JP2018085666A - Imaging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce stress given to users' eyes in consideration of a display time lag of an EVF device.SOLUTION: An imaging device includes first display means that displays a subject video on an electronic view finder device, second display means that displays the subject video on a rear liquid crystal screen, eyepiece detection means that detects an eyepiece to the electronic view finder device, luminance switching means that switches the display luminance of the first display means, diaphragm means that varies a diaphragm value of a lens depending on a photometric value and stops down the lens, luminance gain determination means that determines a rate at which the display luminance of the first display means is increased depending on the diaphragm value, and luminance setting means capable of arbitrarily setting the display luminance of the first display means. After having detected the eyepiece, the display luminance of the first display means is gradually increased from the minimum luminance to the luminance set by the luminance setting means depending on the luminance gain.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an imaging apparatus.

  In recent years, digital cameras of a mirrorless type or a compact type have been equipped with an electronic viewfinder (hereinafter referred to as an EVF device) in addition to a rear liquid crystal mounted on the back of the camera as a display member for confirming a subject. The rear liquid crystal has a large display member and is effective in confirming the composition, but is difficult to see in a bright environment. The EVF device is very effective in visually recognizing a subject in a bright environment.

  For this reason, the user performs the shooting operation using the rear liquid crystal according to the scene of the subject or the shooting operation using the EVF device, and uses the display member properly. In addition, the human eye has a function of adjusting the amount of light by opening and closing the pupil in a bright environment and a dark environment, and a stress applied to the eye due to a sudden change in brightness contributes to eye strain.

  In addition, there is an eyepiece detection sensor mounted on the EVF device, and there is a digital camera that operates to turn off the display of the rear liquid crystal and switch to the display of the EVF device when a person touches the EVF device.

  In such a situation, for example, as proposed in Japanese Patent Application Laid-Open No. 2004-140736, there is a method of adjusting EVF luminance in accordance with ambient light so as to reduce stress applied to human eyes.

Japanese Patent Laid-Open No. 2004-140736

  There is a time lag between the time when a person contacts the EVF device and the live view video is output to the display unit in the EVF device, and a dark object is seen for a while after the eye contact. For this reason, when a person looks into the EVF device from a bright environment, the human eye will see bright → dark → bright, and the pupil will be closed → open → closed in a short time. .

  Therefore, the present invention is to reduce the stress applied to the user in consideration of the display time lag of the EVF device.

  The imaging apparatus includes a first display unit that displays a subject image on the electronic viewfinder device, a second display unit that displays the subject image on a rear liquid crystal screen, and an eyepiece detection unit that detects an eyepiece to the electronic viewfinder device. , A luminance switching means for switching the display brightness of the first display means, a diaphragm means for changing the lens aperture value according to the photometric value, and a lens aperture, and increasing the display brightness of the first display means according to the aperture value. A luminance gain determining unit for determining a ratio; and a luminance setting unit capable of arbitrarily setting a display luminance of the first display unit, and after detecting an eyepiece, the display luminance of the first display unit is changed from the minimum luminance to the minimum luminance. The luminance is gradually increased according to the luminance gain up to the luminance set by the luminance setting means.

  ADVANTAGE OF THE INVENTION According to this invention, the stress by the change of the brightness given to a user's eyes at the time of imaging | photography operation | movement with an EVF apparatus can be reduced.

It is an external view of an imaging device. It is a block diagram of an imaging device. It is a flowchart which shows the procedure of 1st Embodiment. It is a flowchart which shows the procedure of 2nd Embodiment. It is explanatory drawing which concerns on 1st Embodiment. It is explanatory drawing which concerns on 1st, 2nd embodiment. It is explanatory drawing which concerns on 2nd Embodiment.

  Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an external view of a digital camera as an example of an imaging apparatus of the present invention. The display unit 28 is a display unit that displays images and various types of information. The shutter button 61 is an operation unit for issuing a shooting instruction. The mode dial 60 is an operation unit for switching various modes. The connector 112 is a connector between the connection cable 111 and the digital camera 100.

  The operation unit 70 is an operation unit including operation members such as various switches, buttons, and a touch panel for receiving various operations from the user. The controller wheel 73 is a rotatable operation member included in the operation unit 70. Reference numeral 72 denotes a power switch that switches between power on and power off. The recording medium 200 is a recording medium such as a memory card or a hard disk.

  The recording medium slot 201 is a slot for storing the recording medium 200. The recording medium 200 stored in the recording medium slot 201 can communicate with the digital camera 100. A lid 203 is a lid of the recording medium slot 201. Reference numeral 113 denotes a strobe device. Reference numeral 400 denotes a lens device. Reference numeral 29 denotes an EVF apparatus, which is an EVF display unit that displays images and various types of information.

  FIG. 2 is a block diagram illustrating a configuration example of the digital camera 100 according to the present embodiment. In FIG. 2, a shutter 101 performs exposure control on the image sensor. The imaging unit 22 is an imaging device configured with a CCD, a CMOS device, or the like that converts an optical image into an electrical signal. The A / D converter 23 converts an analog signal into a digital signal. The A / D converter 23 is used to convert an analog signal output from the imaging unit 22 into a digital signal.

  The image processing unit 24 performs resizing 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 the captured image data, 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. The image processing unit 24 further performs predetermined calculation processing using the captured image data, and also performs TTL AWB (auto white balance) processing based on the obtained calculation result.

  Output data from the A / D converter 23 is directly written into the memory 32 via the image processing unit 24 and the memory control unit 15 or via the memory control unit 15. The memory 32 stores image data obtained by the imaging unit 22 and converted into digital data by the A / D converter 23 and image data to be displayed on the display unit 28. The memory 32 has a storage capacity sufficient to store a predetermined number of still images, a moving image and sound for a predetermined time.

  The memory 32 also serves as an image display memory (video memory). 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. Thus, the display image data written in the memory 32 is displayed on the display unit 28 via the D / A converter 13. The display unit 28 performs display according to the analog signal from the D / A converter 13 on a display such as an LCD. A digital signal once A / D converted by the A / D converter 23 and stored in the memory 32 is converted into an analog signal by the D / A converter 13 and sequentially transferred to the display unit 28 for display as an electronic viewfinder. It functions and can display through images.

  The nonvolatile memory 56 is an electrically erasable / recordable memory, and for example, an EEPROM or the like is used. The nonvolatile memory 56 stores constants, programs, and the like for operating the system control unit 50. Here, the program is a program for executing various flowcharts described later in the present embodiment.

  The system control unit 50 controls the entire digital camera 100. By executing the program recorded in the non-volatile memory 56 described above, each process of the present embodiment to be described later is realized. A system memory 52 is a RAM. In the system memory 52, constants and variables for operation of the system control unit 50, programs read from the nonvolatile memory 56, and the like are expanded. The system control unit also performs display control by controlling the memory 32, the D / A converter 13, the display unit 28, and the like. The system timer 53 is a time measuring unit that measures the time used for various controls and the time of a built-in clock.

  The mode switch 60, the first shutter switch 62, the second shutter switch 64, and the operation unit 70 are operation means for inputting various operation instructions to the system control unit 50. The mode switch 60 switches the operation mode of the system control unit 50 to any one of a still image recording mode, a moving image recording mode, a reproduction mode, and the like. Modes included in the still image recording mode include an auto shooting mode, an auto scene discrimination mode, a manual mode, various scene modes for shooting settings for each shooting scene, a program AE mode, a custom mode, and the like.

  The mode changeover switch 60 can directly switch to any of these modes included in the still image shooting mode. Alternatively, after switching to the still image shooting mode once with the mode switch 60, the mode may be switched to one of these modes included in the still image shooting mode using another operation member.

  Similarly, the moving image shooting mode may include a plurality of modes. The first shutter switch 62 is turned on when the shutter button 61 provided in the digital camera 100 is being operated, so-called half-press (shooting preparation instruction), and generates a first shutter switch signal SW1. In response to the first shutter switch signal SW1, operations such as AF (autofocus) processing, AE (automatic exposure) processing, AWB (auto white balance) processing, and EF (flash pre-emission) processing are started.

  The second shutter switch 62 is turned on when the operation of the shutter button 61 is completed, so-called full press (shooting instruction), and a second shutter switch signal SW2 is generated. In response to the second shutter switch signal SW2, the system control unit 50 starts a series of shooting processing operations from reading a signal from the imaging unit 22 to writing image data on the recording medium 200.

  Each operation member of the operation unit 70 is appropriately assigned a function for each scene by selecting and operating various function icons displayed on the display unit 28, and functions as various function buttons. Examples of the function buttons include an end button, a return button, an image advance button, a jump button, a narrowing button, and an attribute change button. For example, when a menu button is pressed, various setting menu screens are displayed on the display unit 28. The user can make various settings intuitively using the menu screen displayed on the display unit 28, and the four-way button and the SET button.

  The controller wheel 73 is a rotatable operation member included in the operation unit 70, and is used when a selection item is instructed together with a direction button. When the controller wheel 73 is rotated, an electrical pulse signal is generated according to the operation amount, and the system control unit 50 controls each unit of the digital camera 100 based on the pulse signal. From this pulse signal, it is possible to determine the angle at which the controller wheel 73 is rotated, how many rotations, and the like. The controller wheel 73 may be any operation member that can detect a rotation operation.

  For example, it may be a dial operation member that generates a pulse signal by rotating the controller wheel 73 itself according to the rotation operation of the user. Further, an operation member made of a touch sensor may detect the rotation operation of the user's finger on the controller wheel 73 without rotating the controller wheel 73 itself (so-called touch wheel).

  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, and detects whether or not a battery is installed, the type of battery, and the remaining battery level. Further, the power control unit 80 controls the DC-DC converter based on the detection result and an instruction from the system control unit 50, and supplies a necessary voltage to each unit including the recording medium 200 for a necessary period.

  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 recording medium I / F 18 is an interface with the recording medium 200 such as a memory card or a hard disk. The recording medium 200 is a recording medium such as a memory card for recording a captured image, and includes a semiconductor memory, a magnetic disk, or the like.

  The strobe device 300 is a strobe that is detachably attached to the digital camera 100. The strobe control unit 301 is a CPU, for example, and controls the operation of each block of the strobe 300 according to an instruction input from the camera control unit 50 via the I / F 33. Specifically, the strobe system control unit 301 controls the light emission amount, the light emission time, the light emission angle, and the like. The light emitting unit 304 emits the strobe with the voltage instructed by the strobe system control unit 301.

  The lens device 400 is a detachable lens unit, and is a lens group including a zoom lens, a focus lens, an anti-vibration lens, and a diaphragm blade. The lens control unit 401 is a CPU, for example, and controls each block of the lens according to an instruction input from the camera control unit 50 via the I / F 34. Specifically, the lens control unit 401 performs zoom lens control, focus lens control, anti-vibration lens control, and diaphragm blade control.

  The various sensor components of the sensor unit 90 are devices that detect physical quantities inside and outside the imaging device and convert them into signals. For example, there are a temperature sensor, a posture sensor, an acceleration sensor, an eye sensor, and the like. For example, when the temperature sensor receives a request from the system control unit 50, the temperature sensor transmits current temperature data to the system control 50. Furthermore, for example, the eyepiece sensor periodically performs eyepiece detection processing, and transmits a detection signal to the system control 50 when an eyepiece is detected.

The operation of each embodiment of the present invention will be described below with reference to FIGS.
<First Embodiment>
In the first embodiment, an example in which the EVF luminance is gradually increased to a predetermined luminance in the eyepiece operation on the EVF device will be described.

  FIG. 3 is a flowchart of processing for obtaining predetermined EVF luminance in the first embodiment. Each process in the flowchart is realized by the system control unit 50 expanding and executing a program stored in the nonvolatile memory 56 in the system memory 52.

  In step S <b> 101, the system control unit 50 performs signal detection of the eye sensor 90 so-called eye detection. If it is detected that the user has touched the EVF device 29, the process proceeds to step S102. In step S102, the system control unit 50 turns on the power of the EVF device 29 and performs initialization processing such as communication processing. The process proceeds to step S103.

  Here, the time lag at the time of eyepiece to EVF device is described. The EVF apparatus according to the present invention has a time lag from the user's eye movement to the EVF's live view output. Specifically, the eyepiece signal chattering process, the EVF device initialization process, the time until the establishment of the initial communication, and the EVF output live view generation process. The time lag due to these processes is about 300 ms, and the live view video is not displayed in the EVF during this time lag period since it is dark.

  In step S <b> 103, the system control unit 50 communicates with the lens system control unit 401 to obtain the lens aperture amount F value. The process proceeds to step S104.

  Here, the aperture value F value of the lens will be described. The digital camera 100 that performs photometry using the image sensor 22 adjusts the amount of light by opening and closing the diaphragm blades of the lens 402 according to the brightness of external light during live view display in a shooting standby state. That is, when the outside light is bright, control is performed such that the diaphragm blades of the lens are closed (the aperture amount F value at this time is large). Conversely, when the outside light is dark, control is performed so that the diaphragm blades of the lens are opened (the aperture amount F value at this time is small).

  In step S104, the system control unit 50 determines the EVF brightness gain coefficient K of the EVF device 29 according to the F value acquired in step S103. The initial value of EVF luminance B is 0. The process proceeds to step S105.

  Here, the gain coefficient K of EVF luminance will be described. The EVF apparatus according to the present invention increases the luminance according to a predetermined luminance gain K after detecting the eyepiece of the user, and controls the EVF luminance Br set by the user through a menu or the like. The gain K is determined according to the aperture amount F of the lens. When the outside light is bright, the gain K is smaller than that in a dark place.

  Here we describe the characteristics of the human pupil. The human pupil adjusts the amount of external light using the pupil. It moves to close the pupil in bright places and moves to open the pupil in dark places. For example, when a person performs an eye contact with the EVF device 29 in a bright place, the user sees a bright → dark object, and then when the EVF device backlight is turned on and a live view display is output, the dark → bright object is displayed. Will see. In this case, a human will see bright → dark → bright continuously for a short period of time, and the pupil will open and close violently. This increases stress on the pupil and contributes to fatigue from EVF photography.

  In step S105, the system control circuit 50 transmits a request to turn on the live view output display of the EVF device 29. The EVF device 29 turns on the backlight with the luminance B. The process proceeds to step S106.

  In step S106, the system control unit 50 requests the LCD display unit 28 to turn off the LCD backlight. Further, the system control unit 50 transmits a live view signal to the memory control unit 15 to the EVF display unit 29 and further stops transmission to the LCD display unit 28. The live view signal is turned off, and the process proceeds to step S107.

  In step S107, as in step S101, the system control unit 50 performs signal detection of the eye sensor 90, so-called eye detection. If it is detected that the user has touched the EVF device 29, the process proceeds to step S108. When it is detected that the user has lifted his / her eyes from the EVF device 29, the process proceeds to step S111.

  In step S108, the system control unit 50 measures the time Δt during which the system operates at the same EVF brightness and compares it with a predetermined time for switching the EVF brightness. If Δt has passed the predetermined time, the process proceeds to step S109. In step S109, the system control unit 50 calculates EVF luminance B from the luminance gain K and the elapsed time Δt (for example, B + (K × Δt)). The system control unit 50 requests that the brightness of the EVF device 29 be the EVF brightness B. The EVF device 29 performs processing so that the EVF backlight operates at the EVF luminance B. The process proceeds to step S110.

  In step S110, the system control unit 50 compares the user setting luminance Br with the EVF luminance B. If the EVF luminance B is larger, the EVF device 29 maintains the EVF luminance and ends the EVF luminance switching process. If the EVF brightness B is smaller, the process proceeds to step 107. In step S111, the system control unit 50 requests to stop the live view output display of the EVF device 29. The EVF device 29 turns off the EVF backlight. The process proceeds to step S112.

  In step S112, the system control unit 50 requests the LCD display unit 28 to turn on the LCD backlight. Further, the system control unit 50 stops transmitting the live view signal to the EVF display unit 29 to the memory control unit 15 and further transmits the live view signal to the LCD display unit 28. The process ends.

  Here, the relationship between the time t from when the user contacts the EVF device and the EVF luminance B in the first embodiment of the present invention will be described. FIG. 5 is a diagram showing the relationship between time t and EVF brightness B, where the horizontal axis shows time t and the vertical axis shows EVF brightness B. Further, “eyepiece state” indicates the timing of the eyepiece operation as Hi, and “EVF display state” indicates the timing at which the EVF display is output as Hi.

  As shown in the figure, there is a display time lag in the period from the timing T0 when the user eyed to the timing T1 when the EVF display is output, and the EVF brightness B is gradually increased from the timing T1. The EVF brightness is increased in accordance with the brightness gain. For example, an operation example with gains Ka, Kb, and Kc is shown. The luminance gain is determined by the aperture value of the lens, and this determination method will be described later.

  FIG. 6 is a diagram illustrating the relationship between the lens aperture value F and the luminance gain K. The horizontal axis represents the lens aperture value F, and the vertical axis represents the luminance gain K. By the way, in an imaging apparatus that performs live view display during shooting standby, the imaging unit 22 periodically performs photometry processing, and adjusts external light while adjusting the aperture of the lens. When the outside light is bright, the lens diaphragm is closed, and when the outside light is dark, the lens diaphragm is opened. In other words, the aperture value F value is processed as a large value when bright and as a small value when dark.

  As shown in the figure, the luminance gain K is determined in proportion to the aperture value. In a bright environment, the luminance gain K is determined to be smaller than that in a dark environment (for example, when bright: Kc <dark: Ka).

  Thus, the relationship between the eyepiece time t to the EVF device and the EVF luminance B is proportional to the elapsed time t with the luminance gain Kc as a coefficient when the user looks into the EVF in a bright environment. Then, process it so that it is gradually raised. When the user looks into the EVF in a dark environment, the EVF brightness B is processed so as to increase slightly in proportion to the elapsed time t with the brightness gain Ka as a coefficient.

  As described above, according to the first embodiment, it is possible to reduce the stress applied to the eyes accompanying the change in brightness when looking into the EVF device.

  Further, since the luminance gain is switched according to the aperture value of the lens, it can be easily determined as compared with the case of calculating from the photometric value, the calculation processing time by the CPU can be shortened, and the responsiveness can be improved. In addition, since the user looks into the EVF from a bright environment and then darkens and then slowly changes to a brighter state, compared to brighter, darker, brighter and brighter than bright Reduces stress on the eyes.

  In addition, users look at the EVF from a dark environment and gradually change to a brighter state, so the stress on the eyes can be reduced compared to when the brightness is increased at once for a change from dark to dark to bright. Furthermore, the time required to reach the set EVF brightness Br can be shortened by taking advantage of the fact that the stress applied to the eyes in the change from bright to dark is less than when the eyepiece is in the bright environment.

<Second Embodiment>
In the second embodiment, an example in which the EVF luminance is gradually increased to a predetermined luminance in the eyepiece operation on the EVF device in accordance with the presence / absence of the photographing operation will be described.

  FIG. 4 is a flowchart of a process for obtaining a predetermined EVF luminance in accordance with the presence / absence of a shooting operation in the second embodiment. Each process in the flowchart is realized by the system control unit 50 expanding and executing a program stored in the nonvolatile memory 56 in the system memory 52.

  Note that steps S201 to S212 in FIG. 4 are the same processes as steps S101 to S112 in FIG.

  In step S213, the presence / absence of a photographing operation is detected. The system control unit 50 detects the operation state of the operation unit 70 and the shutter buttons 61 and 62. For example, signal detection of the shutter button 61, so-called half-press detection of the release button is performed. Alternatively, the signal detection of the narrow-down button is performed. If such an operation related to photographing is detected, the process proceeds to step S214. If no operation related to photographing is detected, the process proceeds to step S202.

  In step S214, an EVF luminance gain at the time of shooting operation is determined. The system control unit 50 sets the value of the EVF luminance gain K to a predetermined luminance gain Ks for shooting operation. The process proceeds to step S215. In step S215, the EVF brightness at the time of shooting operation is determined. The system control unit 50 sets the EVF luminance B to a predetermined luminance Bs for shooting operation. The process proceeds to step S205.

  In step S216, processing similar to that in step S213 is performed. Detect the presence or absence of shooting operations. The system control unit 50 detects the operation state of the operation unit 70 and the shutter buttons 61 and 62. If an operation related to shooting is detected, the process proceeds to step S214. If no operation related to shooting is detected, the process proceeds to step S207.

  Here, the relationship between the time t from when the user contacts the EVF apparatus in the shooting operation state and the EVF luminance B in the second embodiment of the present invention will be described. FIG. 7 is a diagram showing the relationship between time t and EVF brightness B, where the horizontal axis shows time t and the vertical axis shows EVF brightness B. Furthermore, “eyepiece state” indicates the timing of the eyepiece movement as Hi, “EVF display state” indicates the timing at which the EVF display is output as Hi, and “narrow button” indicates the state where the narrow button is pressed as Hi. ing.

  As shown in the figure, there is a display time lag in the period from the timing T0 when the user eyed to the timing T1 when the EVF display is output, and the EVF luminance Bs for shooting operation using the luminance gain Ks for shooting operation as a coefficient from the timing of T1. Increase the brightness up to. T2 is the timing when the narrow-down button is released. From the timing of T2, the EVF luminance is increased according to the luminance gain K. For example, an operation example with gains Ka, Kb, and Kc is shown.

  As described above, the relationship between the eyepiece time t and the EVF brightness B when the user contacts the EVF device in the shooting operation state is quickly turned on to the EVF brightness Bs for shooting operation during the shooting operation, and the shooting operation is completed. The EVF brightness is increased according to the EVF brightness gain K determined according to the lens aperture value.

  As described above, according to the second embodiment, the shooting operation can be further improved by quickly increasing the EVF luminance while reducing the stress on the eyes due to the change in brightness. In addition, since the EVF brightness is maintained in conjunction with the shooting operation, the EVF brightness is not changed during the shooting operation, and the user operability can be maintained.

  As described above, according to the present invention, it is possible to reduce stress on the eyes due to a change in brightness when the user looks into the EVF device. In addition, even when the user looks into the EVF device while performing a shooting operation, the shooting operability can be maintained while reducing stress on the eyes. In addition, by changing the luminance change amount by the external light before the EVF eyepiece, the time until the EVF set luminance can be shortened while reducing the stress applied to the eyes.

  Note that the processing of the above-described embodiment may provide a system or apparatus with a storage medium that records software program codes that embody each function. The functions of the above-described embodiments can be realized by the computer (or CPU or MPU) of the system or apparatus reading out and executing the program code stored in the storage medium.

  In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the storage medium storing the program code constitutes the present invention. As a storage medium for supplying such a program code, for example, a floppy (registered trademark) disk, a hard disk, an optical disk, a magneto-optical disk, or the like can be used. Alternatively, a CD-ROM, CD-R, magnetic tape, nonvolatile memory card, ROM, or the like can be used.

  The functions of the above-described embodiments are not only realized by executing the program code read by the computer. Including the case where the OS (operating system) running on the computer performs part or all of the actual processing based on the instruction of the program code, and the functions of the above-described embodiments are realized by the processing. It is.

  Further, the program code read from the storage medium may be written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. After that, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instruction of the program code, and the functions of the above-described embodiments are realized by the processing. Is also included.

28 Display 61 Shutter button 60 Mode dial 112 Connector 111 Connection cable 100 Digital camera

Claims (7)

First display means for displaying a subject image on an electronic viewfinder device;
Second display means for displaying the subject image on the rear liquid crystal screen;
Eyepiece detection means for detecting an eyepiece to the electronic viewfinder device;
Brightness switching means for switching the display brightness of the first display means;
Aperture means for changing the aperture value of the lens according to the photometric value,
Luminance gain determining means for determining a ratio of increasing the display luminance of the first display means according to the aperture value;
Brightness setting means capable of arbitrarily setting the display brightness of the first display means,
An imaging apparatus characterized by gradually increasing the display luminance of the first display unit from a minimum luminance to a luminance set by the luminance setting unit in accordance with the luminance gain after detecting an eyepiece. Output destination switching means for switching the output destination of the subject video to the first or second display means;
The imaging apparatus according to claim 1, wherein after the eyepiece is detected, the second display unit is switched to the first display unit.   The electronic viewfinder device has a predetermined time lag as a period from detection of an eyepiece to output of a subject video to the first display means, and the electronic viewfinder is in a dark state during this period. The imaging device according to claim 1.   2. The imaging according to claim 1, wherein the luminance gain value determined by the luminance gain determining unit is determined according to a lens aperture value, and is smaller in a bright environment than in a dark environment. apparatus. Shooting operation means for performing operations related to shooting;
Photographing operation detecting means for detecting the photographing operation means;
Photographing luminance gain means for determining a luminance gain at the time of an eyepiece operation accompanied by a photographing operation;
Photographing luminance means for setting the luminance at the time of the eyepiece operation accompanied by the photographing operation,
The display luminance is increased to a luminance determined by the photographing luminance means according to a gain value determined by the photographing luminance gain means when a photographing operation is detected when an eyepiece is detected. The imaging apparatus according to 1.   6. The imaging apparatus according to claim 5, wherein the luminance gain value determined by the photographing luminance gain unit is larger than the value determined by the luminance gain determination unit.   6. The imaging apparatus according to claim 5, wherein the photographing operation unit is related to photographing operations of a release switch half-press or full-press operation, a lens narrowing operation, a zoom operation, and a focus operation.