JP2012114541A - Photography system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that a camera does not have means for outputting electronic zooming information to a lens and the lens cannot have a control characteristic by a proper lens to a video which is electronically zoomed even though there is a case where the electronically zoomed video is outputted onto VF of the camera and assist focusing is performed in a photography system having an electronic zooming (EZ) function.SOLUTION: A function outputting electronic zooming information on the VF and electronic zooming information on a camera main line is arranged on the camera. The lens includes means for inputting the electronic zooming information and means for changing operation sensitivity of a focus demand by appropriately using two pieces of electronic zooming information.

Description

  The present invention relates to an imaging system including a lens, a camera, an image display device that displays an image captured by the camera, and a focus operation device that performs a focus operation of the lens.

In high-resolution shooting (high-definition shooting), if the camera viewfinder or monitor screen size is small or the screen resolution is low, focusing with focus demand while viewing the screen becomes difficult. is there.
In order to solve such problems, Patent Document 1 proposes changing the sensitivity of the focus demand according to the type of lens (magnification) and focal length, and Patent Document 2 discloses autofocus and power focus (electric manual). The focus function is switchable, and the display unit includes a control means for displaying a moving image of the subject enlarged at the predetermined magnification with respect to the auto focus when the manual focus is on the display unit. A device has been proposed.

Japanese Patent Laid-Open No. 11-341331 JP 2002-281371 A

  Patent Document 1 proposes changing the sensitivity of the focus demand in accordance with the type (magnification) of the lens and the focal length. Patent Document 2 is a proposal for displaying a moving image of a subject by enlarging at a predetermined magnification when switching to power focus in an imaging apparatus capable of switching between auto focus and power focus (electric manual focus function). However, in Patent Document 1, it is difficult to focus because the focus state on the screen cannot be seen well, such as when the monitor is small or the screen looks small when looking at the monitor from a distance, even if the operating sensitivity of the focus demand is changed. . Also, in Patent Document 2, when the screen is enlarged, the operation sensitivity of the manual focus is not changed, so that it is easy to check the focus state on the monitor, but the operation sensitivity is constant. For this reason, since it becomes the same as the state in which the manual focus operation sensitivity is increased with respect to the size of the screen, the focus adjustment becomes sensitive and it becomes very difficult to adjust.

Accordingly, an exemplary object of the present invention is to provide a photographing system that reduces the focus operation sensitivity in conjunction with the screen enlargement on the video display device, and enables a precise focus operation without a sense of incongruity while viewing the enlarged screen. There is to do.

In order to achieve the above object, the imaging system of the present invention provides:
Optical means for photographing the subject;
Photoelectric conversion means for converting the imaging light flux of the lens device into a video signal;
First display means for displaying a video related to the video signal;
First electronic zoom means for applying an electronic zoom process to the video signal;
First synthesizing means for synthesizing information on the state of the first electronic zoom with the video signal;
A first display means for displaying a first electronic zoom image as a result of the first electronic zoom means and a first composite image as a result of the first combining means;
Second electronic zoom means for applying an electronic zoom process to the video signal;
Second synthesizing means for synthesizing information on the state of the second electronic zoom with the video signal;
Second display means for displaying a second composite image that is a result of the second composition means;
Video output means for outputting a second electronic zoom video as a result of the second electronic zoom means to the outside,
By having an optical state changing means for changing the control of the optical means in accordance with the information about the state of the first electronic zoom and the information about the state of the second electronic zoom,
Since the focus operation sensitivity is changed in conjunction with the enlargement of the screen on the image display device, the cameraman can obtain an effect of realizing an accurate focus operation without feeling uncomfortable while viewing the enlarged screen.

  Further objects and other features of the present invention will be made clear by the preferred embodiments described below with reference to the accompanying drawings.

  According to the present invention, since the focus operation sensitivity is changed in conjunction with the enlargement of the screen on the image display device, it is possible to obtain an effect that the cameraman can realize a precise focus operation without feeling uncomfortable while viewing the enlarged screen.

1 is a block diagram illustrating a configuration of an example of an imaging system of the present invention. FIG. 3 is an operation flowchart of the lens apparatus 1 in the first embodiment. FIG. 3 is an operation flowchart of the camera apparatus 2 in the first embodiment. The operation | movement flowchart figure of the main line video processing apparatus 2 in a 1st Example. The screen image figure of VF204 in a 1st Example (EZ frame change). The screen image figure of VF204 in the 1st example (EZ frame composition photography picture). The screen image figure (EZ picture) of VF204 in the 1st example. The screen image figure of the video display part 305 in a 1st Example (EZ frame synthetic | combination imaging | video). The screen image figure (return image) of VF204 in the 1st example. The operation | movement flowchart figure of the camera apparatus 2 in a 2nd Example. The screen image figure of VF204 in the 2nd example (EZ frame composition photography picture).

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
[Example 1]
FIG. 1 is a block diagram showing the configuration of an example of an imaging system that best exhibits the features of the present invention. Note that configurations not related to the present invention are omitted. Further, in the present invention, a lens system with a single focal length without a zoom mechanism is described as a model, so that a change in shooting angle of view does not occur, but it can also be applied to a lens system with a zoom mechanism.

  In the figure, reference numeral 1 denotes a lens device, 2 denotes a camera device that can be attached to and detached from the lens device 1, and 3 denotes a main line video processing device 3 that processes an image of the camera device 2. In these devices, a cameraman operates the lens devices 1 and 2, and a video effecter (hereinafter referred to as VE) operates the main video device 3 at a location away from the camera device 2.

  First, the lens device 1 includes the following components. 101 is a focus operation means for performing a focus adjustment operation of the lens apparatus 1 by being operated by a cameraman, and 102 is a RET image display switch that is a changeover switch for the cameraman to check either a captured image or a main line image. It is. Reference numeral 103 denotes an EZ operation means for the cameraman to perform an electronic zoom (Electrical Zooming: hereinafter referred to as EZ) operation, and reference numeral 104 denotes an EZ video display switch which is a switch for the cameraman to check the EZ video. Reference numeral 105 denotes a focus lens for adjusting the focus of the lens apparatus 1, and reference numeral 106 denotes a focus position detection unit for detecting focus position information. Reference numeral 107 denotes a focus control unit 101, a RET video display switch 102, an EZ operation unit 103, an EZ video display switch 104, a lens control microcomputer that takes in information from the focus position detection unit 106 and generates a focus drive command to move the focus lens 105 It is. The lens control microcomputer 107 further has an information communication function for transmitting the state of the lens device 1 to the camera device 2 and receiving the state of the camera device 2. Reference numeral 108 denotes a focus actuator for moving the focus lens 105 in accordance with a focus drive command output from the lens control microcomputer 107.

  The camera device 2 includes the following components. Reference numeral 201 denotes a CCD that photoelectrically changes a photographic light beam incident from the lens apparatus 1. Reference numeral 202 denotes a video signal processing unit that processes the output of the CCD 201 into a video signal format, and 203 denotes a video output terminal that outputs a captured video signal output from the video signal processing unit 202 to the main video processing apparatus 3. Reference numeral 204 denotes a VF (view finder) for a cameraman to check an image, and 205 denotes a camera control microcomputer that controls the camera device 2 and communicates with the lens device 1. Reference numeral 206 denotes an EZ frame synthesizing unit that receives a captured video signal that is an output of the video signal processing unit 202 and synthesizes a frame image corresponding to EZ information given from the camera control microcomputer 205. Reference numeral 207 denotes an EZ processing unit that receives a photographic video signal that is an output of the video signal processing unit 202 and performs a photographic video enlargement process in accordance with EZ information given from the camera control microcomputer 205. Reference numeral 208 denotes a RET video input terminal for inputting a main video signal from the main video processing device 3 as a return video signal. Reference numeral 209 denotes a VF display switching unit that switches and selects the video signal input from the EZ frame synthesis unit 206, the EZ processing unit 207, and the RET video input terminal 208 on the VF 210 according to an instruction from the camera control microcomputer 205. Reference numeral 210 denotes a RET information input terminal that receives EZ magnification information of the RET video input from the main line video processing device 3 and outputs the EZ magnification information to the camera control microcomputer 205.

  The main line video processing device 3 is composed of the following components. Reference numeral 301 denotes a video input terminal for receiving a captured video signal output from the camera device 2, and 302 is a main line EZ operation means for setting and controlling the EZ magnification of the main line video. Reference numeral 303 denotes a video processing microcomputer having a function of receiving the state of the main line EZ operation means 302 and instructing EZ processing for the main line video signal and transmitting information about the EZ execution state of the main line video to the camera device 2. Reference numeral 304 denotes a main line EZ frame synthesizing unit that receives a captured video signal input from the video input terminal 301 and combines frame images corresponding to main line EZ information given from the video processing microcomputer 303. Reference numeral 305 denotes a video display unit that displays a video signal that is an output of the main line EZ frame synthesis unit 304. Reference numeral 306 denotes a main line EZ processing unit which receives a captured video signal input from the video input terminal 301 and performs an enlarged process of the captured video in accordance with main line EZ information given from the video processing microcomputer 303. Reference numerals 307 and 308 are a main line video terminal and a RET video output terminal for outputting the main line video signals enlarged by the main line EZ processing unit to the relay device and the camera device 2, respectively.

  The operation of the photographing system having such a configuration will be described.

  FIG. 2 shows an operation flowchart of the lens control microcomputer 107, FIG. 3 shows a camera control microcomputer 205, and FIG.

  First, the operation of the lens control microcomputer 107 will be described using the flowchart of FIG. After the operation starts in process step S100, in process step S101, as the initial state setting process, the operation sensitivity when calculating the input of the focus operation means 101 as the movement amount of the focus lens 105 is adjusted by the angle of view of the lens system 1. The focus operation sensitivity coefficient suitable for the recording is stored as the focus operation sensitivity coefficient A (F_CTRL_A).

Information of each part of the lens device 1 is acquired in processing step S102. That is, the state of the EZ operation means 103 is stored as EZ_VF_CTRL, the state of the EZ video display switch 104 is stored as EZ_SW, and the state of the RET video display switch 102 is stored as RET_SW. Further, the state of the focus operation means 101 is stored as F_CTRL, and the state of the focus position detection unit 106 is stored as F_POS.
In the processing step S103, a focus operation sensitivity coefficient B capable of realizing an optimum focus operation sensitivity by EZ is calculated from the acquired EZ_VF_CTRL and stored as F_CHAR_B. EZ_VF_CTRL has information necessary for cutting out a part of the area in the screen shot by the lens apparatus 1 as EZ frame information.

  In order to explain EZ_VF_CTRL, FIG. 5 shows a screen image of the VF 204 of the camera apparatus 2. An area represented by a frame in the screen is an EZ frame, and the display position and shape are changed by operating the EZ operation means 103. However, since the shape is an instruction means for an enlarged image area by EZ, the aspect ratio is equal to the screen ratio. In this case, the information that EZ_VF_CTRL has is the coordinate A (x, y) of one corner of the EZ frame and the diagonal ratio B (0 <B <1) to the whole screen, but other information such as all the coordinates of the four corners, The aspect ratio, aspect ratio, etc. of the entire screen may be used.

  Also, the focus operation sensitivity is dull in EZ. That is, since the subject is displayed larger than the entire screen display during EZ, it is easy to check the focus state, and fine focus adjustment is possible compared to the entire screen. For this reason, the operation sensitivity with which fine adjustment can be performed for the operation with the focus operation means 101 is also required. An example of the conversion formula is shown in Formula (1).

F_CHAR_B = F_CHAR_A × B + C formula (1)
C: Sensitivity offset (Eigenvalue for each lens system)
After calculating the operation sensitivity as described above, information necessary for controlling the video display on the VF 204 of the lens apparatus 1 is output to the camera apparatus 2 in the processing step S104. That is, EZ_VF_CTRL, EZ_SW, and RET_SW are transmitted.

  In processing step S105, information on the EZ processing added to the main line video signal in the main line video processing device 3 is received as EZ_RET_CTRL via the camera device 2. In processing step 106, a focus operation sensitivity coefficient C that can realize an optimum focus operation sensitivity for the received EZ_RET_CTRL is calculated and stored as F_CHAR_C. Note that this calculation processing is performed in the same manner as in processing step S103.

  In processing step S107, the state of the RET video display switch 102, that is, RET_SW is determined. If “OFF”, the process proceeds to processing step S108. In processing step S108, the state of the EZ video display switch 104, that is, EZ_SW, is determined. If “OFF”, the process proceeds to processing step S109.

  In processing step S109, it is determined that the captured video signal is displayed by VF204, and the focus sensitivity coefficient is set to F_CHAR_A which is a normal coefficient.

  If RET_SW is “ON” in processing step S107, the process proceeds to processing step S110, and it is determined that the main video signal is displayed in VF204, and the focus sensitivity coefficient is set to F_CHAR_C. If EZ_SW is “ON” in processing step S108, the process proceeds to processing step S111. In VF204, it is determined that the EZ video signal is displayed, and the focus sensitivity coefficient is set to F_CHAR_B.

  After passing through any of the processing steps S109, S110, S111, the processing shifts to processing step S112. Here, the focus drive command signal corresponding to the set operation sensitivity and F_CTRL and F_POS is calculated. Then, the calculation result is output to the focus actuator 108, the focus lens 105 is guided to the position operated by the focus operation means 101, and the process returns to the processing step S102.

  Next, the operation of the camera control microcomputer 205 will be described using the flowchart of FIG. After the operation starts in processing step S200, lens information EZ_VF_CTRL, EZ_SW, and RET_SW transmitted from the lens apparatus 1 is received in processing step S201. Also, information EZ_RET_CTRL related to EZ processing added to the main line video signal from the main line video processing device 3 is received in processing step S202. This EZ_RET_CTRL is not used in the camera device 2 but is transmitted to the lens device 1 in processing step S203.

  Next, EZ_VF_CTRL is output to the EZ frame synthesis unit 206 and the EZ processing unit 207 in processing step S204. The EZ frame synthesis unit 206 synthesizes the EZ frame with the captured video signal input from the video signal processing unit 202 according to the received EZ_VF_CTRL, and outputs it to the VF display switching unit 209. Further, the EZ processing unit 207 performs image enlargement processing on the captured video signal, which is an input from the video signal processing unit 202, according to EZ_VF_CTRL, and outputs it to the VF display switching unit 209.

  Then, after processing step S205, a video signal switching control signal to be displayed on the VF 204 is output to the VF display switching unit 209. That is, if the RE_SW state is “OFF” in processing step S205 and the EZ_SW state is “OFF” in processing step S206, the processing step shifts to S207. In processing step S207, a switching signal is output to the VF display switching unit 209 so as to display the photographed video input from the EZ frame synthesis unit 206. If the RET_SW state is “ON” in processing step S205, the processing step moves to S208. In processing step S208, a switching signal is output to the VF display switching unit 209 so as to display a return video from the main line that is an input from the RET video input terminal 208.

  Further, if the RE_SW state is “OFF” in processing step S205 and the EZ_SW state is “ON” in processing step S206, the processing step moves to S209. In processing step S209, a switching signal is output to the VF display switching unit 209 so as to display the EZ video that is input from the EZ processing unit 207.

  After passing through the processing steps S207, S208, and S209, the processing is returned to the processing step S201, and the repeated operation is performed.

  Finally, the operation of the video processing microcomputer 303 will be described using the flowchart of FIG. After the operation starts in the processing step S300, the state of the main line EZ operating means is fetched in the processing step S301 and stored as EZ_VF_RET_CTRL. In step S302, EZ_VF_RET_CTRL is transmitted to the camera device 2. EZ_VF_RET_CTRL is information related to the state in which EZ is performed on the main line video. This is the same information as EZ_VF_CTRL which is the EZ information to be displayed on the VF 204 described above, that is, in this example, the coordinate A (x, y) of one corner of the EZ frame and the diagonal ratio B (0 <B < 1) Have.

  In processing step S303, EZ_VF_RET_CTRL is output to the main line EZ frame composition unit 304, the main line EZ processing unit 306, and the RET information input terminal of the camera device 2. The main line EZ frame combining unit 304 combines the EZ frame with the captured video signal input from the video terminal 301 in accordance with EZ_VF_RET_CTRL, and outputs it to the VF display unit 305. The main line EZ processing unit 306 performs image enlargement processing on the captured video signal input from the video terminal 301 in accordance with EZ_VF_RET_CTRL, and outputs it as a main line video signal to the main line video output terminal 307 and the RET video output terminal 308.

  After the process step S303 is completed, the process is returned to the process step S301, and the repetition operation is performed.

  As an example of relay broadcasting, an example of utilizing this embodiment at the time of horse racing relay will be described.

  FIG. 6 shows a VF screen image when the RET video switch 102 and the EZ video display switch 104 are both in the OFF state. In this state, the video from the EZ frame composition unit 206 is displayed on the VF. The photographer adjusts the focus while operating the focus by the focus operation means 101 while checking the VF. Thereafter, the EZ frame operation means 103 is operated to move the EZ frame to a screen area where the focus is to be truly adjusted, and the area size is adjusted. The figure shows an example in which the EZ frame is moved to the horseman and horse head in the center. After the operation of the EZ frame is completed, the EZ video display switch 104 is turned on to display the EZ video from the EZ processing unit 207 on the VF. As a result, the screen display of the VF 204 is enlarged and displayed as shown in FIG. 7, and the photographer can check the fine focus state. Then, the focus operation unit 101 is operated again, and the focus is driven. At this time, since the focus operation sensitivity is low, it is easy to finely move the focus, so that it is easy to finely adjust the focus. .

  On the other hand, the VE operating the main line image processing apparatus 3 disposed at a remote location from the lens apparatus 1 and the camera apparatus 2 sets the angle of view to be transmitted as the main line image while checking the image display unit 305. FIG. 8 is a screen image of the video display unit 305. While confirming this screen, the VE operates the main line EZ operation means 302 to determine the optimum main line EZ angle of view. The video having the determined angle of view is output to the main video output terminal 307 and the RET video output terminal 308 as a main video transmission video. Figure 9 shows the screen image of the main line video.

  The cameraman operating the camera device 2 periodically switches the RET video display switch, displays the return video on the VF, and always grasps the main line transmission video. Since the screen state in FIG. 9 is narrower than the angle of view set by the EZ operation means 103, the focus operation means 101 again performs fine adjustment of the focus when a slight focus shift is confirmed. Since the focus operation sensitivity at this time is further reduced, finer focus control is possible.

By adopting such a photographing system configuration, an imaging system device that reduces the focus operation sensitivity in conjunction with the screen enlargement on the image display device, and enables an accurate focus operation without a sense of incongruity while viewing the enlarged screen. It becomes possible to provide.

  Also, by handling EZ information on the VF and EZ information on the main line video separately, it is possible to set the focus operation feeling to be easy to handle even when the EZ magnification is different. Each focus operation sensitivity can be set independently, and the operation sensitivity can be automatically changed according to the state of each EZ.

Further, in the present embodiment, the system configuration in which the photographing system is divided as the lens device 1, the camera device 2, and the main line video processing device 3 has been described. However, no matter how it is divided, it can be combined into one device. For example, although the focus operation means 101 is disposed in the lens apparatus 1, it may be disposed in the camera apparatus 2 and the main line video processing apparatus 3, or a plurality of operation means may be disposed. Further, the display form of the VF 204 is switched and displayed by the VF display switching unit 209, but may be displayed in a superimposed manner like a picture-in-picture.
[Example 2]
FIG. 10 is a process flowchart of the camera control microcomputer 205 in the camera apparatus 1 that reveals the features of the second embodiment of the present invention. The same steps as those in FIG. 3 of the first embodiment are given the same step numbers, and the description thereof is omitted.

  The feature of the present invention resides in that, in addition to the EZ frame in VF204 shown in FIG. 11, the main line EZ processing area applied by the main line video processing device 3 is displayed as the main line EZ frame. At this time, the EZ frame can be moved and the frame size can be changed only within the main EZ frame area.

The operation of the camera control microcomputer 205 of this embodiment will be described with reference to the flowchart of FIG.
After the operation starts in processing step S200, lens information EZ_VF_CTRL, EZ_SW, and RET_SW transmitted from the lens apparatus 1 is received in processing step S201. Information EZ_RET_CTRL related to EZ processing added to the main line video signal from the main line video processing device 3 is received in processing step S202, and is first transmitted to the lens device 1 in processing step S203. If the EZ_VF_CTRL is within the range of EZ_RET_CTRL at the processing step S210, the processing is changed to the processing step S204. After that, the process proceeds to step S204. For example, the EZ frame may be changed in the same condition as the main EZ frame, or may be arranged in the vicinity of the EZ frame before the change in the main EZ frame. Since it is important to fit the position and size of the EZ frame in the main line EZ frame, there are various ways to change it.

  Next, EZ_VF_CTRL is output to the EZ frame synthesis unit 206 and the EZ processing unit 207 in processing step S204. In processing step S212, EZ_RET_CTRL is output to the EZ frame synthesis unit 206 and the EZ processing unit 207. The EZ frame synthesis unit 206 synthesizes the EZ frame and the main line EZ in accordance with the received EZ_VF_CTRL with the captured video signal that is input from the video signal processing unit 202, and outputs it to the VF display switching unit 209. Further, the EZ processing unit 207 performs image enlargement processing on the captured video signal, which is an input from the video signal processing unit 202, according to EZ_VF_CTRL, and outputs it to the VF display switching unit 209.

  Then, after processing step S205, a video signal switching control signal to be displayed on the VF 204 is output to the VF display switching unit 209. That is, if the RE_SW state is “OFF” in processing step S205 and the EZ_SW state is “OFF” in processing step S206, the processing step shifts to S207. In processing step S207, a switching signal is output to the VF display switching unit 209 so as to display the photographed video input from the EZ frame synthesis unit 206. If the RE_SW state is “ON” in processing step S205, the processing step moves to S208. In processing step S208, a switching signal is output to the VF display switching unit 209 so as to display the EZ video that is input from the EZ processing unit 207. Further, if the RE_SW state is “OFF” in processing step S205 and the EZ_SW state is “ON” in processing step S206, the processing step moves to S209. In processing step S209, a switching signal is output to the VF display switching unit 209 so as to display a photographed video that is input from the RET video input terminal 208.

  After passing through the processing steps S207, S208, and S209, the processing is returned to the processing step S201, and the repeated operation is performed.

  By adopting the above configuration, it is possible to further enlarge a region where the cameraman wants to focus in the video signal transmitted on the main line and to perform focus adjustment with high accuracy. In this embodiment, the process of displaying the main line EZ frame on the VF 204 with only the camera control microcomputer 205 has been described. However, the EZ_VF_CTRL changed in the processing step S211 in FIG. 11 is transmitted to the lens control microcomputer 107 of the lens apparatus 1, and the focus operation is performed. The sensitivity may be changed.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to these embodiments, and various modifications and changes can be made within the scope of the gist.

DESCRIPTION OF SYMBOLS 1 Lens apparatus 2 Camera apparatus 1 Main line image processing apparatus 101 Focus operation means 102 RET image display switch 103 EZ operation means 104 EZ image display switch 105 Focus lens 107 Lens control microcomputer 204 VF
205 Camera Control Microcomputer 206 EZ Frame Synthesis Unit 207 EZ Processing Unit 303 Video Processing Microcomputer 304 Main Line EZ Frame Synthesis Unit 305 Video Display Unit 306 Main Line EZ Processing Unit 308 RET Video Output Terminal

Claims (5)

Optical means for photographing the subject;
Photoelectric conversion means for converting the imaging light flux of the lens device into a video signal;
First display means for displaying a video related to the video signal;
First electronic zoom means for applying an electronic zoom process to the video signal;
First synthesizing means for synthesizing information on the state of the first electronic zoom with the video signal;
A first display means for displaying a first electronic zoom image as a result of the first electronic zoom means and a first composite image as a result of the first combining means;
Second electronic zoom means for applying an electronic zoom process to the video signal;
Second synthesizing means for synthesizing information on the state of the second electronic zoom with the video signal;
Second display means for displaying a second composite image that is a result of the second composition means;
Video output means for outputting a second electronic zoom video as a result of the second electronic zoom means to the outside,
An imaging system comprising: an optical state changing unit that changes control of the optical unit according to the information about the state of the first electronic zoom and the information about the state of the second electronic zoom. The information related to the state of the first electronic zoom includes at least information related to the magnification of the electronic zoom,
Information regarding the state of the second electronic zoom includes at least information regarding an enlargement ratio of the electronic zoom.
The imaging system according to claim 1. The information about the state of the first electronic zoom is first frame information that cuts out a partial area of the captured video signal,
The information regarding the state of the second electronic zoom is second frame information for cutting out a partial area of the captured video signal.
The imaging system according to claim 1 or claim 2, wherein 4. The display device according to claim 1, wherein the first display unit displays the electronic zoom video and the first composite video in a picture-in-picture manner. Shooting system. A focus operation means for adjusting the focus of the optical system while confirming an image of the first display means;
First electronic zoom operation means for operating the setting of the first electronic zoom means;
Second electronic zoom operation means for operating the setting of the second electronic zoom means;
First video selection operation means for selecting and operating any one of the first electronic zoom video, the second electronic zoom video, and the first composite video;
Have
The first display means displays a first selected video signal that is a result of the first video selection operation means,
5. The photographing system according to claim 1, wherein the optical state changing unit changes the state based on a result of the first video selection operation unit.