “N” indicates No ( No). The flowchart shown in FIG. 2 can be embodied as a program for causing a computer to execute the function of each step. These are the same in the flowcharts of FIGS.

  When the camera CPU 152 determines that the interchangeable lens 110 is attached to the camera body 150 (S101), the camera CPU 152 communicates with the lens CPU 130 to acquire the lens ID of the interchangeable lens 110 (S102). If the interchangeable lens 110 is not attached to the camera body 150, the determination in S101 is repeated.

  Here, as an example, it is assumed that two external extenders (not shown) of x1.4EXT127 and x2.0EXT128 can be attached to the interchangeable lens 110. If the interchangeable lens 110 and the camera body 150 are already mounted when the external extender is mounted, the interchangeable lens 110 is removed from the camera body 150. The external extender is attached to the interchangeable lens 110 (usually on the camera body side of the interchangeable lens 110), and then the interchangeable lens 110 is attached to the camera body 150. In other words, unlike the built-in extender, when the external extender is attached or detached, the interchangeable lens must be removed from the camera body. When the external extender is attached, detection means (not shown) detects it, and the lens CPU 130 recognizes it and updates the lens ID in the memory 132. The state of the external extender does not change during shooting, and the lens ID obtained by the initial communication in S102 always represents the information of the external extender correctly. Here, the magnifications of the external extenders of x1.4EXT127 and x2.0EXT128 are x1.4 and x2.0, respectively, and the magnification of the built-in extender is x1.4. Further, the open F value of the interchangeable lens 110 alone is F4.

  Table 1 shows the correspondence between the lens ID value and the structure of the photographing optical system of the interchangeable lens 110. As shown in Table 1, six types of lens ID values are provided depending on the mounting status of the external extender and the built-in extender 120, but each value is an example. In S102, the lens CPU 130 transmits the value of the lens ID corresponding to the lens state detected at that time to the camera CPU 152. Of course, the correspondence table of Table 1 is stored in both the memories 132 and 154, and the camera CPU 152 can recognize the lens state from the transmitted lens ID value.

  Next, when the camera CPU 152 determines that the release button 151 is half-pressed (S1 state) (Y in S103), the camera CPU 152 acquires information necessary for shooting including the open F value from the lens CPU 130 (S104). If release button 151 is not half-pressed (N in S103), the determination in S103 is repeated. The information that is changed by the insertion and withdrawal of the optical unit received by the camera CPU 152 in S104 is not the lens ID of S102 but information that is different from the lens ID. In the case of a camera body that essentially corresponds to an interchangeable lens incorporating an optical unit, S102 is performed again between S103 and S104. The same applies to FIGS. 3 and 4 described later.

  After S104, the camera CPU 152 determines whether or not the lens ID received in S102 is different from the current lens ID (S105). The current lens ID is obtained from the relationship shown in Table 2 and the lens ID received in S102, the optical information received in S104. The information that changes due to the insertion and retraction of the optical unit received in S104 of the present embodiment is the open F value that is the F value in the open state of the diaphragm 116, but the focus detection of the imaging surface of the AF sensor 161 or the image sensor 165 is performed. Other information such as vignetting information of light rays reaching the pixel for use may be used.

  When the extender 120 is inserted and removed between S102 and S104, and the lens ID transmitted in S102 is different from the lens state at the time of shooting (Y in S105), the camera CPU 152 updates the lens ID in the memory 154 (S106). ). In the firmware update, S105 and S106 are added. Note that since the open F value and vignetting information transmitted in S104 are information that has been transmitted from the lens CPU 130 to the camera CPU 152 in the past, it is not necessary to update the firmware of the interchangeable lens 110 in this embodiment. However, the present invention does not preclude a configuration in which information that changes due to insertion and withdrawal of another optical unit, which has not been transmitted in the past by updating the firmware of the interchangeable lens 110, is transmitted.

  The state of the external extender can be determined from the lens ID, which does not change from that of the lens ID. On the other hand, the presence or absence of the extender 120 can be determined from the open F value. Thereby, lens ID at the time of imaging | photography can be acquired. For example, when x1.4EXT127 is attached, the interchangeable lens 110 is attached to the camera body 150 without the extender 120, the lens ID value “14” is transmitted in S102, and the extender 120 is inserted before shooting. Will be described. In S104, the open F value “F8” is communicated (by 1.4 times the extender 120 is inserted and F5.6 × 1.4). In step S <b> 105, the camera CPU 152 acquires the lens ID “11” from the information in Table 2, the lens ID “14”, and the open F value “F8”.

  When the lens ID transmitted in S102 and the lens state at the time of shooting are the same (N in S105), or after S106, the camera CPU 152 determines whether or not the release button 151 is fully pressed (S2 state). (S107). When it is not fully pressed (exposure start), the process returns to S103. If it is fully pressed (Y in S107), the camera CPU 152 opens and closes the shutter 164 to perform exposure (S108), and generates image data (S109). The image data generated in S109 is data in which no image processing is performed on the image data acquired by the image sensor 165.

  Thereafter, the camera CPU 152 performs image processing using correct lens ID information via the image processing circuit 158 to generate image data (S110). When the image processing is completed and processed image data is generated, the image data generated in S111 and the information obtained in S102 and S104 are recorded in the memory card 155 (S111). In S111, the camera CPU 152 may further record control data used for image processing. With the above system, a change in the lens state due to the insertion / extraction of the extender can be correctly detected, and accurate image processing can be performed.

  In the present embodiment, the correct lens ID is used for the image processing (S110). However, the present invention is not limited to this, and can be used for driving control of the focus lens 112.

  FIG. 3 is a flowchart showing a modification of FIG. S105 and S106 in FIG. 2 may be provided between S109 and S110 as shown in FIG. In FIG. 3, the same steps as those in FIG.

  FIG. 4 is a flowchart for explaining the operation of the second embodiment. In this embodiment, image processing is not performed in the camera body 150, but image processing is performed by another image processing apparatus (for example, PC 200 or PC 300). S105 and S106 are not performed in the camera body 150. Also, S112 is provided instead of S111. The camera CPU 152 performs S112 after S101 to S104 and S107 to S109 are performed.

  That is, when the camera CPU 152 determines that the interchangeable lens 110 is attached to the camera body 150 (S101), the camera CPU 152 communicates with the lens CPU 130 to acquire the lens ID of the interchangeable lens 110 (S102). Next, when the camera CPU 152 determines that the release button 151 is half-pressed (S1 state) (Y in S103), the camera CPU 152 receives from the lens CPU 130 optical information necessary for photographing including the open F value (S104). Next, when the release button 151 is fully pressed (S2 state) (Y in S107), the camera CPU 152 performs exposure by opening and closing the shutter 164 (S108), and generates image data (S109).

  In S112, the camera CPU 152 stores the raw image data obtained in S109 and the lens ID obtained in S102 in the memory card 155. Information (lens type, focal length at the time of shooting, brightness, open F value, vignetting information, etc.) that is changed by inserting and retracting the optical unit obtained in S104 is also stored in the memory card 155.

  Next, in the PC 200 or PC 300, predetermined image processing software is activated (S150), and information in the memory card 155 is read (S152). For the information on the memory card 155, the USB cable 170 or the wireless communication 180 may be used, or a reader (not shown) of the memory card 155 may be used. Thereafter, S154 corresponding to S105 and S156 corresponding to S106 are performed, and image processing is performed with the correct lens ID (S158). The PC 200 or 300 stores the image data in the memory card 155 or its own storage device, or communicates the image processing result via the network 250. Since each step on the camera body 150 side has been performed conventionally, in this embodiment, it is only necessary to update the image processing software installed in the PC 200 or 300 to have S154 and S156.

  As mentioned above, although this embodiment was described, this invention is not limited to this embodiment, A various deformation | transformation and change are possible within the range of the summary. For example, when the lens ID is updated in S106 or S156, the lens ID attached to the photographed image processed with the correct lens ID is set to the correct lens ID after the update, or the lens ID acquired in S102 remains as it is. Whether to do is selective.

  The imaging apparatus and imaging system of the present invention can be applied to a digital single lens reflex camera or a mirrorless camera.

DESCRIPTION OF SYMBOLS 110 ... Interchangeable lens, 120 ... Extender, 130 ... Lens CPU (lens control means), 150 ... Camera body, 152 ... Camera CPU (imaging apparatus control means), OA ... Optical axis

Claims (12)

An image obtained by imaging using an imaging device in which a lens device having an optical unit that changes the optical characteristics of the imaging optical system by being inserted into and extracted from the optical path is detachably attached ;
First information that is information of the lens device that changes due to insertion and removal of the optical unit at the time of capturing the image;
A lens ID for specifying an insertion / extraction state of the optical unit in the lens device acquired by the imaging device from the lens device ;
Get
An image processing apparatus that updates the lens ID based on the first information and the lens ID , and performs image processing on the image using the updated lens ID of the lens apparatus.   The image processing apparatus according to claim 1, wherein the first information is information indicating an open F value of the lens apparatus. The imaging device have a focus detection means out of phase mode,
The image processing apparatus according to claim 1, wherein the first information is information indicating vignetting of a light beam incident on the focus detection unit. Has a storage unit for storing correspondence information between the lens ID and the prior SL first information of the lens device,
The image processing apparatus according to any one of claims 1 to 3, characterized in that updating the lens ID based on the correspondence information. The focal length of the photographing optical system, an image processing apparatus according to any one of claims 1 to 4, characterized in that it varies by insertion of the optical unit with respect to the optical path of the imaging optical system . An image obtained by imaging using an imaging device in which a lens device having an optical unit that changes the optical characteristics of the imaging optical system by being inserted into and removed from the optical path is detachably attached, and at the time of imaging the image first information, which is information of the lens device that varies with insertion of the optical unit, and a lens ID for identifying the insertion state of the optical unit in the lens apparatus in which the imaging device is acquired from the lens device A step to obtain,
Updating the lens ID based on the first information and the lens ID ;
Performing image processing on the image using the updated lens ID of the lens device;
An image processing method comprising: The image processing method according to claim 6 , wherein the first information is information indicating an open F value of the lens device. The imaging device may have a focus detection means of the phase difference method,
The image processing method according to claim 6 , wherein the first information is information indicating vignetting of a light beam incident on the focus detection unit. An imaging apparatus in which a lens apparatus having a photographing optical system is detachable,
The imaging optical system includes an optical unit to vary the optical characteristics of the imaging optical system by being insertion with respect to the optical path of the photographing optical system,
The imaging apparatus includes a control unit that can communicate with the lens device, and an image processing unit that performs image processing.
When the lens device is attached to the imaging device, the control means acquires a lens ID for specifying the insertion / extraction state of the optical unit in the lens device from the lens device,
The image processing means changes with the insertion / extraction of the optical unit at the time of capturing the image with respect to an image captured after the optical unit is inserted / removed after the lens apparatus is mounted on the imaging apparatus. Updating the lens ID based on the first information which is information of the lens device and the lens ID ;
An imaging apparatus that performs image processing using the updated lens ID of the lens apparatus. The imaging device according to claim 9 , wherein the control unit acquires the first information from the lens device when an imaging preparation operation for imaging an image is started. The imaging device according to claim 9 or 10 , wherein the first information is information indicating an open F value of the lens device. Having a phase difference type focus detection means;
The imaging apparatus according to claim 9, wherein the first information is information indicating vignetting of a light beam incident on the focus detection unit.