JP2021105687A - Photographing device, photographing method, and photographing program - Google Patents

Abstract

To provide a photographing device, a photographing method, and a photographing program that can perform suitable display of a focus point in which a shift of the focus point due to insertion and withdrawal of a semi-transparent mirror is corrected.SOLUTION: A photographing device has: a semi-transparent mirror that is rotatable between a mirror down position at which it is inserted onto a photographic optical path to cause a finder optical system to reflect subject light and cause an image pick-up device to transmit the light, and a mirror up position at which it is retracted from the photographic optical path to cause the image pick-up device to pass the subject light; a superimposition display unit that displays a focus point formed by focus detection pixels of the image pick-up device superimposed on at least one of an optical image formed by the finder optical system and an electronic image formed by the image pick-up device; and a shift control unit that shifts the position to display the focus point in a superimposed manner in accordance with which of the mirror down position and the mirror up position the semi-transparent mirror is located.SELECTED DRAWING: Figure 4

Description

The present invention relates to a photographing device, a photographing method, and a photographing program.

For example, in a single-lens reflex camera (imaging device) equipped with a half mirror (quick return mirror), a part of the light is bent to the upper part of the camera while the half mirror is inserted in the optical path of the photographing light beam, and the finder optical is used. It has been proposed that while the captured image can be confirmed through the system, the light of the other portion passes through the half mirror and the focus is detected in the image pickup device. When focus detection is performed by the light transmitted through the half mirror, if the half mirror is in a mirror lockup state in which the half mirror is retracted from the optical path of the shooting light beam during shooting, the optical path changes between shooting and focus detection, and the image plane of the image pickup element Since the imaging position shifts and the focusing point shifts, it is necessary to make corrections.

Patent Document 1 describes between an image obtained when the half mirror advances on the optical path between the photographing optical system and the image sensor and an image obtained when the half mirror is retracted from the optical path. An image pickup device for reducing the discrepancy between the two is disclosed. The imaging device includes an imaging element that captures a subject image imaged by the photographing optical system, a half mirror, and a first state and a half mirror in which the half mirror advances on an optical path between the photographing optical system and the imaging element. A switching means for switching between the second state in which the light is retracted from the optical path, and a position change for changing the position of the imaging element at the time of imaging in a direction orthogonal to the optical axis of the photographing optical system between the first state and the second state. It has the means.

Patent Document 2 discloses an imaging device for the purpose of always using the same image information as a captured image regardless of whether or not the main mirror is on the optical path of the photographing optical system. The imaging device includes an imaging element that captures a subject image imaged by the photographing optical system, a half mirror that is detachably provided in the optical path between the photographing optical system and the imaging element, and a half mirror that captures optical light. It is provided with a switching means for switching between a first state on the optical path between the system and the imaging element and a second state in which the half mirror retracts from the optical path between the photographing optical system and the imaging element. The image pickup apparatus has a first read-out range in which the image sensor is read out in the first state and an image pickup in the second state according to the first state and the second state of the half mirror. It is provided with a read range switching means for switching from a second read range for reading among the elements.

Japanese Unexamined Patent Publication No. 2013-167855 Japanese Unexamined Patent Publication No. 2018-026604

However, Patent Document 1 requires a moving mechanism and a control mechanism for mechanically moving the position of the image pickup device at the time of imaging according to the first state and the second state, so that the structure is complicated. , There is a problem that the number of parts increases and the cost increases.

Further, Patent Document 2 has a problem that an image sensor having a special structure for enabling switching between a first reading range and a second reading range is inevitable. For example, in Patent Document 2, an image sensor having focus detection pixels on the entire surface of the image pickup surface, or a group of focus detection pixels partially arranged is arranged at a distance corresponding to an amount of optical path shift due to insertion / removal of a half mirror. The image sensor is required.

The present invention has been completed based on the above awareness of the problem, and is capable of performing a suitable AF point display that corrects the deviation of the AF point due to the insertion and removal of the half mirror. The purpose is to provide a program.

The photographing apparatus of the present embodiment has a mirror down position that is inserted into the photographing optical path to reflect the subject light to the finder optical system and transmit the subject light to the imaging element, and the subject light is retracted from the photographing optical path and transmitted to the imaging element. Distance measurement by the focus detection pixel of the image pickup element with respect to at least one of the half mirror that can rotate between the mirror up position to be passed, the optical image by the finder optical system, and the electron image by the image pickup element. A superimposition display unit that superimposes and displays points, and a shift control unit that shifts the position where the AF points are superposed and displayed according to whether the half mirror is located at the mirror down position or the mirror up position. It is characterized by having.

According to the present invention, it is possible to provide an imaging device, an imaging method, and an imaging program capable of performing a suitable AF point display in which the deviation of the AF point due to the insertion / removal of the half mirror is corrected.

It is a block diagram which shows the whole structure of the digital camera by this embodiment. It is a schematic plan view which shows typically the detailed structure of a part of the image pickup sensor including a focus detection pixel. It is a figure which shows an example of the arrangement of the distance measurement block by the focus detection pixel in the image pickup area of an image pickup sensor. It is a schematic plan view which shows typically the shift of the AF point display position in an optical finder. It is the first figure which shows the AF point display position at the time of a mirror lock-up photograph, and at the time of a mirror-down photograph. It is the 2nd figure which shows the AF point display position at the time of a mirror lock-up shooting and the mirror-down shooting. It is a figure which shows the 1st example which shifts the position which superimposes and displays the AF point by a focus detection pixel block. It is a figure which shows the 2nd example which shifts the position which superimposes and displays the AF point by a focus detection pixel block. It is a flowchart which shows an example of the photographing process by the digital camera of this embodiment.

FIG. 1 is a block diagram showing an overall configuration of the digital camera 1 according to the present embodiment. The digital camera 1 realizes a photographing device, a photographing method, and a photographing program. The photographing device, the photographing method, and the device that realizes the photographing program are not limited to the digital camera 1, and may be various electric devices and electronic devices other than the digital camera 1.

The digital camera 1 has, for example, an optical view finder (OVF: Optical View Finder) and an electronic view finder (EVF: Electronic View Finder), and also has a hybrid finder that superimposes and displays an OVF display and an EVF display. It can be a camera.

As shown in FIG. 1, the digital camera 1 is mainly composed of a camera body 100 having a shooting function and an interchangeable lens 200 having a built-in shooting optical system and being removable from the camera body 100.

The interchangeable lens 200 includes a plurality of lenses (two in the illustrated example), an aperture 202 arranged between the plurality of lenses 201 (between the two lenses 201 in the illustrated example), and a lens driving mechanism 203. And the lens CPU 204.

The lens 201 gives positive or negative power (converges and diverges) to the subject light in order to form the subject light on the image sensor (imaging element) 103 described later. The aperture 202 adjusts the amount of light at the time of shooting by adjusting its own aperture diameter, and also has a function as an exposure second time adjusting shutter at the time of shooting a still image. The lens 201 and the aperture 202 are held so as to be movable in the optical axis direction, and are moved in the optical axis direction by the lens driving mechanism 203 to perform zooming and focusing. The lens CPU 204 sends a command to the lens drive mechanism 203 to perform aperture control of the aperture 202, zooming control by the lens 201, and focusing control. Further, the lens CPU 204 communicates with the camera CPU 101 described later via a lens side mount (not shown).

The camera body 100 has a camera CPU 101 that controls various controls of the camera body 100. The camera CPU 101 includes a calculation unit, a ROM (Read Only Memory), a RAM (Random Access Memory), an A / D converter, a D / A converter, a communication interface circuit, and the like. In FIG. 1, a reference numeral 101X is attached to the ROM of the camera CPU 101 for description. Based on a predetermined program stored in the ROM 101X of the camera CPU 101, various circuits included in the camera body 100 are driven to perform a series of zooming processing, focus adjustment processing (AF processing), photographing processing, image processing, recording processing, and the like. Perform the action. Lens control such as zooming process and focus adjustment process is executed by communicating with the lens CPU 204 via the lens control circuit 102, the camera side mount contact (not shown), and the lens side mount (not shown).

The camera body 100 has an image sensor (imaging element) 103 that forms an image of subject light incident from the photographing optical system (lens 201, aperture 202) of the interchangeable lens 200. The image sensor 103 is composed of, for example, a CMOS image sensor and its peripheral circuits, and has M pixels in the horizontal direction and N pixels in the vertical direction arranged squarely, and a Bayer-arranged primary color mosaic filter is formed on-chip. In addition, a two-dimensional single-plate color sensor is used (M and N are natural numbers, and the magnitude relationship between them does not matter).

The image pickup sensor drive circuit 104 controls the image pickup operation of the image pickup sensor 103 and transmits the acquired image signal to the camera CPU 101. The image processing circuit 105 performs processing such as color interpolation, γ conversion, and image compression of the image acquired by the image sensor 103. Further, the image processing circuit 105 processes various information to be superimposed and displayed by the EVF. Further, the various information can be superimposed not only on the EVF display but also on the display on the external display 107. Here, the various information may include, for example, information such as an overexposed portion, a blacked out portion, a focused portion, and a contour portion.

The image pickup sensor 103 further includes a focus detection pixel on the image pickup surface, and transmits the output of the focus detection pixel to the camera CPU 101. The detailed structure of the image pickup sensor 103 including the focus detection pixels will be described in detail later. The camera CPU 101 calculates the defocus amount based on the acquired focus detection data, and acquires information for driving the lens 201 in focusing.

The photometric sensor 106 is arranged, for example, in the finder optical system 112, which will be described later, and detects the brightness of the subject at the time of shooting and transmits it to the camera CPU 101. The camera CPU 101 calculates appropriate exposure conditions (exposure time, aperture value, sensitivity, etc.) based on the acquired photometric data, and sets the operation of the digital camera 1. Although the configuration is provided with the photometric sensor 106 here, the output from the image pickup sensor 103 can be used instead of the photometric sensor 106 by holding the shutter 115 described later in the open state.

The external display 107 is composed of, for example, an LCD or the like, and displays a preview image at the time of shooting, a confirmation image after shooting, a reproduced image of the recorded image, information on a shooting mode of the camera, and various other information. .. The operation switch group 108 includes a power switch, a shooting switch, a shooting mode selection switch, and the like. The image recording memory 109 is, for example, a detachable memory for recording captured images including moving images and still images.

The mirror drive control circuit 110 controls mirror lockup / mirror down of the quick return half mirror 111 composed of half mirrors. The quick return half mirror 111 branches the light beam incident from the photographing optical system (lens 201, aperture 202) of the interchangeable lens 200 into the finder optical system 112 and the imaging sensor 103, respectively, and the focusing screen 113 and / or the imaging sensor, respectively. An image is formed on the imaging surface of 103. The finder optical system 112 includes a pentaprism 112X that makes the subject image that is reflected by the quick return half mirror 111 and first imaged on the focusing screen 113 into an erect image, and an eyepiece 112Y that looks into the erect image by the pentaprism 112X. have. The shutter drive control circuit 114 controls the opening and closing of the shutter 115 arranged immediately before the image sensor 103 to control the exposure and shading of the image sensor 103.

The camera shake detection sensor 116 detects the camera shake state of the digital camera 1 and transmits the camera shake data to the camera CPU 101. The sensor shift control circuit 117 controls the shift of the position of the image pickup sensor 103 based on the camera shake data of the camera shake detection sensor 116 to perform camera shake correction. As the camera shake detection sensor 116, for example, at least one of an angular acceleration sensor and an acceleration sensor can be used. The image stabilization can also be realized by shifting the position of the lens 201 instead of / in addition to shifting the position of the image sensor 103.

The EVF display control circuit 118 is arranged in the finder optical system 112, and controls the display of the EVF display 119 for superimposing the EVF (electronic viewfinder) display on the OVF (optical viewfinder) display. The EVF display 119 is a transmissive display, and for example, a transmissive organic EL display can be used. As a result, a hybrid finder that superimposes the OVF (optical viewfinder) display and the EVF (electronic viewfinder) display is configured. The EVF display 119 functions as a "superimposed display unit" described later, and the EVF display control circuit 118 functions as a "shift control unit" described later. The EVF display 119 functioning as the "superimposed display unit" can superimpose and display various information such as AF point information on the OVF display, the EVF display, or the hybrid finder display, for example.

The image buffer memory 120 is a memory for temporarily storing and reading various images (recorded image, external display image, EVF display image, etc.). The image buffer memory 120 is preferably a FIFO (First-In First-Out) type memory. Images read from the image sensor 103 and subjected to image processing are sequentially stored in the image buffer memory 120. Then, by sequentially reading the image data from the image buffer memory 120, the image is displayed on the external display 107 or the EVF display 119. Further, an image compression process or the like is performed to record the captured image in the image recording memory 109. At this time, by shifting the image reading area based on the camera shake data of the camera shake detection sensor 116, the camera shake can be electronically corrected without mechanically shifting the image pickup sensor 103.

The eyepiece detection sensor 121 is a sensor that detects whether or not the eyepiece 112Y of the finder optical system 112 is being viewed. For example, a time of flight (ToF) type proximity sensor or the like can be used. ..

Many components of the camera body 100 are connected to each other by a bus 122 so that various signals, data, and the like can be exchanged.

The configuration of the digital camera 1 described above is only an example, and various design changes can be made. For example, the hybrid finder is not limited to the above-described configuration, and for example, as disclosed in Patent Document 1 described above, a half mirror may be arranged in front of the eyepiece to project an EVF image.

The quick return half mirror 111 is composed of a half mirror, and has a mirror down position that is inserted into the shooting optical path to reflect the subject light to the finder optical system 112 and transmit it to the image pickup sensor (imaging element) 103, and a shooting optical path. It is rotatable with and from the mirror-up position where the subject light is retracted from the mirror and passed through the image pickup sensor (imaging element) 103. In FIG. 1, the quick return half mirror 111 at the mirror down position is drawn with a solid line, and the quick return half mirror 111 at the mirror up position is drawn with a broken line.

In the digital camera 1 according to the present embodiment, at the mirror down position of the quick return half mirror 111, a part of the light transmitted through the quick return half mirror 111 is incident on the image pickup sensor 103 to perform focus detection, while the quick return half is performed. At the mirror-up position of the mirror 111, all the light that has passed through the quick return half mirror 111 is incident on the image pickup sensor 103 to perform focus detection.

FIG. 2 is a schematic plan view schematically showing the detailed structure of a part of the image pickup sensor 103 including the focus detection pixels. In the example of FIG. 2, a total of 40 pixels of 5 vertical pixels × 8 horizontal pixels, which are a part of the image sensor 103, are shown, and 8 pixels extending in the horizontal direction at the center in the vertical direction are focus detection pixels. The other 32 pixels are imaging pixels. Each pixel has a basic configuration in which a photoelectric conversion unit is arranged inside the microlens. As for the focus detection pixels, the left half of the photoelectric conversion unit is shielded from light and the right half is exposed as the opening R (SR pixel), and the right half of the photoelectric conversion unit is shielded from light and the left half is the opening L. It has an exposed left aperture pixel (SL pixel). The right aperture pixel (SR pixel) and the left aperture pixel (SL pixel) of the focus detection pixel receive light by dividing the exit pupil surface of the imaging optical system. This makes it possible to perform focus detection using the image plane phase difference method.

FIG. 3 is a diagram showing an example of the arrangement of the distance measuring blocks (distance measuring points) by the focus detection pixels in the imaging area of the image pickup sensor 103. As shown in FIG. 2, the focus detection pixels of the image sensor 103 are arranged in the row direction (horizontal direction), and the focus detection pixel rows are arranged in a plurality of columns at predetermined intervals. The focus detection pixels in the focus detection pixel row form a distance measurement block for each predetermined pixel, and focus detection (distance measurement calculation) is performed using the signals of the focus detection pixels in the distance measurement block. Then, the portion where the ranging block is located becomes the ranging point (the ranging block and the ranging point are equivalent). In the example of FIG. 3, the focus detection pixel row is 5 rows, and each row is divided into 9 columns of ranging blocks, showing a 5 × 9 = 45 focusing point arrangement.

Here, the imaging position on the imaging surface of the imaging sensor 103 shifts depending on whether the quick return half mirror 111 is in the mirror down position or the mirror lockup position (whether it is during shooting or focus detection). Therefore, if the focusing point is superimposed and displayed on the OVF display, the EVF display, or the hybrid finder display as it is, the deviation of the focusing point may impair the convenience of the user (photographer). This is a shift of the AF point due to various parameters such as the thickness and the refractive index of the quick return half mirror 111 in the mirror down position.

In this regard, the digital camera 1 according to the present embodiment is a component for solving the above technical problems and performing a suitable AF point display in which the deviation of the AF point due to the insertion / removal of the quick return half mirror 111 is corrected. It has an EVF display (superimposed display unit) 119 and an EVF display control circuit (shift control unit) 118.

The EVF display (superimposed display unit) 119 detects the focus of the image sensor 103 with respect to the OVF display, the EVF display, or the hybrid finder display (at least one of the optical image by the finder optical system 112 and the electronic image by the image sensor 103). The AF points by the pixels are superimposed and displayed (superimpose display, superimposed display).

The EVF display control circuit (shift control unit) 118 shifts the position where the AF points are superimposed and displayed according to whether the quick return half mirror 111 is located at the mirror down position or the mirror lockup position.

FIG. 4 is a schematic plan view schematically showing the shift of the AF point display position in the optical viewfinder. FIG. 4 shows an example in which the position where the AF points are superimposed and displayed is shifted according to whether the quick return half mirror 111 is located at the mirror down position or the mirror lockup position. In FIG. 4, the display position of the AF point at the time of mirror lockup shooting of the quick return half mirror 111 is drawn by a solid line, and the display position of the AF point at the time of mirror down shooting of the quick return half mirror 111 is drawn by a broken line. There is. At the time of mirror lockup shooting, the focusing point is displayed only at the position indicated by the solid line, and at the time of mirror down shooting, the focusing point is displayed only at the position indicated by the broken line. Further, FIG. 4 illustrates a schematic drawing of a human face as a superimposed display image.

5A and 5B are first views showing the AF point display positions during mirror lockup shooting and mirror down shooting.

As shown in FIG. 5A, when the quick return half mirror 111 is mirrored up, it is not affected by various parameters such as the thickness and the refractive index of the quick return half mirror 111. In the mirror lockup state of FIG. 5A, the image pickup sensor is arranged so that the distance measuring block at the center of the image pickup sensor is located on the optical axis of the lens. Here, the AF point is displayed at a position on the optical axis of the optical viewfinder when the mirror is down. As a result, it is possible to match the incident position on the distance measuring block at the time of mirror lockup shooting with the distance measuring point display position.

As shown in FIG. 5B, when the quick return half mirror 111 is mirrored down, it is affected by various parameters such as the thickness and the refractive index of the quick return half mirror 111. In the mirror down state of FIG. 5B, the optical axis of the lens shifts downward due to the thickness, refractive index, etc. of the quick return half mirror 111, and the light does not enter the ranging block where the light was incident when the mirror is up. Therefore, it becomes difficult to detect the focus (distance measurement) at a desired position (see the ray trajectory shown by the broken line). Therefore, by shifting the position of the AF point in the optical viewfinder based on the light beam incident on the AF block in the mirror down state, it is preferable to correct the deviation of the AF point due to the insertion / removal of the quick return half mirror 111. The AF point can be displayed (see the ray trajectory shown by the solid line).

6A and 6B are second views showing the AF point display positions during mirror lockup shooting and mirror down shooting. In FIGS. 5A and 5B, an EVF display is used as a superimposing display unit for displaying the distance measurement points, but in FIGS. 6A and 6B, an EVF display is used as a superimposition display unit for superimposing the distance measurement points. A display dedicated to the AF point display, which is different from the device, is used. As a result, in a camera conventionally provided as a dedicated AF point display, the present invention can be carried out by diverting the display and modifying or changing the display AF point. In that case, it can be carried out without major changes in the arrangement and configuration of the AF point display, and since the EVF display control and the AF point display control can be performed separately, each display control is relatively easy. Can be done. Since other parts (ray trails, etc.) are common (same) as those in FIGS. 5A and 5B, overlapping description will be omitted.

In the example of FIG. 4, the EVF display control circuit (shift control unit) 118 superimposes and displays the focus detection points by all the focus detection pixels of the image sensor 103, and shifts the position where the focus detection points are superposed and displayed. There is.

On the other hand, the EVF display control circuit (shift control unit) 118 selects a focus detection pixel block from the focus detection pixels of the image sensor 103, and measures the focus detection pixel block as a unit by the focus detection pixel block. It is also possible to shift the position where the distance points are superimposed and displayed. In this case, the EVF display (superimposed display unit) 119 does not superimpose and display the focus detection points by the remaining focus detection pixel blocks not selected as the focus detection pixel block among the focus detection pixels of the image sensor 102. Is also possible.

FIG. 7 is a diagram showing a first example of shifting the position where the focus detection pixel block superimposes and displays the AF points. In FIG. 7, one (group) focus detection pixel group located in the center of the image sensor 103 is selected as the focus detection pixel block, and the position where the focus detection point by the focus detection pixel block is superimposed and displayed is shifted. Yes (center spot distance measurement). The selection of the AF point is not limited to the center, and any AF point can be selected. Further, the method of displaying the AF points at the time of mirror lockup / mirror down can be the same as in FIGS. 4 to 6. As described above, the AF points other than the selected AF points may not be displayed.

FIG. 8 is a diagram showing a second example of shifting the position where the focus detection pixel block superimposes and displays the AF points. In FIG. 8, a group of 3 × 3 = 9 focus detection pixels located near the center of the image sensor 103 is selected as the focus detection pixel block, and the position where the focus detection point by the focus detection pixel block is superimposed and displayed is shifted. (Center-weighted ranging). The selection of the AF point is not limited to the central block, and the AF point block at any position can be selected. Further, the AF point block size is not limited to 3 × 3 = 9 illustrated in FIG. 8, and any block size can be set. Further, the method of displaying the AF points at the time of mirror lockup / mirror down can be the same as in FIGS. 4 to 6. As described above, the AF points other than the selected AF points may not be displayed.

FIG. 9 is a flowchart showing an example of a shooting process by the digital camera 1 of the present embodiment.

In step ST1, the shooting mode of the digital camera 1 is set. Here, a mirror lockup shooting mode or a mirror down shooting mode is set as the shooting mode of the digital camera.

In step ST2, it is determined whether the shooting mode of the digital camera 1 is the mirror lockup shooting mode or the mirror down shooting mode. If the shooting mode of the digital camera 1 is the mirror lockup shooting mode (step ST2: YES), the process proceeds to step ST3, and if the shooting mode of the digital camera 1 is the mirror lockup shooting mode (step ST2: NO), the process proceeds to step ST10. move on.

In step ST3, the AF point display position in the optical viewfinder is set to the AF point display position at the time of mirror lockup shooting, and the AF points are superimposed and displayed. In step ST4, the process proceeds to step ST5 after waiting for the shutter button to be pressed (step ST4: NO) and when the shutter button is pressed (step ST4: YES). In step ST5, the mirror lockup of the quick return half mirror 111 is performed, in step ST6, distance measurement calculation processing is performed, in step ST7, lens drive is performed based on the distance measurement calculation processing, in step ST8, shooting drive is performed, and in step ST9. Then, the mirror down drive is performed.

In step ST10, the AF point display position in the optical viewfinder is set to the AF point display position at the time of mirror-down shooting, and the AF points are superimposed and displayed. In step ST11, the process proceeds to step ST12 after waiting for the shutter button to be pressed (step ST11: NO) and when the shutter button is pressed (step ST11: YES). In step ST12, the mirror lockup drive of the quick return half mirror 111 is prohibited, in step ST13, distance measurement calculation processing is performed, in step ST14, lens drive is performed based on the distance measurement calculation processing, in step ST15, shooting drive is performed, and step In ST16, the prohibition of mirror lockup drive is lifted.

As described in steps ST3, ST5, and ST6, when the quick return half mirror 111 is located at the mirror lockup position, the distance measurement points corresponding to the mirror lockup position are superimposed and displayed, and then the quick return half mirror 111 is displayed. Is prohibited from being driven to the mirror lockup position, and the distance measurement calculation process is executed.

As described in steps ST10, ST12, and ST13, when the quick return half mirror 111 is located at the mirror down position, the distance measurement points corresponding to the mirror down position are superimposed and displayed, and then the quick return half mirror 111 is displayed. Is prohibited from being driven to the mirror lockup position, and the distance measurement calculation process is executed.

The present invention is not limited to the above embodiment, and can be modified in various ways. In the above embodiment, the size, shape, function, and the like of the components shown in the accompanying drawings are not limited to this, and can be appropriately changed within the range in which the effects of the present invention are exhibited. In addition, it can be appropriately modified and implemented as long as it does not deviate from the scope of the object of the present invention.

1 Digital camera (shooting device)
100 Camera body 101 Camera CPU
101X ROM
102 Lens control circuit 103 Image sensor (image sensor)
104 Image sensor drive circuit 105 Image processing circuit 106 Photometric sensor 107 External display 108 Operation switch group 109 Image recording memory 110 Mirror drive control circuit 111 Quick return half mirror (half mirror)
112 Finder optical system 112X Pentaprism 112Y Eyepiece 113 Focusing screen 114 Shutter drive control circuit 115 Shutter 116 Camera shake detection sensor 117 Sensor shift control circuit 118 EVF display control circuit (shift control unit)
119 EVF display (superimposed display)
120 Image buffer memory 121 Eyepiece detection sensor 122 Bus 200 Interchangeable lens 201 Lens 202 Aperture 203 Lens drive mechanism 204 Lens CPU

Claims (6)

Between the mirror down position, which is inserted on the shooting optical path and reflects the subject light to the finder optical system and transmitted through the image pickup element, and the mirror up position, which is retracted from the shooting light path and allows the subject light to pass through the image pickup element. With a half mirror that can be rotated with
A superimposition display unit that superimposes and displays a focus detection point by a focus detection pixel of the image sensor on at least one of an optical image by the finder optical system and an electron image by the image sensor.
A shift control unit that shifts the position where the AF points are superimposed and displayed according to whether the half mirror is located at the mirror down position or the mirror lockup position.
An imaging device characterized by having. The shift control unit selects a focus detection pixel block from the focus detection pixels of the image sensor, and shifts a position in which the focus detection pixel block superimposes and displays the focus detection pixel block as a unit. do,
The photographing apparatus according to claim 1. The superimposition display unit does not superimpose and display the AF points of the remaining focus detection pixel blocks not selected as the focus detection pixel block among the focus detection pixels of the image sensor.
The photographing apparatus according to claim 2. When the half mirror is located at the mirror down position, after the AF points corresponding to the mirror down position are superimposed and displayed, driving of the half mirror to the mirror lockup position is prohibited to perform distance measurement. Execute arithmetic processing,
When the half mirror is located at the mirror lockup position, after the AF points corresponding to the mirror lockup position are superimposed and displayed, driving of the half mirror to the mirror down position is prohibited to perform distance measurement. Execute arithmetic processing,
The photographing apparatus according to any one of claims 1 to 3, wherein the photographing apparatus is characterized in that. Between the mirror down position, which is inserted on the shooting optical path and reflects the subject light to the finder optical system and transmitted through the image pickup element, and the mirror up position, which is retracted from the shooting light path and allows the subject light to pass through the image pickup element. It is a photographing method using an imaging device having a half mirror that can be rotated by
A step of superimposing and displaying a focus detection point by a focus detection pixel of the image sensor on at least one of an optical image by the finder optical system and an electron image by the image sensor.
A step of shifting the position where the AF points are superimposed and displayed according to whether the half mirror is located at the mirror down position or the mirror lockup position.
A shooting method characterized by having. Between the mirror down position, which is inserted on the shooting optical path and reflects the subject light to the finder optical system and transmitted through the image pickup element, and the mirror up position, which is retracted from the shooting light path and allows the subject light to pass through the image pickup element. It is a photographing program using an imaging device having a half mirror that can be rotated by
A step of superimposing and displaying a focus detection point by a focus detection pixel of the image sensor on at least one of an optical image by the finder optical system and an electron image by the image sensor.
A step of shifting the position where the AF points are superimposed and displayed according to whether the half mirror is located at the mirror down position or the mirror lockup position.
A shooting program characterized by having a computer execute.

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