JP5137300B2 - Imaging apparatus and control method thereof - Google Patents

Description

  The present invention relates to an imaging apparatus capable of normally performing flange back adjustment and a control method thereof.

  Some conventional camera devices have a function of electrically adjusting the flange back (see, for example, Patent Document 1). In addition, there is a camera that can perform stable photographing without being affected by a temperature change in a use environment (for example, see Patent Document 2). Furthermore, there is a lens apparatus having means for correcting a difference between the flange back information of the camera apparatus mounted at the time of assembly adjustment of the lens apparatus and the flange back information of the imaging apparatus to which the lens apparatus is currently mounted (for example, And Patent Document 3).

JP 2000-121911 A JP 2003-131103 A Japanese Patent Application Laid-Open No. 11-084501

  However, the conventional flange back adjustment is affected by errors caused when combining the flange back information set for the interchangeable lens device and the flange back information set for the camera device, and the temperature change in the usage environment. It was not possible to deal with both of the errors caused by this. In order to solve this, it is considered that the most effective means is to obtain a correction value most suitable for the use environment at the time of adjustment by the user performing flange back adjustment automatically or manually. According to this, it is not necessary to consider means for correcting the difference between the flange back information of the camera device mounted at the time of assembling and adjusting the lens device and the flange back information of the imaging device to which the lens device is currently mounted. .

  However, when the user performs flange back adjustment, the camera device performs a zoom operation or a focus operation of the lens device. At that time, if an operation such as zoom operation or focus operation, shutter speed change, iris iris value change, etc. is performed from the outside, an exception such as the adjustment not being completed or not being performed normally is considered to occur. .

  Accordingly, an object of the present invention is to prevent the occurrence of an exception such as flange back adjustment not being completed or not being normally performed due to an operation input from a user.

An image pickup apparatus according to the present invention is an image pickup apparatus to which a lens device including a drivable variator lens and a focus lens can be attached, and is directly or indirectly connected to a cancel operation unit that is directly or indirectly connected. A focus operation unit, a determination operation unit connected directly or indirectly, and a control unit having an AF adjustment mode and an MF adjustment mode as a flange back adjustment mode, and the control unit includes the flange back adjustment mode. When the MF adjustment mode is selected, the variator lens of the lens device is moved to the first zoom position without accepting the operation of the focus operation unit other than the cancel operation unit, and the first zoom position When the lens device detects that the variator lens has arrived at Accordingly, when the operation of the determination operation unit is received, the variator lens of the lens device is moved to the second zoom position without receiving the operation of the focus operation unit other than the cancel operation unit, and the second When the lens device detects that the variator lens has arrived at the zoom position, the operation of the focus operation unit is accepted, and when the operation of the decision operation unit is accepted, the decision operation unit at the first zoom position An adjustment value for flange back adjustment is calculated from the focus position when the operation of the determination operation unit is received and the focus position when the operation of the determination operation unit is received at the second zoom position, and AF as the flange back adjustment mode is calculated. When the adjustment mode is selected, MF adjustment mode is selected as the flange back adjustment mode The went in calculating the adjustment value to come first zoom position, characterized in that it does not perform reception of the focus operating unit in the second zoom position.

  According to the present invention, since the predetermined operation input from the operation means is invalidated during the execution period of the flange back adjustment control, the flange back adjustment is not completed or normally performed due to the operation input from the user. It is possible to prevent exceptions such as not being performed.

  Hereinafter, an embodiment in which the present invention is applied to a digital video camera will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a block diagram showing an electrical circuit configuration of a digital video camera according to an embodiment of the present invention. In FIG. 1, a light beam from an object includes a first lens group 1 in which an optical system in the interchangeable lens unit 12 is fixed, a variator lens group 2 that is a second lens group that performs zooming, a diaphragm 3, Through the fixed third lens group 4 and the focus lens group 5 which is a fourth lens group having both a focus adjustment function and a competition function for correcting the movement of the focus due to zooming, With a color separation prism (not shown), the red component in the three primary colors is on the image sensor 21 such as a CCD, the green component is on the image sensor 22 such as a CCD, and the blue component is an image sensor 23 such as a CCD. Each is imaged on the top.

  The absolute position of each of the variator lens group 2 and the focus lens group 5 is detected by an absolute position detection device (not shown) such as an encoder, and the detected information is supplied to a lens microcomputer 10 as a control means of the interchangeable lens unit 12. The

  The respective images on the image sensors 21, 22, and 23 are photoelectrically converted, amplified to optimum levels by the amplifiers 25, 26, and 27, and input to the camera signal processing circuit 28 to be standard television signals (video signals). At the same time, the AF information is read as data by the AF data reading program unit of the main body microcomputer 29 as the control means of the camera device as the AF evaluation value.

  The AF evaluation value read by the main body microcomputer 29 is combined with information on the switch on the video camera main body 31 side such as the ON / OFF state of the AF switch (not shown) and the state of the zoom switch (not shown). The data is transferred to the lens microcomputer 10 through the lens side contact 11.

  The lens microcomputer 10 sends a signal to the zoom motor driver 7 to drive the variator lens group 2 in the direction in which TELE or WIDE is pressed when the zoom switch is pressed according to information from the main body microcomputer 29. . As a result, the lens microcomputer 10 drives the variator lens group 2 via the zoom motor (lens driving means) 6. At the same time, the lens microcomputer 10 sends a signal to the focus motor driver 9 based on the lens cam data as control information stored in advance in the internal cam data storage unit, and the focus lens via the focus motor (lens driving means) 8. Move group 5. As a result, it is possible to perform a zooming operation without focusing.

  By the way, in the type in which the correction lens (focus lens group 5) is located behind the optical axis rather than the variable magnification lens (variator lens group 2) as in the present embodiment, the focus at the time of variable magnification is maintained. The control position of the correction lens changes depending on the subject distance. As shown in FIG. 8A, the lens cam data is focused for each of a plurality of absolute positions of the variator lens group 2 and for each absolute position of the subject distance (for example, every 1 m and 2 m in FIG. 8A). The position of the lens group 5 is stored. The program of the control unit determines the rotation direction and rotation speed of the focus motor 8 using lens cam data selected by the absolute position information of the variator lens group 2 and the focus lens group 5 detected by a position detection device (not shown). To do. When the AF switch on the camera body 31 side is ON, the AF control unit in the lens microcomputer 10 sends a signal to the focus motor driver 9 so that the AF evaluation value from the body microcomputer 29 is maximized. An automatic focus adjustment operation is performed by moving only the group 5.

  Now, regarding the driving of the correction lens based on the lens cam data as described above, an origin for ensuring accurate back focus must be determined. The origin is determined by correcting with a predetermined correction value based on the set reference position. The predetermined correction value here is the total value of the correction value possessed by the interchangeable lens unit 12 and the correction value transmitted from the camera body 31. The correction value possessed by the interchangeable lens unit 12 includes a fixed value due to variations and the like that occur at the stage of manufacturing the interchangeable lens unit 12, and a variable value due to a temperature change on the optical system side. It is the total value. The correction value transmitted from the camera body 31 is obtained by using a fixed value due to variation or the like generated at the stage of manufacturing the camera body 31 and an output signal detected by the temperature detection element 24 on the camera body 31 side. The value given as change information of the flange back on the camera body 31 side.

  This embodiment relates to a flange back adjustment method for obtaining an adjustment value for correcting an error generated when a correction value possessed by the interchangeable lens unit 12 itself and a correction value transmitted from the camera body 31 are combined.

  FIG. 2 shows an example of the menu screen of this embodiment. Here, the adjustment value initialization 203 is a selection item for returning the flange back information of the camera device to the factory setting value.

  FIG. 3 is a flowchart showing the flange back adjustment method in the present embodiment. In AF (autofocus) adjustment, the variator lens group 2 is moved to the TELE end in the first step S301. In step S302, the focus lens group 5 is automatically moved and focused. While maintaining the focus position, in step S303, the variator lens group 2 is moved to the WIDE end.

  In subsequent step S304, the current focus position, that is, the focus position f1 at the TELE end is read. In step S305, the focus lens group 5 is automatically moved and focused. In step S306, the current focus position, that is, the focus position f2 at the WIDE end is read. Then, the adjustment value is calculated using (f1-f2) and the lens coefficient set in the interchangeable lens unit 12, and the flange back information set at the stage of manufacturing the camera body 31 or the user has previously A value obtained by summing up the flange back information stored as a result of performing the flange back adjustment on the interchangeable lens unit 12 is stored in the camera body 31 as a new adjustment value. It is possible to correct an error of the flange back that occurs when the interchangeable lens unit 12 and the camera body 31 are combined by sequentially sending the adjustment value obtained here with correction by temperature to the lens unit 12. It becomes possible.

  In MF (manual focus) adjustment, the variator lens group 2 is moved to the TELE end in the first step S301. In step S302, after the focus lens group 5 is manually moved and focused, the process proceeds to the next process by the enter key operation. While maintaining the focus position set in step S302, the variator lens group 2 is moved to the WIDE end in step S303. In step S304, the current focus position, that is, the focus position f1 at the TELE end is read. In step S305, the focus lens group 5 is manually moved and focused, and then the process proceeds to the next processing by the enter key operation. In step S306, the current focus position, that is, the focus position f2 at the WIDE end is read. Then, the adjustment value is calculated using (f1-f2) and the lens coefficient set in the interchangeable lens unit 12, and the flange back information set at the stage of manufacturing the camera body 31 or the user has previously A value obtained by summing up the flange back information stored as a result of performing the flange back adjustment on the interchangeable lens unit 12 is stored in the camera body 31 as a new adjustment value. It is possible to correct an error of the flange back that occurs when the interchangeable lens unit 12 and the camera body 31 are combined by sequentially sending the adjustment value obtained here with correction by temperature to the lens unit 12. It becomes possible.

  FIG. 4 is a flowchart showing a flange back adjustment method including invalidation of user operation in AF adjustment, which is one of the flange back adjustments in the present embodiment. FIG. 5 is a sequence chart showing the operational relationship among the operation unit, camera body, and interchangeable lens unit at this time. This process is started when 201 in FIG. 2 is selected.

  In the AF adjustment, processing is started in a state where all operations other than the cancel operation, such as zoom operation, focus operation, iris operation, shutter speed operation, etc., are not accepted (steps S501 and S502).

  In the first step S401, a control signal for forcibly shifting to the AF mode and a control signal for moving the variator lens group 2 to the TELE end are transmitted from the main body microcomputer 29 to the lens microcomputer 10 (step S503). ), The lens microcomputer 10 moves the variator lens group 2 to the TELE end.

  In step S402, the lens microcomputer 10 determines whether or not the TELE end has been reached, and repeats the operation in step S401 until the TELE end is reached. When the TELE end is reached, the lens microcomputer 10 sends a signal indicating that the variator lens group 2 has reached the TELE end to the main body microcomputer 29 (step S504). Receiving this, the main body microcomputer 29 transmits to the lens microcomputer 10 a signal for confirming whether or not focusing by AF is completed (step S505). In step S403, the lens microcomputer 10 automatically moves and focuses the focus lens group 5. Note that step S403 is repeated until focusing is completed. After completion of focusing, the lens microcomputer 10 transmits a signal indicating that focusing is completed to the main body microcomputer 29 (step S506).

  A control signal for forcibly shifting to the MF mode and a control signal for moving the variator lens group 2 to the WIDE end are transmitted from the main body microcomputer 29 to the lens microcomputer 10 (step S507). In step S404, the lens microcomputer 10 that has received these control signals moves the variator lens group 2 to the WIDE end while maintaining the focus position at that time.

  In step S405, the lens microcomputer 10 determines whether or not the WIDE end has been reached, and the operation in step S404 is repeated until the WIDE end is reached. When reaching the WIDE end, the lens microcomputer 10 transmits a signal indicating that the variator lens group 2 has reached the WIDE end to the main body microcomputer 29 (step S508).

  The main body microcomputer 29 transmits a signal for confirming the current focus position, that is, the focus position f1 at the TELE end to the lens microcomputer 10 (step S509), and the lens microcomputer 10 is a signal indicating the focus position f1. Is transmitted to the main body microcomputer 29 (step S510). In step S406, the main body microcomputer 29 receives a signal indicating the focus position f1 from the lens microcomputer 10 and stores it (step S511).

  Subsequently, the main body microcomputer 29 transmits a control signal for forcibly shifting to the AF mode and a signal for confirming that focusing by AF has been completed to the lens microcomputer 10 (step S512). The lens microcomputer 10 that has received these signals automatically moves and focuses the focus lens group 5 in step S407, and returns a signal indicating the in-focus state to the main body microcomputer 29 (step S513). Note that the focusing process in step S407 is repeated until focusing is completed.

  The main body microcomputer 29 that has received the in-focus completion signal transmits a signal for confirming the current focus position, that is, the focus position f2 at the WIDE end, to the lens microcomputer 10 (step S514). Then, a signal indicating the focus position f2 is transmitted to the main body microcomputer 29 (step S515). In step S409, the main body microcomputer 29 receives a signal indicating the focus position f2 from the lens microcomputer 10 and stores it. In subsequent step S410, the main body microcomputer 29 calculates an adjustment value using (f1-f2) and the lens coefficient set in the interchangeable lens unit 12, and the flange back set in the stage of manufacturing the camera main body 31. Information or a value obtained by summing the flange back information stored as a result of the user performing flange back adjustment on the interchangeable lens unit 12 before is stored in the camera body 31 as a new adjustment value ( Step S516).

  As soon as the processing is finished, the main body microcomputer 29 cancels the state in which all operations other than the cancel operation are not accepted (step S517). Correcting the flange back error that occurs when the interchangeable lens unit 12 and the camera body 31 are combined by sequentially sending the adjustment value obtained here with correction by temperature to the lens unit 12. Is possible. By the above control, erroneous adjustment is prevented.

  FIG. 6 is a flowchart showing a flange back adjustment method including invalidation of user operation in MF adjustment, which is one of the flange back adjustments in the present embodiment. FIG. 7 is a sequence chart showing the operational relationship among the operation unit, camera body, and interchangeable lens unit at this time. This process is started when 202 in FIG. 2 is selected.

  In the MF adjustment, the camera main body 31 starts the process with respect to the operation unit in a state where all operations other than the cancel operation, such as a zoom operation, a focus operation, an iris operation, and a shutter speed operation, are not accepted. (Steps S701 and S702).

  In the first step S601, a control signal for forcibly shifting to the MF mode and a control signal for moving the variator lens group 2 to the TELE end are transmitted from the main body microcomputer 29 to the lens microcomputer 10 (step S703). ), The variator lens group 2 is moved to the TELE end.

  In subsequent step S602, the lens microcomputer 10 determines whether or not the TELE end has been reached, and repeats the operation in step S601 until the TELE end is reached. When the TELE end is reached, the lens microcomputer 10 sends a signal indicating that the variator lens group 2 has reached the TELE end to the main body microcomputer 29 (step S704). In response to this, the main body microcomputer 29 allows the user to perform focus adjustment after permitting the focus operation and the enter key operation among the operations from the user (step S705). Is moved to focus (step S706). Note that step S603 is repeated until the enter key operation (step S707) is completed. After completion of the enter key operation, the main body microcomputer 29 proceeds with the process again in a state where all operations other than the cancel operation are not accepted (step S708).

  In step S604, a control signal for forcibly shifting to the MF mode and a control signal for moving the variator lens group 2 to the WIDE end are transmitted from the main body microcomputer 29 to the lens microcomputer 10 (step S709). ). Receiving these control signals, the lens microcomputer 10 moves the variator lens group 2 to the WIDE end while maintaining the focus position.

  In step S605, the lens microcomputer 10 determines whether or not the WIDE end has been reached, and repeats the operation in step S604 until the WIDE end is reached. When the WIDE end is reached, the lens microcomputer 10 transmits a signal indicating that the variator lens group 2 has reached the WIDE end to the main body microcomputer 29 (step S710).

  Next, the main body microcomputer 29 transmits a signal for confirming the current focus position, that is, the focus position f1 at the TELE end to the lens microcomputer 10 (step S711), and the lens microcomputer 10 determines the focus position f1. The signal shown is transmitted to the main body microcomputer 29 (step S712). In step S606, the main body microcomputer 29 receives and stores a signal indicating the focus position f1 from the lens microcomputer 10 (step S713).

  Subsequently, in step S607, the main body microcomputer 29 allows the user to adjust the focus after allowing the focus operation and the enter key operation among the operations from the user (step S714), and the user manually moves the focus lens group 5. To focus (step S715). Note that step S607 is repeated until the enter key operation (step S716) is completed. After completion of the enter key operation, the main body microcomputer 29 proceeds with the process again in a state where all operations other than the cancel operation are not accepted (step S717).

  Subsequently, the main body microcomputer 29 transmits a signal for confirming the current focus position, that is, the focus position f2 at the WIDE end to the lens microcomputer 10 (step S718), and the lens microcomputer 10 performs the above-described focus position f2. Is transmitted to the main body microcomputer 29 (step S719). In step S608, the main body microcomputer 29 receives a signal indicating the focus position f2 from the lens microcomputer 10 and stores it.

  Next, in step S609, the main body microcomputer 29 calculates an adjustment value using (f1-f2) and the lens coefficient set in the interchangeable lens unit 12, and sets the flange set in the stage of manufacturing the camera main body 31. The back information or a value obtained by summing the flange back information stored as a result of the user performing flange back adjustment on the interchangeable lens unit 12 before is stored in the camera body 31 as a new adjustment value. . (Step S720)

  As soon as the processing is completed, the main body microcomputer 29 cancels the state in which all operations other than the cancel operation are not accepted (step S721). It is possible to correct an error of the flange back that occurs when the interchangeable lens unit 12 and the camera body 31 are combined by sequentially sending the obtained adjustment value, which is corrected by temperature, to the lens unit 12. It becomes. By the above control, erroneous adjustment is prevented. Here, in the two adjustments described above, the operation for forcibly ending such as turning on / off the power supply or the operation for performing the restart is not limited. Although not performed in the present embodiment, it goes without saying that the flange back adjustment is performed more reliably by restricting operations such as the AE mode, the gain setting, and the white balance mode.

  In the above description, the operation unit means, for example, a button attached to the main body or an external input device such as a remote control that is directly or indirectly connected to the camera main body 31, and is represented by 46 in FIG. become. As shown in 46 of FIG. 9, the operation unit 46 includes an iris diaphragm value change unit 40, a shutter speed change unit 41, a zoom operation unit 42, a focus operation unit 43, a determination operation unit 44, and a cancel operation unit 45. During the flange back adjustment execution, the iris aperture value change (40 in FIG. 9), the shutter speed change (41 in FIG. 9), and the zoom operation (42 in FIG. 9) are always disabled by operating these operation sections. The focus operation (43 in FIG. 9) and the decision operation (44 in FIG. 9) are permitted only for specific values of MF adjustment (steps S603 and S607 in FIG. 6), and the cancel operation (45 in FIG. 9) is always permitted. To do. Other examples of operation inputs that are always disabled during execution of flange back adjustment include operation inputs related to zoom speed changes, operation inputs related to focus speed operations, operation inputs related to AE mode changes, and gain input. Operation input related to change, operation input related to change of white balance, and the like are included.

  Next, how the adjustment value obtained in the above processing is processed on the interchangeable lens unit 12 side will be described. The adjustment value sent from the main body microcomputer 29 is subjected to predetermined processing as a correction value in the lens microcomputer 10. In the lens microcomputer 10, lens cam data is stored as ideal values (design values) as shown in FIG. The following calculation is performed for the correction. If the adjustment value (flange back change information) transmitted from the camera body 31 side is positive, the back focus will be longer than the ideal value. Therefore, as shown in FIG. The lens cam data indicated by the dotted line obtained by subtracting this amount from the value is read in parallel (downward). By performing lens movement control based on the new data that has been replaced, accurate zooming that does not cause blurring can be performed. If the adjustment value is negative, the back focus is contracted from the ideal value, and the lens cam data is re-read with a parallel shift upward.

  As described above, according to the present embodiment, when the user performs the flange back adjustment electrically, the operation such as the zoom operation or the focus operation, the change of the shutter speed or the change of the iris aperture value is invalidated from the outside. By doing so, it becomes possible to prevent exceptions such as adjustment not being completed or not being performed normally. Therefore, the adjustment value is calculated based on the error generated when the flange back information set for the interchangeable lens device and the flange back information set for the camera device are combined, and the flange back information of the camera device is reconstructed. By doing so, it is possible to perform optimum flange back adjustment for the mounted lens device.

  Another object of the present invention is to supply a storage medium storing software program codes for realizing the functions of the above-described embodiments to a system or apparatus, and the computer (or CPU or MPU) of the system or apparatus stores the storage medium. Needless to say, this can also be achieved by reading and executing the program code stored in.

  In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the program code itself and the storage medium storing the program code constitute the present invention.

  As a storage medium for supplying the program code, for example, a flexible disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.

  Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (basic system or operating system) running on the computer based on the instruction of the program code. Needless to say, a case where the functions of the above-described embodiment are realized by performing part or all of the actual processing and the processing is included.

  Further, after the program code read from the storage medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function is determined based on the instruction of the program code. It goes without saying that the CPU or the like provided in the expansion board or function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing.

It is a block diagram which shows the electric circuit structure of the digital video camera which concerns on embodiment of this invention. It is a figure which shows an example of the menu screen in embodiment of this invention. It is a flowchart which shows the flange back adjustment method in embodiment of this invention. It is a flowchart which shows the flange back adjustment method including invalidation of user operation in AF adjustment. It is a sequence chart which shows the operation | movement relationship between the operation part, a camera main body, and an interchangeable lens unit at the time of the flange back adjustment process including invalidation of user operation in AF adjustment. It is a flowchart which shows the flange back adjustment method including invalidation of the user operation in MF adjustment. It is a sequence chart which shows the operation | movement relationship between the operation part, a camera main body, and an interchangeable lens unit at the time of the flange back adjustment process including invalidation of user operation in MF adjustment. It is a figure for demonstrating the lens movement control performed by correct | amending lens cam data. It is the block diagram which showed the electric circuit structure of the digital video camera which concerns on embodiment of this invention with the function structure of the operation part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 4: Fixed lens group 2: Variator lens group 3: Diaphragm 5: Focus lens group 6, 8: Lens drive means 7, 9: Lens drive driver 10: Lens microcomputer 11: Lens side contact 12: Interchangeable lens unit 21 , 22, 23: Image sensor 24: Temperature detection means 25, 26, 27: Amplifier 28: Camera signal processing circuit 29: Main body microcomputer 30: Camera side contact 31: Camera body 40: Iris aperture value change means 41: Shutter speed change Means 42: Zoom operation unit 43: Focus operation unit 44: Determination operation unit 45: Cancel operation unit 46: Operation unit

Claims (2)

An imaging device capable of mounting a lens device including a driveable variator lens and a focus lens,
A cancel operation unit connected directly or indirectly;
A focus operation unit connected directly or indirectly;
A determination operation unit connected directly or indirectly;
Control means having an AF adjustment mode and an MF adjustment mode as the flange back adjustment mode,
The control means includes
When the MF adjustment mode is selected as the flange back adjustment mode, the variator lens of the lens device is moved to the first zoom position without accepting the operation of the focus operation unit other than the cancel operation unit, and When it is detected from the lens device that the variator lens has arrived at the first zoom position, an operation of the focus operation unit is received, and when an operation of the determination operation unit is received, the focus operation other than the cancel operation unit is performed. If the variator lens of the lens apparatus is moved to the second zoom position without receiving the operation of the lens unit and the arrival of the variator lens at the second zoom position is detected from the lens apparatus, the focus operation is performed. When the operation of the determination operation unit is received and the first operation is received, Calculating the adjustment value of the flange back adjustment from the focus position when the operation of the determination operation unit is received at the zoom position and the focus position when the operation of the determination operation unit is received at the second zoom position; When the AF adjustment mode is selected as the flange back adjustment mode, the first zoom position and the second zoom position performed when calculating the adjustment value when the MF adjustment mode is selected as the flange back adjustment mode. An image pickup apparatus that does not receive the focus operation unit at a zoom position. A lens device including a driveable variator lens and a focus lens can be mounted, and a cancel operation unit connected directly or indirectly, a focus operation unit connected directly or indirectly, and direct or indirect And a determination operation unit connected to the image pickup apparatus control method,
When the MF adjustment mode is selected as the flange back adjustment mode, the variator lens of the lens device is moved to the first zoom position without accepting the operation of the focus operation unit other than the cancel operation unit, and the first When it is detected from the lens device that the variator lens has arrived at a zoom position of 1, when the operation of the focus operation unit is received and the operation of the determination operation unit is received, the focus operation unit other than the cancel operation unit When the variator lens of the lens apparatus is moved to the second zoom position without receiving the operation of the lens apparatus and the arrival of the variator lens at the second zoom position is detected from the lens apparatus, the focus operation unit When the operation of the determination operation unit is accepted, the first time Calculating an adjustment value of the flange back adjustment from the focus position when the operation of the determination operation unit is received at the second position and the focus position when the operation of the determination operation unit is received at the second zoom position; When the AF adjustment mode is selected as the flange back adjustment mode, the first zoom position and the second zoom position performed when calculating the adjustment value when the MF adjustment mode is selected as the flange back adjustment mode. A control method for an imaging apparatus, comprising a control step of not accepting the focus operation unit at a zoom position.

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