JP2018109794A - Electronic device, control method therefor, program, and recording medium - Google Patents

Abstract

The ease of use of a zoom operation based on a set lens position is improved. A zoom operation means (70a) for receiving a zoom operation for changing a zoom position, a control means (50) for controlling the zoom position to be changed according to the zoom operation, and an optical zoom area. And at least one of a magnification (403) from a predetermined zoom position (401) that is neither the optical wide-angle end nor the optical telephoto end to the optical telephoto end, and a magnification (402) from the predetermined zoom position to the optical wide-angle end. Display control means (50) for controlling to display. [Selection] Figure 6

Description

  The present invention relates to an electronic device, a control method thereof, a program, and a recording medium, and more particularly, to an electronic device that performs a zoom operation, a control method thereof, a program, and a recording medium.

  Although the camera includes a zoom mechanism that changes the zoom magnification, in recent years, the camera has been widened and telephoto. Since the subject can be easily confirmed when the angle of view is wide, the camera lens is usually positioned at the wide-angle end when the camera is activated.

  On the other hand, there is a camera that automatically moves a lens to a lens position set by the user when the camera is activated for a user who does not need to position the lens at the wide-angle end when the camera is activated (see Patent Document 1).

JP 2002-112097 A

  However, in the camera of Patent Document 1, since the lens is automatically moved to the lens position set by the user only when the camera is activated, when the lens position is changed after the camera is activated, the lens position after the change is changed. The lens does not automatically move to the lens position set by the user. Therefore, even if it is desired to take a picture at the lens position set by the user, the user has to change the lens position manually every time the picture is taken. For this reason, it may take time to change the lens position and lose a photo opportunity. In other words, there is a problem that it is not possible to take an image at a lens position that is set easily other than at startup.

  An object of the present invention is to provide an electronic device, a control method therefor, a program, and a recording medium that improve the usability of photographing when a user sets an initial lens position.

  In order to achieve the above object, an electronic apparatus according to the present invention includes a zoom operation unit that receives a zoom operation for changing a zoom position, a control unit that controls the zoom position to be changed according to the zoom operation, and an optical zoom. Displaying at least one of a magnification from a predetermined zoom position that is within the region and not the optical wide-angle end or the optical telephoto end to the optical telephoto end, and a magnification from the predetermined zoom position to the optical wide-angle end. And display control means for controlling.

  According to the present invention, usability of a zoom operation based on the set lens position can be improved.

It is a rear view of the digital camera as an electronic device concerning an embodiment of the invention. FIG. 2 is a block diagram schematically showing an internal configuration of the digital camera of FIG. 1. It is a figure used in order to demonstrate the lens position setting screen displayed on the display part in FIG. It is a figure used in order to demonstrate the imaging | photography screen displayed on the display part in FIG. It is a flowchart which shows the imaging | photography mode process performed by the system control part in FIG. 6 is a flowchart showing a procedure of zoom processing executed in S506 of FIG. 6 is a flowchart illustrating a procedure of menu processing executed in S508 of FIG.

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

  FIG. 1 is a rear view of a digital camera 100 as an electronic apparatus according to an embodiment of the present invention.

  The digital camera 100 in FIG. 1 includes a display unit 28, a mode switch 60, a shutter button 61, an operation unit 70, a power switch 72, a connection cable 111, a connector 112, a recording medium 200, a recording medium slot 201, and a recording medium. It has a slot lid 202 and an optical viewfinder 210. The operation unit 70 includes a zoom lever 70a, a menu button 70b, an erase button, a SET button, a display button, four-direction buttons (up button, down button, right button, left button) arranged on a cross, and buttons on the wheel. Composed.

  The display unit 28 is, for example, a liquid crystal display, and displays image data stored in the storage medium 200 and touch panel type operation buttons. The mode switch 60 switches the digital camera 100 to any one of a plurality of operation modes including a shooting mode, a playback mode, and a moving image shooting mode. The shooting mode and the moving image shooting mode further have a plurality of modes. The operation unit 70 receives an operation from the user, and the power switch 72 switches the power on and off. A connection cable 111 connects the digital camera 100 and an external device, and a connector 112 connects the connection cable 111 and the digital camera 100.

  The recording medium 200 is a memory card or a hard disk, and the recording medium slot 201 stores the recording medium 200. The optical viewfinder 210 is used when a user confirms a subject and an angle of view.

  FIG. 2 is a block diagram schematically showing the internal configuration of the digital camera 100 of FIG.

  In FIG. 2, a digital camera 100 includes a microphone 10, an audio control unit 11, a timing generation unit 12, a D / A converter 13, a memory control unit 15, a compression / expansion unit 16, an interface 18, an imaging unit 22, and an A / D. Converter 23, image processing unit 24, display unit 28, power supply unit 30, memory 32, connectors 33 and 34, speaker 39, RTC (Real Time Clock) 40, system control unit 50, system memory 52, nonvolatile memory 56, Mode switch 60, shutter button 61, operation unit 70, power switch 72, power control unit 80, lens drive unit 90, recording medium attachment / detachment detection unit 96, shutter 101, barrier 102, at least one focus lens and at least one zoom A photographing lens 103 including a lens, a communication unit 110, and a connector (in the case of wireless communication, an Tena) with a 112. Further, in FIG. 2, the recording medium 200 includes a recording unit 19, connectors 35 and 36, and an interface 37.

  The audio signal output from the microphone 10 is input to the A / D converter 23 via the audio control unit 11 including an amplifier and the like, and after being converted into a digital signal by the A / D converter 23, It is stored in the memory 32 via the memory control unit 15.

  The audio control unit 11 stores the audio data stored in the recording medium 200 in the memory 32, then converts the audio data into an analog signal by the D / A converter 13, and drives the speaker 39 to output the audio. .

  The timing generation unit 12 is controlled by the memory control unit 15 and the system control unit 50, and also supplies a clock signal and a control signal to the audio control unit 11, the D / A converter 13, the imaging unit 22, and the A / D converter 23. Supply. The D / A converter 13 converts the image display data stored in the memory 32 into an analog signal and supplies the analog signal to the display unit 28.

  The compression / decompression unit 16 performs compression processing and decompression processing on the captured image and the compressed image stored in the memory 32 by adaptive discrete cosine transform (ADCT) or the like, and stores the processed image data in the memory 32. . The image data stored in the memory 32 is filed in the system control unit 50 and stored in the recording medium 200 via the interface 18.

  The interface 18 is an interface for connecting the digital camera 100 and the recording medium 200. The imaging unit 22 includes a CCD, a CMOS element, or the like that converts an optical image into an electrical signal. The A / D converter 23 can convert an analog signal into a digital signal. When the analog signal output from the imaging unit 22 is converted into a digital signal, the analog signal output from the audio control unit 11 is converted into a digital signal. Used when converting to a signal. The output data of the A / D converter 23 is stored in the memory 32 through the image processing unit 24 and the memory control unit 15 sequentially or directly through the memory control unit 15.

  The image processing unit 24 performs resize processing such as predetermined pixel interpolation and reduction and color conversion processing on the data from the A / D converter 23 or the data from the memory control unit 15. The image processing unit 24 performs predetermined calculation processing using image data obtained by imaging, and the system control unit 50 performs exposure control and distance measurement control based on the obtained calculation result. Thereby, AF (autofocus) processing, AE (automatic exposure) processing, and EF (flash pre-emission) processing of the TTL (through-the-lens) method are performed. Further, the image processing unit 24 performs predetermined arithmetic processing using image data obtained by imaging, and performs TTL AWB (auto white balance) processing based on the obtained arithmetic result.

  The image display unit 28 performs display according to the analog signal from the D / A converter 13. For example, display image data stored in the memory 32 is displayed on the image display unit 28 via the D / A converter 13. The image display unit 28 is not necessarily included in the digital camera 100. The digital camera 100 can be connected to an internal or external display device and has at least a display control function for controlling display of the display device. That's fine. The power supply unit 30 includes a primary battery such as an alkaline battery or a lithium battery, a secondary battery such as a NiCd battery, a NiMH battery, or a Li battery, an AC adapter, or the like.

  The memory 32 stores image data obtained by converting an analog signal output from the imaging unit 22 into a digital signal and image data to be displayed on the image display unit 28. The memory 32 stores audio data recorded by the microphone 10, a still image, a moving image, and a file header of an image file. Further, the memory 32 temporarily stores data displayed on the image display unit 28 (video memory), and has a sufficient storage capacity for storing a predetermined number of still images, a moving image and audio for a predetermined time. ing.

  The connectors 33 and 34 connect the power supply unit 30 and the power supply control unit 80. The RTC 40 measures the date and time. In addition, the RTC 40 has a power supply unit therein separately from the power supply control unit 80, and can keep a timed state even when the supply of electricity by the power supply unit 30 is interrupted.

  The connectors 35 and 36 are connectors for connecting the recording medium 200 and the interface 18. The recording medium attachment / detachment detection unit 96 detects whether or not the recording medium 200 is connected to the connectors 35 and 36.

  The system control unit 50 controls the entire digital camera 100. In addition, the system control unit 50 executes a program stored in the nonvolatile memory 56 to perform each process in the embodiment of the present invention described later. Further, the system control unit 50 acquires the date and time counted by the RTC 40, and executes timer control by setting a system timer.

  The system memory 52 is a RAM, and expands constants and variables for operation of the system control unit 50, programs read from the nonvolatile memory 56, and the like. The nonvolatile memory 56 is an electrically erasable / recordable memory, for example, an EEPROM, and stores constants for operation of the system control unit 50, programs for executing various flowcharts to be described later, and the like.

  The mode changeover switch 60 and the operation unit 70 are operation means for inputting various operation instructions to the system control unit 50.

  An operation mode applied to the digital camera 100 is set in accordance with an operation on the mode switch 60. When the shooting mode is set among the operation modes, a plurality of modes included in the shooting mode, for example, an auto shooting mode, an auto scene discrimination mode, a manual mode, various scene modes for setting shooting for each shooting scene, and a program AE Any one of the mode and the custom mode is set by operating the operation unit 70. The operation mode and the shooting mode may be switched by the mode switch 60 or may be switched by another operation member.

  The shutter button 61 generates the first shutter switch signal SW1 when the pressing is interrupted halfway (so-called half-pressed state), and the second shutter switch signal SW2 when fully pressed (so-called fully pressed state). Occur.

  When the generation of the first shutter switch signal SW1 is detected, the system control unit 50 starts operations such as AF processing, AE processing, AWB processing, and EF processing. Further, when the generation of the second shutter switch signal SW2 is detected, a series of imaging processing operations from reading the signal from the imaging unit 22 to storing the image data in the recording medium 200 is started by the system control unit 50. .

  When each button constituting the operation unit 70 is pressed, a function corresponding to the pressed button is executed by the system control unit 50. For example, when the menu button 70 b is pressed, a shooting / setting screen is displayed on the image display unit 28.

  The power control unit 80 includes a battery detection circuit, a DC-DC converter, a switch circuit that switches a block to be energized, and the like. The power supply control unit 80 detects the presence / absence of a battery, the type of battery, and the remaining battery level, and controls the DC-DC converter based on the detection result and an instruction from the system control unit 50 to obtain a necessary voltage. This is supplied to each part including the recording medium 200.

  The barrier 102 covers the imaging unit 22, thereby preventing the imaging system including the lens 103, the shutter 101 having a diaphragm function, and the imaging unit 22 from being dirty or damaged.

  The communication unit 110 is an interface for connecting the digital camera 100 and an external device, and employs various communication methods such as RS232C, USB, IEEE1394, P1284, SCSI, modem, LAN, and wireless communication.

  The connector 112 is a connector for connecting the digital camera 100 to other devices via the communication unit 110, and serves as an antenna during wireless communication. The recording medium 200 includes a recording unit 19 configured by a semiconductor memory, a magnetic disk, or the like. The recording unit 19 is connected to the digital camera 100 via connectors 35 and 36 and an interface 37.

  FIG. 3 is a diagram used to explain the lens position setting screen 300 displayed on the display unit 28 in FIG.

  FIG. 3A shows a display example of a shooting / setting screen displayed on the display unit 28 when the menu button 70b in FIG. 1 is pressed, and the shooting / setting screen of FIG. including. When the lens position setting button 301 is pressed, a lens position setting screen 300 is displayed (FIG. 3B). On the lens position setting screen 300, the zoom bar 302, the zoom bar display unit 303, the wide-angle end icon 304 (first display item), and the telephoto end icon 305 (second display) are superimposed on the through image 310 displayed during the through display. Display item), zoom magnification 306, dialog 307, enter button 308, and cancel button 309 are displayed. The through display means that an image captured by the imaging unit 22 is displayed on the display unit 28 in almost real time.

  The zoom bar 302 indicates the lens position of the zoom lens in the optical zoom area, and the zoom bar display unit 303 displays the zoom bar 302. The zoom bar display unit 303 may also display an electronic zoom area. The wide-angle end icon 304 is an icon that displays the wide-angle end of the zoom lens, and the telephoto end icon 305 is an icon that displays the telephoto end of the zoom lens. In the embodiment of the present invention, the wide-angle end icon 304 and the telephoto end icon 305 are both the wide-angle end and the telephoto end in the optical zoom region, but the telephoto end may be the telephoto end in the electronic zoom region.

  The zoom magnification 306 displays the zoom magnification when the lens position is at the optical telephoto end with reference to the lens position of the zoom lens desired by the user set by the user (hereinafter referred to as “customized lens position”). The dialog 307 displays a message to the user, and in FIG. 3B, a request for setting the zoom operation of the customized lens position is displayed as a message. The determination button 308 is pressed when determining the customized lens position, and the cancel button 309 is pressed when canceling the setting of the customized lens position.

  The user performs a zoom operation after the lens position setting screen 300 is displayed, and when the position of the zoom lens reaches the user desired lens position (FIG. 3C), the user stops the zoom operation and presses the enter button. And set the customized lens position. The customized lens position is set to a position desired by the user in the optical zoom region. An example of a 10 × zoom lens capable of zooming at a focal length of 4.3 mm to 43 mm (view angle corresponding to 24 mm to 240 mm in terms of 35 mm film) in FIG. In this case, since the zoom bar 302 is long, it can be seen that the customized lens position is not set to the focal length of 4.3 mm which is the wide-angle end, but is set between the wide-angle end and the telephoto end of the optical zoom. In this example, the customized lens position is set to a focal length of 8.6 mm (an angle of view equivalent to 48 mm in terms of 35 mm film). By displaying 5 times in the zoom magnification 306, it can be seen that the optical zoom is 5 times up to a focal length of 43 mm (viewing angle equivalent to 240 mm in terms of 35 mm film) at the telephoto end. That is, even if the zoom lens has a magnification of 10 times, the user can easily understand that the zoom-in can only be performed up to 5 times from the current customized lens position. On the other hand, in the case of this customized lens position, it is possible to zoom out to 1/2 times (focal length 4.3 mm at the wide angle end) when viewed from this customized lens position (focal length 8.6 mm).

  In the lens position setting screen 300, the zoom magnification 306 at the telephoto end when the customized lens position is used as a reference is displayed, so that the maximum magnification at which the captured image can be enlarged at the customized lens position can be easily grasped. The usability for the camera user can be improved. The customized lens position may be set for each shooting mode.

  FIG. 4 is a diagram used for explaining the photographing screen 400 displayed on the display unit 28 in FIG.

  FIG. 4A is a display example of the photographing screen 400 displayed on the display unit 28 in FIG. In the photographing screen 400 of FIG. 4A, as with the lens position setting screen 300 of FIG. 3B, the zoom bar 302, the zoom bar display unit 303, and the wide angle are superimposed on the through image 404 displayed during the through display. An end icon 304 and a telephoto end icon 305 are displayed. Further, the user icon 401 (third display item), the user-based wide-angle end zoom magnification 402, the user-based telephoto end zoom magnification 403, and the user-based zoom magnification 405 are displayed on the shooting screen 400.

  The user icon 401 is an icon for displaying a customized lens position, and the user-based wide-angle end zoom magnification 402 is a zoom magnification up to the wide-angle end of the zoom lens when the customized lens position is used as a reference. The user-based telephoto end zoom magnification 403 displays the zoom magnification up to the telephoto end of the zoom lens when the customized lens position is used as a reference. The user-based zoom magnification 405 displays the zoom magnification at the lens position where the zoom lens is currently located when the customized lens position is used as a reference.

  FIG. 4A shows a 10 × zoom lens capable of zooming at a focal length of 4.3 mm to 43 mm (an angle of view equivalent to 24 mm to 240 mm in terms of 35 mm film), and a customized lens position at a focal length of 8.6 mm (35 mm film). This is a display example when the angle of view equivalent to 48 mm is set. In the case of the customized lens position, it is possible to zoom out to 1/2 times (focal length 4.3 mm at the wide angle end) when viewed from the customized lens position (focal length 8.6 mm). Therefore, 1/2 is displayed in the user-standard wide-angle end zoom magnification 402. If the user is shooting at the customized lens position and the subject does not fit in the shooting range, all the desired subjects can be zoomed out on the spot without moving and changing the shooting position. It can be seen that there is a possibility of being within the angle of view.

  When either the wide-angle end icon 304 or the telephoto end icon 305 overlaps the user icon 401 (that is, when the customized lens position is set to the wide-angle end or the telephoto end), either one may be displayed. For example, the case where the wide-angle end icon 304 and the user icon 401 overlap is shown in FIGS. 4B and 4C.

  4 (b) and 4 (c) show a 10x zoom lens capable of zooming at a focal length of 4.3 mm to 43 mm (angle of view equivalent to 24 mm to 240 mm in terms of 35 mm film), and the customized lens position is the focal length. This is a display example in the case of 4.3 mm (angle of view equivalent to 24 mm in terms of 35 mm film). Further, whether the display of FIG. 4B or the display of FIG. 4C is selected may be selected based on whether or not the customized lens position is set on the lens position setting screen 300 described above. . That is, in the lens position setting screen 300, when the user deliberately sets the customized lens position to the wide-angle end, the wide-angle end is set as shown in FIG. 4B to indicate that the position set by the user is the wide-angle end. A user icon 401 is displayed at the end. On the other hand, when the user has not set the customized lens position on the lens position setting screen 300 and the initial zoom position is at the wide angle end which is the default value, as shown in FIG. A wide-angle end icon 304 is displayed at the end.

  In the shooting screen 400, the wide-angle end icon 304 indicates the wide-angle end of the lens position, the telephoto end icon 305 indicates the telephoto end of the lens position, and the user icon 401 indicates the customized lens position. As a result, the user can visually grasp the relative relationship between the lens positions, so that the user can easily determine the desired lens position.

  In addition, the shooting screen 400 displays the zoom magnification at the wide-angle end when the customized lens position is the reference (the user-standard wide-angle end zoom magnification 402), and the zoom magnification at the telephoto end when the customized lens position is the reference. (User-based telephoto end zoom magnification 403) is displayed. Accordingly, the user can easily grasp the variable range of the zoom magnification when the customized lens position is used as a reference.

  Further, on the shooting screen 400, when the wide-angle end icon 304 or the telephoto end icon 305 and the user icon 401 overlap, either one is displayed. Accordingly, the wide-angle end icon 304 or the telephoto end icon 305 and the user icon 401 are not displayed in a superimposed manner, and the user can be prevented from being confused.

  FIG. 5 is a flowchart showing the shooting mode processing. When the digital camera 100 is activated and set to the shooting mode, this processing is started. The shooting mode process of FIG. 5 is executed by the system control unit 50 developing the program stored in the nonvolatile memory 56 in the system memory 52.

  In S501, the system control unit 50 refers to the setting information stored in the nonvolatile memory 56, and determines whether or not the customized lens position is set. When the customized lens position is set, the process proceeds to S502, and when the customized lens position is not set, the process proceeds to S503.

  In S502, the system control unit 50 controls the lens driving unit 90 to drive the zoom lens, and moves the zoom lens to the customized lens position (initial zoom position set by the user) read from the nonvolatile memory 56. When the customized lens position is set for each shooting mode, the camera moves to the customized lens position corresponding to the current shooting mode. As described above, when the customized lens position is set, the initial zoom position when the photographing mode is activated can be set as a user-desired position.

  In step S503, the system control unit 50 controls the lens driving unit 90 to drive the zoom lens, and moves the zoom lens to the default initial zoom position. Assume that the default initial zoom position is at the wide-angle end. Although the default initial zoom position is the wide-angle end here, the zoom position is not limited to this and may be other zoom positions. For example, the default initial zoom position may be a position where the difference (parallax) between the captured image and the field of view confirmed through the optical viewfinder 210 is the smallest.

  In S504, the system control unit 50 performs live view display of the image captured by the imaging unit 22 on the display unit 28 in real time (through display). In addition, as described with reference to FIGS. 4A to 4C, the customized lens position and the current zoom position from the wide-angle end (wide end) to the telephoto end (tele end) are displayed. At this point, because of the initial display, the customized lens position matches the current zoom position.

  In S505, the system control unit 50 determines whether or not the operation of the zoom lever 70a (zoom operation) has been performed.

  If the zoom operation is performed as a result of the determination in S505, the zoom lens is moved by executing zoom processing shown in FIG. 6 described later (S506), and the process returns to S505. When the zoom operation is not performed, it is determined whether or not a menu operation for pressing the menu button 70b configuring the operation unit 70 is performed (S507).

  If the menu operation is performed as a result of the determination in S507, the menu processing of FIG. 7 described later is executed to set the lens position of the zoom lens (S508), and the process returns to S505. When the menu operation is not performed, it is determined whether or not a specific subject (for example, a human face) is detected in the through-display image (S509).

  If a specific subject is detected as a result of the determination in S509, subject information relating to the subject such as the position coordinates, size (width, height), detected number, and reliability coefficient of the detected subject is stored in the system memory 52. (S510). On the other hand, when a specific subject is not detected, 0 is set in subject information such as the position coordinates, size (width, height), detected number, reliability coefficient, etc. of the subject (S511), and the system memory 52 is set. Store (S510).

  Next, it is determined whether or not the first shutter switch signal SW1 is generated (S512). When the first shutter switch signal SW1 is not generated, the process returns to S505, and when the first shutter switch signal SW1 is generated, a distance measurement process for measuring the distance to the subject is executed to focus the focus lens. Is set to the subject (autofocus) and photometric processing for measuring the brightness of the subject is executed to determine the aperture value and shutter speed to prepare for shooting (S513). Whether the second shutter switch signal SW2 is generated or not Is determined (S514).

  If the second shutter switch signal SW2 is not generated as a result of the determination in S514, it is determined whether or not the first shutter switch signal SW1 is generated (S515). As a result of the determination in S515, when the first shutter switch signal SW1 is generated, the process returns to S514. Thereby, in a state where the pressing of the shutter button 61 is interrupted in the middle, the state where the focus lens is focused on the subject is maintained, so that the photographing operation can be immediately started. On the other hand, if the result of determination in S515 is that the first shutter switch signal SW1 has not been generated, it is determined whether or not an instruction to turn off the power switch 72 has been issued (S516).

  As a result of the determination in S516, when the instruction to turn off the power switch 72 has not been given, the process returns to S505, and when the instruction to turn off the power switch 72 has been given, this process ends.

  On the other hand, if the result of determination in S514 is that the second shutter switch signal SW2 has been generated, the display state of the display unit 28 is set to fixed color display, for example, black (S517). Next, the image data obtained through the imaging unit 22 and the A / D converter 23 is stored in the memory 32 via the memory control unit 15, and the image stored in the memory 32 is read out to visualize the image. The photographing process to be executed is executed (S518). Next, the image data obtained by executing the photographing process is displayed on the display unit 28 (quick review display) until a preset time has elapsed (S519), and is stored in the recording medium 200 as an image file (S520). ), It is determined whether or not the second shutter switch signal SW2 is generated (S521).

  As a result of the determination in S521, the quick review display is continued when the second shutter switch signal SW2 is not generated, and the preset quick review display time has elapsed when the second shutter switch signal SW2 is generated. It is determined whether or not it has been done (S522).

  If the display time has not elapsed as a result of the determination in S522, the display waits until the display time elapses. If the display time has elapsed, the quick review display is switched to through display (shooting standby) (S523), and the process goes to S515. move on. Note that this processing ends when the mode switch 60 is used to switch from the shooting mode to another mode in addition to when the power switch 72 is instructed to be turned off.

  FIG. 6 is a flowchart showing the zoom processing procedure executed in S506 of FIG. The processing in FIG. 6 is executed by the system control unit 50 expanding the program stored in the nonvolatile memory 56 in the system memory 52.

  In FIG. 6, it is determined whether or not the zoom operation is performed toward the wide angle side (S601). As a result of the determination in S601, when the zoom operation is performed toward the wide angle side, the zoom lens is moved to the wide angle side (S602). On the other hand, when the zoom operation is not performed toward the wide angle side (to the telephoto side) When operated, the zoom lens is moved to the telephoto side (S603).

  Next, in S604, it is determined whether or not the zoom operation has been completed. The end of the zoom operation is, for example, the case where the zoom lever 70a is released (the operation to the zoom lever 70a is released). When the zoom lever 70a is released, the process proceeds to S606, and the movement of the zoom lens is stopped (zoom is stopped). If the zoom lever has not been released, the process proceeds to S605.

  Here, the example of performing the zoom operation by operating the zoom lever 70a has been described, but the method of performing the zoom operation is not limited to this, and the zoom operation may be performed by pressing the zoom button, and the touch panel is touched. Then, the zoom operation may be performed. For example, when the zoom button is pressed, the zoom position moves as long as the zoom button is pressed at positions other than the wide-angle end, the telephoto end, and the customized lens position. The user may confirm the through image 310 and release the zoom button when the desired zoom position is reached. When the zoom button is continuously pressed to change the zoom position, in S605, it is determined whether or not a predetermined time (about several hundred msec) has elapsed since the zoom button was stopped. When the time elapses, it may be considered that the zoom operation has been completed and the process proceeds to S606.

  In step S605, the system control unit 50 determines whether the zoom position has reached the customized lens position. When the zoom position becomes the customized lens position, the process proceeds to S606, and the driving of the zoom lens according to the zoom operation (hereinafter referred to as “zoom drive”) is stopped, and when the zoom position is not the customized lens position, S601. Return to, and continue zoom drive. In other words, when the zoom position is changed to the customized lens position by executing the zoom drive, the zoom drive is stopped even if the operation of the zoom lever 70a is not finished (even if the user does not release the finger from the zoom lever 70a). To do.

  After zooming stops at the customized lens position, once the zoom lever 70a zoom lever operation is finished and the zoom lever is operated again in the same direction, the zoom is driven to the wide angle side or the telephoto side across the customized lens position. Can do. In this way, the zoom drive is stopped at the customized lens position even during the zoom operation, so the user can easily adjust the zoom position to the customized lens position that he / she has registered without performing fine zoom adjustment. Can do. Accordingly, it is possible to quickly and easily perform an operation of zooming up from the customized lens position and moving the zoom to the telephoto side, and an operation of returning the zoom position to the customized lens position. That is, the customized lens position and the telephoto side can be moved quickly and easily.

  Further, it is possible to quickly and easily perform an operation of zooming out from the customized lens position to the wide-angle side and moving the zoom to the wide-angle side and returning the zoom position to the customized lens position. That is, the customized lens position and the wide-angle side can be moved quickly and easily. In this manner, the user can perform shooting using the customized lens position as the basic zoom position.

  In the above example, when the zoom position is changed to the customized lens position by executing the zoom drive, even if the operation of the zoom lever 70a is not finished (even if the user does not release the finger from the zoom lever 70a). Although an example in which zooming across the zoom customized lens position cannot be performed unless the zoom driving is stopped, the operation of the zoom lever is once ended, and the operation of the zoom lever is started again is described, the present invention is not limited to this. Alternatively, the zoom drive may be stopped when the customized lens position is reached, and zooming may be performed across the customized lens position if the operation is continued without releasing the zoom lever 70a for a predetermined time (approximately several seconds) after the stop.

  In the embodiment of the present invention, whether or not the customized lens position has been reached in S605 regardless of whether the operation is a wide-angle operation (zoom-out operation) or a telephoto operation (zoom-in operation). However, the example of stopping the zoom drive is not limited to this example. You may make it stop at a customized lens position, only when one operation of the operation to a wide angle side (zoom-out operation) and the operation to a telephoto side (zoom-in operation) is performed.

  For example, when an operation from the telephoto side to the wide angle side (zoom-out operation) with respect to the customized lens position is performed and the customized lens position is reached, zoom driving is stopped. On the other hand, if the customized lens position is reached from the wide-angle side to the telephoto side (zoom-in operation), the zoom lens is not stopped and the zoom operation is continued without changing the zoom position. You may be able to zoom in to the telephoto side. This facilitates the operation of returning from the telephoto side to the customized lens position, while zooming in with good operability when it is desired to zoom in at once from the wide angle side.

  Furthermore, although an example in which one customized lens position is registered has been described, a different customized lens position may be set for each of a plurality of shooting modes. For example, a scene mode, which is one of the shooting modes, includes a fireworks mode in which fireworks can be vividly shot and a snap shooting mode in which a person can be shot indoors. The user can set different customized lens positions in the fireworks mode and the snap shooting mode. For example, the following settings can be made. That is, in the fireworks mode, the customized lens position is set slightly closer to the telephoto position in order to photograph fireworks floating in the night sky. On the other hand, in the snap shooting mode, the customized lens position is set closer to the wide angle in order to fit many people in a narrow room within the shooting range.

  FIG. 7 is a flowchart showing the menu process executed in S508 of FIG. The processing in FIG. 7 is executed by the system control unit 50 expanding a program stored in the nonvolatile memory 56 in the system memory 52.

  In FIG. 7, first, when the menu button 70b is pressed, a shooting / setting screen (FIG. 3A) on which various settings can be made is displayed on the image display unit 28, and the lens position setting on the displayed shooting / setting screen is displayed. It is determined whether or not the button 301 has been pressed (S701).

  If the lens position setting button 301 is not pressed as a result of the determination in S701, the present process is immediately terminated. If the lens position setting button 301 is pressed, the lens position setting screen 300 (FIG. 3B) is displayed on the image display unit. 28 (S702), it is determined whether or not a zoom operation for determining a customized lens position has been performed (S703).

  If the zoom operation is performed as a result of the determination in S703, the zoom operation is continued until the zoom lens moves to the lens position desired by the user (S708). At this time, the user operates the zoom lever 70 a while confirming the lens position setting screen 300. On the other hand, when the zoom operation is not performed as a result of the determination in S703 (when the zoom operation is finished), it is determined whether or not the set button is pressed (S704).

  As a result of the determination in S704, when the set button is pressed, the lens position at the time of pressing the set button is determined as the customized lens position (S707), and this process is terminated. On the other hand, when the set button is not pressed, it is determined whether or not the menu button 70b is pressed (S705).

  As a result of the determination in S705, when the menu button 70b is pressed, the setting of the customized lens position is stopped (S706), and this process is terminated. On the other hand, if the result of determination in S705 is that the menu button 70b has not been pressed, processing returns to S703.

  According to the processing in FIG. 7, the user sets the customized lens position while confirming the lens position setting screen 300 (S708), so that the zoom position desired by the user can be set as the customized lens position, and thus the user's You can set the zoom position that reflects your intention directly.

  In the processing of FIG. 7, the menu processing for setting the customized lens position by the user has been described. However, when the customized lens position is not set by the processing, the zoom that is frequently used by the user from the operation history accumulated in the digital camera 100 is performed. A lens position corresponding to the magnification may be set as the customized lens position. That is, since it is expected that the user is likely to desire a lens position frequently used by the user at the time of shooting, the customized lens position is set based on the lens position frequently used by the user. As a result, usability for the camera user can be improved.

  In order to realize the embodiment of the present invention, the entire apparatus (digital camera 100) may be controlled by one piece of hardware (for example, the system control unit 50), and a plurality of pieces of hardware share the processing. You may go. Although the present invention has been described in detail based on the above-described embodiment, the present invention is not limited to the above-described embodiment, and various forms within the scope of the present invention are also included in the present invention. It is.

  In the above-described embodiment, the case where the present invention is applied to the digital camera 100 has been described as an example. However, the apparatus to which the present invention is applied is not limited to this. The present invention is applicable to PDAs, mobile phone terminals, tablets, music players, game machines, electronic book readers, and the like.

  In the present invention, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, etc.) of the system or apparatus is programmed. In the process of reading and executing the program, the program and a computer-readable storage medium storing the program may be used.

DESCRIPTION OF SYMBOLS 100 Digital camera 103 Shooting lens 304 Wide angle end icon 305 Telephoto end icon 401 User icon 402 User standard wide angle end zoom magnification 403 User standard telephoto end zoom magnification

Claims (14)

Zoom operation means for accepting a zoom operation for changing the zoom position;
Control means for controlling to change the zoom position according to the zoom operation;
Displays at least one of a magnification from a predetermined zoom position that is within the optical zoom area and not at the optical wide-angle end or the optical telephoto end to the optical telephoto end, and a magnification from the predetermined zoom position to the optical wide-angle end. An electronic device comprising: display control means for controlling as described above. Zoom operation means for accepting a zoom operation for changing the zoom position;
Control means for controlling to change the zoom position according to the zoom operation;
An electronic apparatus comprising: display control means for controlling to display a magnification from a predetermined zoom position that is within the optical zoom region and not at the optical wide-angle end or the optical telephoto end to the current zoom position.   The display control means controls to further display at least one of a magnification from the predetermined zoom position to the optical telephoto end and a magnification from the predetermined zoom position to the optical wide-angle end. The electronic device according to claim 2.   The electronic apparatus according to claim 1, wherein the control unit controls the zoom position to be the predetermined zoom position when the photographing mode is started.   5. The electronic apparatus according to claim 1, further comprising a setting unit configured to set the predetermined zoom position in accordance with a user operation.   5. The electronic apparatus according to claim 1, further comprising a setting unit that sets the predetermined zoom position based on a zoom position that is frequently used in a user's operation history. 6. It further has shooting mode setting means for setting to any of a plurality of shooting modes,
The electronic apparatus according to claim 1, wherein the predetermined zoom position is a position that varies depending on a shooting mode.   8. The display according to claim 1, wherein a display corresponding to the predetermined zoom position is displayed on a bar display area that displays a bar indicating the current zoom position in the zoom area. The electronic device described.   A predetermined icon is displayed at a position corresponding to the predetermined zoom position with respect to the bar display area, a wide-angle end icon is displayed at a position corresponding to the optical wide-angle end, and a position corresponding to the optical telephoto end is displayed. 9. The electronic apparatus according to claim 8, wherein a telephoto end icon is displayed.   The electronic apparatus according to claim 1, wherein the electronic apparatus is an imaging apparatus having an imaging unit. A zoom operation step for accepting a zoom operation to change the zoom position;
A control step for controlling to change the zoom position according to the zoom operation;
Displays at least one of a magnification from a predetermined zoom position that is within the optical zoom area and not at the optical wide-angle end or the optical telephoto end to the optical telephoto end, and a magnification from the predetermined zoom position to the optical wide-angle end. And a display control step for controlling the electronic device. A zoom operation step for accepting a zoom operation to change the zoom position;
A control step for controlling to change the zoom position according to the zoom operation;
A display control step for controlling to display a magnification from a predetermined zoom position that is within the optical zoom area and is not at the optical wide-angle end or the optical telephoto end to the current zoom position. Control method.   The program for functioning a computer as each means of the electronic device as described in any one of Claims 1 thru | or 10.   A computer-readable storage medium storing a program for causing a computer to function as each unit of the electronic device according to any one of claims 1 to 10.