JP2017085436A - Imaging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To notify a user of the limit of execution speed, due to zoom execution speed decrease when a zooming operation is inhibited during exposure time due to photographing.SOLUTION: An imaging apparatus comprises: lens information acquiring means 30 that acquires first lens zoom control information required for a zoom operation of a lens; lens zoom control means 24, 30 for giving a zoom instruction for the lens; and exposure determination means 16, 24 that determines whether exposure has been taking place when receiving the zoom instruction from the lens zoom control means. If it is determined that exposure has been taking place, the lens zoom control means limits zoom control by giving the notice of this determination to: the lens zoom control means 24, 30 that do not exert control for performing the zoom operation; means that calculates a zoom controllable time from a difference between a photographing interval and exposure time in photographing; lens zoom control information production means 24, 30 that produce second lens zoom control information from the zoom controllable time and the first lens zoom control information; and second lens zoom control information zoom control means.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an image pickup apparatus, and more particularly to an image pickup apparatus that enables a zoom operation suitable for moving image and lens zoom control when shooting at a predetermined interval.

  In the prior art, there is a product that can perform power zoom on the telephoto and wide sides using an operation member for zoom control of a lens connected to a camera.

  On the other hand, in cases where shooting is performed at regular intervals, such as moving images and time-lapse shooting, there are cases where it is desired to perform shooting while changing the angle of view by performing a zoom operation during the shooting period.

  In such a case, if the lens is physically zoomed by the power zoom control or the user operation during the exposure period of shooting by the camera, there is a problem that the subject being shot by the camera is blurred by the zoom operation. .

  In order to solve this, there have been proposed a mechanism for prohibiting power zoom control by the operation member during the exposure period of the camera, and correcting a blurred image by detecting subject blur due to zoom operation (see Patent Document 1). ).

JP 2111-13333 A

  However, in cases where shooting is performed at regular intervals, such as movies and time-lapse shooting, if the zoom operation of the lens by an external operation is prohibited during the exposure period, the period during which the lens can be zoom controlled within the shooting interval is limited. . This causes a problem that the maximum zoom amount that can be zoomed within the shooting interval is limited by the exposure time.

  When it is desired to perform a zooming operation of a lens in moving images or time-lapse shooting, there are cases in which shooting is performed by determining a zoom amount for a certain period or a zoom amount for each single shot.

  However, due to the above problems, it is not possible to know that the zoom amount for a certain period or the zoom amount for each single shot is limited at the time of shooting, and the zoom operation intended by the user cannot be performed within the shooting interval. There was a problem that could not be taken.

In order to solve the above problems, an imaging apparatus according to the present invention provides:
The zoom controllable time is calculated from the difference between the shooting interval and the exposure time in shooting. Generates second lens control information necessary for lens zoom control limited from the calculated zoom control possible time and information necessary for lens zoom control, and notifies the second lens control information to the zoom control means to perform zoom control. It is characterized by restricting.

  According to the imaging apparatus of the present invention, it is possible to notify the user of the limitation on the execution speed due to the decrease in the zoom execution speed when the zoom operation is prohibited during the exposure time for shooting. This makes it possible to issue a zoom execution instruction without a sense of incongruity.

Overview of power zoom control Lens configuration diagram in the present invention Camera configuration diagram in the present invention Camera operation member configuration diagram in the present invention Power zoom adapter configuration diagram in the present invention Mobile terminal configuration diagram in the present invention Zoom control screen configuration diagram 1 in the present invention Zoom control screen configuration diagram 1 in the present invention Sequence diagram of embodiment 1 in the present invention 1 Zoom control possible section in the present invention Sequence diagram 1 of the second embodiment of the present invention Sequence diagram 2 of Embodiment 2 in the present invention Time-lapse shooting setting in the present invention Zoom magnification setting screen 1 in the present invention Zoom magnification setting screen 2 in the present invention

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a block diagram illustrating the configuration of an imaging apparatus according to an embodiment of the present invention.

<Configuration of remote control system>
In the present embodiment, a remote control system that connects an imaging device and a portable terminal wirelessly and controls photographing of the imaging device from the portable terminal will be described.

  A configuration example of a remote control system according to the first embodiment of the present invention will be described below with reference to FIG.

  Reference numeral 101 denotes a digital single-lens reflex camera (hereinafter referred to as a digital camera), which is an example of an interchangeable lens imaging device. Reference numeral 102 denotes a lens device attached to the digital camera 101. A power zoom adapter 103 is attached to the lens device 102. The power zoom adapter 103 can perform zoom control of the lens device 102. Reference numeral 106 denotes a portable terminal such as a smartphone, which performs remote control as an external device for the digital camera 101. Reference numeral 104 denotes an access point. The digital camera 101 and the portable terminal 106 can transmit and receive various signals including image data in an infrastructure mode in which connection is established via the access point 104.

  Note that the connection method between the digital camera 101 and the mobile terminal 106 may be an ad hoc mode in which a network is constructed between devices without using an access point.

  In the remote control, the subject image of the subject 105 photographed by the digital camera 101 is confirmed on the portable terminal 106 side, and a release instruction or a zoom instruction is issued on the portable terminal 106 side. When a zoom instruction is given on the portable terminal 106 side, a signal is transmitted to the digital camera 101 and a zoom instruction is given to the power zoom adapter 103 via the lens device 102. The power zoom adapter 103 controls the lens device based on the zoom instruction.

<Hardware configuration of lens device>
Hereinafter, a diagram illustrating a hardware configuration of the mobile terminal 106 according to the first exemplary embodiment of the present invention will be described with reference to FIG.

  Reference numerals 1 and 3 denote photographing lenses, which are illustrated here with two lenses for convenience of explanation, but are actually composed of a larger number of lenses. A diaphragm 2 adjusts the amount of light that has passed through the taking lenses 1 and 3. Reference numeral 13 denotes a focus adjustment circuit which is disposed in the photographing lenses 1 and 3 and performs focus adjustment. Reference numeral 14 denotes an aperture driving circuit, which is disposed in the photographing lenses 1 and 3 and drives the aperture 2. A zoom circuit 32 controls the taking lenses 1 and 3 to change the zoom position. Reference numeral 31 denotes an adapter communication unit that communicates with the lens communication unit 504 of the power zoom adapter 103. As a result, control commands can be transmitted and received between the lens apparatus 102 and the power zoom adapter 103. Specifically, a zoom control instruction notified from the portable terminal 106 via the digital camera 101 is transmitted, or the state of the power zoom adapter 103 is received.

  Reference numeral 35 denotes a CPU, which is a central processing unit that controls each part of the lens device 102. Reference numeral 33 denotes a RAM which is used as a work area for the CPU 35. Reference numeral 34 denotes a ROM which stores a control program for controlling the lens apparatus 102 and the like. A camera communication unit 36 communicates with the digital camera 101. As a result, control commands can be transmitted and received between the lens apparatus 102 and the digital camera 101. Specifically, the state of the lens apparatus 102 is transmitted, or the zoom control instruction notified from the portable terminal 106 is received.

<Configuration of digital camera>
Hereinafter, a diagram illustrating a hardware configuration of the digital camera 101 according to the first embodiment of the present invention will be described with reference to FIG.

  Reference numeral 4 denotes a main mirror, which is set to an inclined state or a retracted state with respect to the photographing optical path according to the observation state of the subject image by the finder system. A sub-mirror 5 reflects the light beam that has passed through the main mirror 4 toward the focus detection lens system 11 and the line sensor 12 located below the camera housing. Reference numeral 6 denotes a shutter. Reference numeral 7 denotes an image sensor. Reference numeral 8 denotes a liquid crystal display unit which is built in the finder and displays a focus plate and a distance measurement frame mark, etc., which are arranged on the planned image planes of the photographing lenses 1 and 3. A pentaprism 9 is a finder optical path changing prism.

  Reference numeral 29 denotes an A / D conversion circuit, which performs A / D conversion on the output of the photometry circuit arranged on the upper part of the finder optical path system. Reference numeral 10 denotes an eyepiece lens, through which the photographer can observe the subject. Reference numeral 11 denotes a focus detection lens system. A line sensor 12 performs focus detection. A mirror driving circuit 15 drives the main mirror 4. Reference numeral 16 denotes a line sensor drive circuit, which drives the line sensor 12. Reference numeral 17 denotes a shutter drive circuit that drives the shutter 6. Reference numeral 18 denotes an image sensor driving circuit that drives the image sensor 7. Reference numeral 19 denotes an A / D conversion circuit that converts an analog image signal output from the image sensor 7 into a digital image signal.

  A signal processing circuit 20 performs signal processing on the digital image signal. A RAM 21 temporarily stores digital image signals and the like. A ROM 22 stores a control program for controlling the digital camera 101 and the like. A compact flash (registered trademark) (CF) 23 is a recording medium for finally recording a digital image signal. Reference numeral 24 denotes a CPU, which is a central processing unit that controls each part of the digital camera 101. A lens communication unit 30 performs lens AF control and zoom control instruction transmission to the lens 31 connected via the lens communication unit.

  A rear liquid crystal display unit (LCD) 25 displays a captured image corresponding to the captured digital image signal, displays a menu for changing a shooting parameter, or displays a live view image. Reference numeral 26 denotes a switch input unit which is linked to the operation of various buttons such as a release switch (release SW) operated by a shutter button 37 shown in FIG. 4, various function buttons, a selection sub dial 38 shown in FIG. Make input.

  The switch input unit 26 sends a corresponding signal to the CPU 24 when the photographer operates the corresponding button. The release SW is composed of a switch having at least two or more contacts, and has a structure in which the state is switched in two stages depending on the amount of pressing, for example. When the release SW is pressed halfway, the first contact (SW1) is selected, and when the release SW is pressed to the end, the second contact (SW2) is selected. When SW1 is selected, shooting preparation operations such as AF (autofocus) and AE (automatic exposure) are performed, and when SW2 is selected, shooting operations and digital image signal creation operations and recording operations are performed.

  A mobile terminal communication unit 27 has an interface such as a LAN (Local Area Network) or USB (Universal Serial Bus), and is connected to an external device such as the mobile terminal 106. Thereby, it is possible to transmit an image photographed by the digital camera 101 and to remotely control the digital camera 101 from an external device.

  Reference numeral 28 denotes a power source serving as a drive source for the digital camera 101, and a rechargeable power source such as a lithium ion battery is generally used.

  Hereinafter, with reference to FIG. 4, FIG. 4 showing an external view of the back side of the digital camera 101 according to the first embodiment of the present invention will be described.

  A shutter button 37 is disposed on the upper surface of the casing of the digital camera 101. Further, a selection sub-dial 38, a live view start / end button 42, a back liquid crystal display unit 25 for confirming a photographed image and displaying a function menu are disposed on the back surface of the casing. Operation information such as various switches and dials is sent from the switch input unit 26 to the CPU 24, and the CPU 24 controls the digital camera 101 according to the state and the state of the operated button.

<Hardware configuration of power zoom adapter>
Hereinafter, a diagram illustrating a hardware configuration of the power zoom adapter 103 according to the first embodiment of the present invention will be described with reference to FIG.

  The power zoom adapter 103 includes a CPU 500, a gear driving unit 503, a ROM 501, a RAM 502, and a lens communication unit 504. The CPU 500 comprehensively controls processing executed by the power zoom adapter 103. The RAM 502 is used as a work area for the CPU 500. The ROM 501 stores a control program executed by the CPU 500. The lens communication unit 504 communicates with the adapter communication unit 31 of the lens device 102. As a result, control commands can be transmitted and received between the lens apparatus 102 and the power zoom adapter 103. Specifically, a zoom control instruction is received or the status of the power zoom adapter 103 is transmitted.

<Hardware configuration of mobile terminal>
Hereinafter, with reference to FIG. 6, a diagram illustrating a hardware configuration of the portable terminal 106 according to the first embodiment of the present invention will be described.

  Examples of the portable terminal 106 include a mobile phone, a PDA (Personal Digital Assistant), a portable AV player, an electronic book, an electronic dictionary, and the like in addition to the above-described smart phone and tablet terminal. The mobile terminal 106 includes a CPU 600, a flash memory 601, and a RAM 602. Further, a built-in camera 603, a microphone 604, a speaker 605, an earphone 606, a touch panel 610, a liquid crystal display unit 611, a switch 612, a camera communication unit 613, an external interface 614, and a power source 615 are provided. Further, some include a GPS (Global Positioning System) sensor 607, an electronic compass 608, and the like. In addition, a call antenna, a call communication module, or the like may be provided.

  The CPU 600 controls the processes executed by the mobile terminal 106 in an integrated manner. The RAM 602 is used as a work area of the CPU 600 and temporarily stores various data such as contents processed by the CPU 600 and various application programs. The flash memory 601 stores various contents such as digital photograph images and moving images taken by the built-in camera 603, various control programs executed by the CPU 600, and various application programs.

  The liquid crystal display unit 611 is an LCD such as a TFT (Thin Film Transistor) or an OELD (Organic Electro-Luminescence Display), for example, and displays an application UI (User Interface). Further, the liquid crystal display unit 611 is provided integrally with the touch panel 610.

  The touch panel 610 detects a user's touch operation in a state where a photograph or a GUI (Graphical User Interface) is displayed by executing the application, and notifies the CPU 600 of the touch operation. As an operation method of the touch panel 610, for example, a resistance film method or a capacitance method is used, but other methods may be used. The touch panel 610 enables the user to select a photo and display it on the full screen or to enlarge or reduce the image by pinching in or out while executing a photo display application.

  The switch 612 receives a user operation that cannot be input on the touch panel 610, such as a power switch and a start button, and transmits an input signal to the CPU 600. The earphone 606 and the speaker 605 output audio signals recorded in the flash memory 601 or the like or input from the camera communication unit 613 or the external interface 614 or the like.

  The camera communication unit 613 performs communication processing with other devices via a network such as the Internet or a LAN. The camera communication unit 613 may include a wireless LAN module or a WWAN (Wireless Wide Area Network) module. The external interface 614 exchanges applications and content data according to various standards such as USB and HDMI (registered trademark) (High-Definition Multimedia Interface). The power source 615 is a power source for the portable terminal 106 and is generally a rechargeable power source such as a lithium ion battery.

  Next, a zoom operation instruction method from a mobile terminal in a moving image according to the present invention will be described.

  When a zoom instruction is given from the portable terminal to the lens of the camera, it is possible to specify the speed when performing the zoom operation of the lens and to specify the direction of moving the lens to the tele or wide side.

  A GUI as shown in FIG. 7 is displayed on the liquid crystal display unit 611 of the portable terminal, and the zoom speed and direction can be specified in stages. The operation buttons 71 and 72 on the GUI in FIG. 7 can be used to instruct which direction the zoom is to be performed on the tele side or the wide side, and the speed at which the zoom operation is performed can be specified by continuously pressing the button. It is like that.

  The GUI shown in FIG. 7 indicates that 10 speeds can be designated for each of the tele side and the wide side, and that the zoom instruction is given to the tele side at the speed of the 5th stage.

  A zoom instruction designated on the GUI displayed on the liquid crystal display unit of the portable terminal is transmitted to the camera via the camera communication unit 613. The camera that has received the zoom instruction issues a zoom instruction to the power zoom adapter via the lens, and a desired zoom operation is performed.

  Next, a zoom operation instruction from the mobile terminal in the moving image according to the present invention will be described.

  As shown in FIG. 7, the lens connected to the camera can instruct zoom speeds in 10 steps on the tele side and the wide side at normal times.

  In the camera according to the present embodiment, when an instruction for zoom operation is received from the mobile terminal during exposure by photographing, the CPU 24 in the camera determines whether exposure is in progress, and if it is determined that exposure is in progress. The zoom execution instruction received from the mobile terminal is discarded.

  This prevents blurring of the subject due to the zoom operation during exposure.

  Next, processing when a zoom instruction is received from the portable terminal will be described using the flowchart of FIG.

  When a zoom execution instruction is received from the mobile terminal in S901, the maximum speed (x) for moving the lens connected to the camera is acquired in S902. The maximum speed of the lens is calculated by calculating the maximum speed at which the power zoom adapter can operate when zoom information is acquired by acquiring information about the lens connected by the lens communication unit 504. In this embodiment, the maximum lens speed can be specified in 10 steps.

  In step S903, it is determined whether the camera is recording a moving image. If it is determined that the movie is not being recorded, the process proceeds to S909, and the maximum lens speed (x) acquired in S902 is applied as the maximum execution speed of the lens that is currently operable. In S908, the mobile terminal is notified that the zoomable execution speed of the 10-stage lens can be specified, and the mobile terminal displays the received zoomable execution speed on the GUI displayed on the liquid crystal display unit (FIG. 7). ).

  If it is determined in S903 that a moving image is being recorded, the frame rate (a) of the moving image captured by the camera is set in S904, and the shutter speed (tv) for shooting for each frame at S905 is set. Value acquisition is performed.

  The lens zoom operation during the exposure time at the time of shooting from the frame rate (a) of the moving image acquired in S906, the shutter speed (tv), and the zoom maximum speed (x) of the lens attached to the camera acquired in S902 The maximum zoom execution speed (y) of the lens when the lens is prohibited is calculated.

  A method of calculating the maximum zoom execution speed (y) will be described later.

  In this embodiment, the maximum zoom execution speed (y) is halved compared to the case where the zoom operation is performed even during shooting by prohibiting the zoom operation during the exposure section by moving image shooting. Therefore, the maximum speed of the lens cannot be increased from the normal 10 steps to the 5 steps, which is 1/2.

  In S907, the zoom execution maximum speed (y) obtained in S906 is applied as the maximum execution speed of the lens that is currently operable. In S909, the mobile terminal is notified that the zoomable execution speed of the five-stage lens can be specified, and the mobile terminal displays the received zoomable execution speed on the GUI displayed on the liquid crystal display unit (FIG. 8). ).

  A method of calculating the maximum zoom execution speed (y) will be described with reference to FIG.

  A section vd in FIG. 10 is a one-frame VD section at the frame rate of the moving image being shot. A section tv in FIG. 10 is an exposure time of one frame shot in the VD section. A section z in FIG. 10 represents a section in which the lens can perform zooming within the VD section.

  When the zoom operation during the exposure time is not prohibited, the zoom operation can be performed in all sections of vd, and the acquired zoom maximum speed (x) of the lens can be executed as it is.

  On the other hand, when the zoom operation is prohibited in the exposure section during moving image recording, the zoom execution maximum speed (y) is calculated from the ratio between the exposure time tv and the section z in which zoom execution is possible.

  For example, when the times of the exposure section vd and the zoomable section z are the same, the maximum zoom execution speed (y) in this embodiment is a value that is ½ of the maximum zoom speed (x).

  As described above, when the zoom operation is prohibited during the exposure time by photographing, it is possible to notify the user of the limitation of the execution speed due to the decrease in the zoom execution speed. As a result, the user can issue a zoom execution instruction without a sense of incongruity.

  Next, a method for instructing a zoom operation from the portable terminal during the time-lapse shooting section in the present invention will be described.

  FIG. 13 shows a setting GUI for a camera when performing time-lapse shooting.

  Items to be set include “number of shots”, “shooting interval” for setting a shooting interval, and “shutter speed” that is an exposure time for shooting. In this embodiment, the exposure is determined by giving priority to the “shutter speed”.

  Next, with reference to FIG. 11, a description will be given of a zoom instruction from the mobile terminal during the time lapse in this embodiment.

  In the camera according to the present embodiment, when an instruction for zoom operation is received from the mobile terminal during exposure by photographing, the CPU 24 in the camera determines whether exposure is in progress and determines that exposure is in progress. In such a case, the zoom instruction received from the portable terminal is prohibited. This prevents blurring of the subject due to the zoom operation during exposure.

  Next, processing when a zoom instruction is received from the mobile terminal will be described using the flowchart of FIG.

  When a zoom execution instruction is received from the portable terminal in S1101, the zoom execution magnification (x) of the lens connected to the camera is calculated in S1102. As for the maximum speed of the lens, the power zoom adapter acquires information on the lens connected by the lens communication unit 504, and calculates information on the operable zoom magnification and the current lens operation position when performing the zoom operation.

  In step S1103, it is determined whether the camera is shooting time-lapse. If it is determined that time-lapse shooting is not in progress, the process advances to step S1109, and the zoom executable magnification (x) of the lens calculated in step S1102 is applied as the zoom executable magnification of the currently operable lens. In S1108, the executable zoom magnification and the current zoom position of the lens are notified to the mobile terminal, and the mobile terminal displays the received information on the GUI displayed on the liquid crystal display unit (see FIG. 13). In this embodiment, the GUI displayed on the liquid crystal display unit on the portable terminal displays that the zoom execution magnification is up to 4 times and the current zoom position is 2 times.

  If it is determined in S1103 that a moving image is being recorded, the setting value of the shooting interval (a) for time-lapse shooting with the camera in S1104 and the shutter speed (tv) at the time of shooting are acquired in S1105. .

  Based on the shooting interval (a), shutter speed (tv) of time-lapse shooting acquired in S1106, and the zoomable magnification (x) of the lens attached to the camera acquired in S1102, the lens zoom operation is not performed during the exposure time at the time of shooting. The zoomable execution magnification (y) of the lens in this case is calculated.

  A method of calculating the zoomable execution magnification (y) in S1106 will be described later.

  In S1107, the zoomable execution magnification (y) obtained in S1105 is applied as the zoomable execution magnification of the currently operable lens. In S1108, the executable zoom magnification and the zoom position of the current lens are notified to the portable terminal, and the portable terminal displays the received zoomable execution speed on the GUI displayed on the liquid crystal display unit (see FIG. 14). In this embodiment, the zoom execution magnification can be up to 4 times on the GUI displayed on the liquid crystal display unit on the mobile terminal, but since it can only be executed up to 2 times within the interval of time lapse shooting, it can be from 2 times to 4 times. It is expressed in dotted lines so that it can be seen that the magnification cannot be set.

  A method of calculating S1106 zoom executable magnification (y) will be described with reference to the flowchart of FIG.

  In S1201, the time (T1) until the maximum zoom is executed up to the zoom execution magnification (x) is calculated from the zoom execution speed of the lens.

  In S1202, the lens zoom operation possible time (T2) within the shooting section of the time lapse shooting is calculated from the set time lapse shooting interval and the shutter speed.

  In S1203, the time until the maximum zoom is executed (T1) is compared with the lens zoom operation possible time (T2) within the shooting interval, and the lens zoom operation possible time (T2) within the shooting interval is more sufficient. If it is larger, S1206 zoom execution magnification (x) is applied as the zoom execution magnification (y). When the time (T1) until the maximum zoom is performed does not fall within the lens zoom operation possible time (T2) within the photographing section, the process proceeds to S1204, and within S within the lens zoom operable time (T2) within the photographing section. To calculate the zoomable magnification (z).

  The zoomable magnification (z) calculated in S1205 is applied as the zoom executable magnification (y).

  As described above, when the zoom operation is prohibited during the exposure time by photographing, it is possible to notify the user of the maximum zoom magnification that can be zoomed within the time-lapse photographing interval. This makes it possible to issue a zoom execution instruction without a sense of incongruity.

4, 5, 6, 7, 8, 9, 10, 11, 12, 15, 16, 17, 18, 19, 20 Imaging means, 30 Lens information acquisition means, 30, 24 Lens zoom control means,
16, 24 Exposure state determination means

Claims (3)

Imaging means (4, 5, 6, 7, 8, 9, 10, 11, 12, 15, 16, 17, 18, 19, 20) for taking pictures at regular intervals, such as video recording and time lapse photography, and a lens Lens information acquisition means (30) for acquiring information on the zoom position, zoom magnification upper limit, and zoom drive step amount necessary for the zoom control as first lens zoom control information, and a lens zoom instruction. Lens zoom control means (30, 24), exposure state judgment means (16, 24) for judging whether exposure is being performed when receiving a zoom instruction from the lens zoom control means, photographing interval and exposure in photographing Calculation means (S906, 1106) for calculating the zoom controllable time from the time difference, and control within the zoom controllable time from the zoom controllable time and the first lens zoom control information Lens zoom control information limiting means (FIG. 12) for generating second lens zoom control information limited to an effective zoom amount, and notifies the zoom control means of the limited lens zoom control information, and the exposure state determination means When it is determined that exposure is in progress, the lens zoom control means performs control while restricting zoom control so as not to execute the zoom operation. The lens zoom control information limiting means calculates the zoom controllable time from the difference between the shooting interval and the exposure time in shooting, and sets the zoom magnification acquired as the first lens zoom control information to a magnification that can be zoomed within the zoom controllable time. 2. The limited second lens zoom control information is calculated, the calculated limited zoom magnification is notified to the zoom control means as lens zoom control information, and the maximum zoomable magnification is limited. The imaging device described in 1. The lens zoom control information limiting unit calculates a zoom controllable time from a difference between a shooting interval and an exposure time in shooting in an apparatus that performs a zoom operation by designating a first zoom speed and direction, and a first zoom A second limited zoom speed is calculated from the speed performance and the zoom controllable time. The imaging apparatus according to claim 1, wherein the calculated limited zoom speed is notified to the zoom control unit as lens zoom control information, and the maximum zoomable speed is limited.