Image capture device and control method thereof

Abstract

To prevent a variation in exposure for each photographing for the same subject in performing photometry within a range corresponding to a focus detection frame set in a focus detection system in which the size or the position of the focus detection frame changes.SOLUTION: An imaging apparatus has: first setting means that sets a focus detection area for performing focus detection; second setting means that sets a first photometric area for performing photometry; determination means that determines whether the size of the first photometric area within a predetermined range is smaller than a predetermined area determined in advance; third setting means that, when the size of the first photometric area is smaller than the predetermined area, sets a second photometric area obtained by expanding the first photometric area; and photometric means that, when the second photometric area is set, performs photometry on the second photometric area, and when the second photometric area is not set, performs photometry on the first photometric area.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an image capture apparatus and a control method thereof, and more particularly to an automatic exposure control technique in an image capture apparatus. [Background technology]

[0002] Conventionally, in order to measure the appropriate exposure for a subject, light measurement is performed within the range corresponding to the focus detection frame, and the result is used for exposure control. Meanwhile, a multi-point AF (Auto Focus) function is known that sets the focus detection frame at a point corresponding to the subject among multiple focus detection points, and the size and position of the focus detection frame change depending on the subject.

[0003] Furthermore, for example, Patent Document 1 discloses a method for setting a display frame at a focus point that is located at a position that can be determined to be a subject based on brightness among multiple focus points within a shooting screen in multi-point AF. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2010-266503 A Summary of the Invention [Problem to be solved by the invention]

[0005] As an example, a method for setting the focus detection frame when a car is used as the subject is shown in Fig. 12(a). It is desirable that the focus detection frame 1201 be set to a range that matches the entire subject, as shown by the dashed line in Fig. 12(a). However, with the method of Patent Document 1, for example, depending on how the light hits the subject, only a small portion of the subject may be determined to be the subject, and the focus detection frame 1201 may be displayed (Fig. 12(b)). Furthermore, if the subject or imaging device moves, the position of the focus detection frame 1201 will move within the subject (Fig. 12(c)).

[0006] When metering is performed within the range corresponding to the focus detection frame, the metering results will be significantly different between the case where the focus detection frame 1201 is set on the body of the car as in Fig. 12(b) and the case where the focus detection frame 1201 is set on the tires as in Fig. 12(c). If exposure control is performed based on these metering results, the exposure may differ significantly for each shot, even if the subject and angle of view are the same.

[0007] The present invention has been made in consideration of the above-mentioned problems, and aims to suppress exposure fluctuations between shots of the same subject when metering is performed within a range corresponding to a set focus detection frame in a focus detection method in which the size and position of the focus detection frame change. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the imaging device of the present invention has a first setting means for setting a focus detection area for focus detection, a second setting means for setting a first metering area for metering based on the focus detection area, a determination means for determining whether the size of the first metering area in a specified range is smaller than a predetermined area, a third setting means for setting a second metering area that is wider than the first metering area if the size of the first metering area is smaller than the predetermined area, and a metering means for performing metering of the second metering area if the second metering area is set, and performing metering of the first metering area if the second metering area is not set. Effect of the Invention

[0009] According to the present invention, when metering is performed within a range corresponding to a focus detection frame set in a focus detection method in which the size and position of the focus detection frame change, it is possible to suppress exposure variation between shots of the same subject. [Brief description of the drawings]

[0010] [Figure 1] 1 is a block diagram showing a schematic configuration of an image capturing apparatus according to an embodiment of the present invention. [Diagram 2]4 is a conceptual diagram for explaining a focus detection area in the embodiment. [Diagram 3] 5 is a flowchart showing a still image shooting process in the first and third embodiments. [Figure 4] 5A and 5B are diagrams showing examples of light metering frames set corresponding to focus detection frames. [Diagram 5] 6A and 6B are diagrams showing an example of a light metering frame having a wider range than the light metering frame corresponding to the focus detection frame in the first embodiment. [Figure 6] 10 is a flowchart showing a still image capturing process in the second embodiment. [Figure 7] 10 is a flowchart showing a photometric value recalculation process in the second embodiment. [Figure 8] FIG. 13 is a diagram for explaining a method for setting a specific range in the third embodiment. [Figure 9] 13A to 13C are diagrams showing an example in which a focus detection frame is set on the contour of a subject in the third embodiment. [Figure 10] 13A and 13B are diagrams showing an example of a case where a method for determining the size of a photometry frame according to the third embodiment is applied. [Figure 11] 13A and 13B are diagrams showing an example of a case where the photometry range is expanded by determining the size of the photometry frame in the third embodiment. [Figure 12] 11A and 11B are diagrams for explaining problems with a method for setting a photometry frame in a conventional example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the embodiments will be described in detail with reference to the attached drawings. Note that the following embodiments do not limit the invention according to the claims. Although the embodiments describe a number of features, not all of these features are essential to the invention, and the features may be combined in any manner. Furthermore, in the attached drawings, the same reference numbers are used for the same or similar configurations, and duplicated descriptions are omitted.

[0012] Fig. 1 is a block diagram illustrating the configuration of a camera as an example of an imaging device according to an embodiment of the present invention. The camera of this embodiment is composed of a camera body 100 and a lens unit 200 that is detachable from the camera body 100. Below, the configuration of the camera with the lens unit 200 attached to the camera body 100 will be described with reference to Fig. 1.

[0013] The camera system control unit 101 comprehensively controls each unit of the camera body 100. The shutter 104 is driven and controlled by a signal from the camera system control unit 101 to either a retracted state in which the light flux incident via the lens unit 200 is guided to the image sensor 103, or a light blocking state in which the image sensor 103 is blocked. The image sensor 103 is a charge accumulation type image sensor such as a CMOS, and photoelectrically converts the light flux (optical image of a subject) incident via the lens unit 200 and the shutter 104 to output an analog image signal.

[0014] The A / D conversion unit 105 converts an analog image signal output from the image sensor 103 into a digital image signal, and the converted digital image signal is stored in the memory 102 via the memory control unit 107. The memory 102 is a memory such as a RAM or a ROM connected to the camera system control unit 101, and stores various signals including the digital image signal from the A / D conversion unit 105 described above, as well as image data being processed by the image processing unit 106. The image processing unit 106 performs resizing processing such as predetermined image interpolation and reduction, color conversion processing, and image signal correction processing such as saturated pixels and crushed black pixels, on the signals and data from the memory 102 input via the memory control unit 107. The image data obtained by processing is stored again in the memory 102 via the memory control unit 107.

[0015] The D / A conversion unit 108 converts the image data held in the memory 102 into an analog image signal for display. The display unit 109 is composed of a TFT type LCD (thin film transistor driven liquid crystal display) or the like, and can display an image based on the analog image signal for display. The display unit 109 can also perform a live view display by sequentially displaying image data obtained by capturing an image via the D / A conversion unit 108. The display unit 109 can also display various information other than images.

[0016] A timing generator (TG) 110 transmits timing related to operations within the camera, such as drive timing and frame rate changes for the image sensor 103, and timing for exposing / shielding the image sensor 103 by the shutter 104, to each section of the camera body 100.

[0017] The release button 111 and the operation unit 112 are operation members for the user to input various operation instructions to the camera system control unit 101. When the user operates the release button 111 midway (e.g., halfway down), SW1 is turned on, which instructs the start of an image capture preparation operation, and a focus detection calculation process, a photometry calculation process, and the like are started. When the user completes the operation of the release button 111 (e.g., full down), SW2 is turned on, which instructs the start of an image capture operation, and a series of processes from capturing an image of a subject to recording the image are started. The operation unit 112 is made up of operation members such as switches, buttons, and dials that allow the user to give various instructions and settings to the camera body 100, and includes a power switch, a menu button, a direction instruction button, and the like. Note that the display unit 109 may be a capacitive touch panel, and a configuration may be adopted in which the same information input as when the operation unit 112 is operated can be made by operating a UI displayed on the display unit 109.

[0018] The focus detection unit 113 sets a focus detection frame (focus detection area) within the screen, which will be described later, and performs calculations related to focus detection using image data obtained from the image processing unit 106. The photometry unit 114 sets a photometry frame (photometry area) within the screen, which will be described later, and performs photometry calculations using image data obtained from the image processing unit 106. Note that the focus detection unit 113 and the photometry unit 114 may be configured to be provided integrally with the camera system control unit 101. In that case, the camera system control unit 101 executes the various processes performed by the focus detection unit 113 and the photometry unit 114 described above.

[0019] In this embodiment, the focus detection method includes a multi-point AF in which the screen is divided into a plurality of regions and focus detection is performed for any divided region, and a fixed AF in which focus detection is performed for a predetermined fixed region. FIG. 2(a) is a diagram showing an example of screen division for multi-point AF. Note that FIG. 2(a) shows an example in which the screen is divided into 8×8 divided regions, but the number of divisions and the division method are not limited to this, and the divided regions may be arranged discretely without contacting each other. Then, for example, an area corresponding to a subject detected by subject detection is set as a focus detection area among the plurality of divided regions. Note that the subject detection may be performed using a known method, so a description thereof is omitted here. FIG. 2(b) is a diagram showing an example of a focus detection area for fixed AF, and shows a case in which the focus detection area is set in the center of the screen. It may be set to use a fixed area set in advance among the divided regions in FIG. 2(a). It may be configured so that the size and position of focus detection can be set by the user in advance before starting the shooting process. Note that in the following description, a frame indicating the range of the focus detection area is called a focus detection frame.

[0020] The lens system control unit 201 comprehensively controls the operation of the lens unit 200. When the lens unit 200 is attached to the camera body 100, the lens system control unit 201 and the camera system control unit 101 can communicate with each other via an interface (not shown). Then, for example, in response to an instruction from the camera system control unit 101, information related to the lens unit 200 attached to the camera body 100 is output to the camera system control unit 101.

[0021] The photographing lens group 202 is a lens group consisting of a plurality of lenses including an optical axis shift lens, a zoom lens, a focus lens, etc. The aperture 203 is a light amount adjustment member for adjusting the light amount of a light beam transmitted through the photographing lens group 202, and is controlled by the lens system control unit 201. In addition, in the case where the lens unit 200 is configured not to include the lens system control unit 201, the operations of the photographing lens group 202 and the aperture 203 are controlled by instructions from the camera system control unit 101.

[0022] Recording medium 300 is a recording medium capable of recording the image signals recorded in memory 102, and is, for example, a memory card or the like that can be inserted into or removed from camera body 100, an optical disk such as a DVD-RW disk, or a magnetic disk such as a hard disk, etc. Also, recording medium 300 may not be removable, but may be built into camera body 100 in advance.

[0023] <First embodiment> Next, a first embodiment of the present invention will be described. FIG. 3 is a flowchart showing the still image capturing process in the first embodiment. First, in S101, the focus detection mode (multi-point AF / fixed AF) previously set by the user is determined. Next, in S102, it is determined whether SW1 of the release button 111 is ON, and if it is not ON, the process returns to S101 and the determination of the focus detection mode is repeated. On the other hand, if it is ON, the process proceeds to S103, and the focus detection unit 113 sets a focus detection frame according to the focus detection mode set in S101 and performs focus detection processing. In S104, the detected focus state is determined, and if it is not determined to be in focus, the process proceeds to S105, the focus lens is driven according to the focus state, and the process returns to S102 to determine the ON state of SW1 again. If it is determined to be in focus in S104, the process proceeds to S106, and a photometry frame linked to the focus detection frame is set.

[0024] When the metering frame is set in S106, in S107, it is determined whether or not the size of the metering frame is fixed depending on the focus detection mode determined in S101. When the focus detection mode is a mode that performs fixed AF, the metering frame linked to the focus detection frame is also fixed. On the other hand, when the focus detection mode is a mode that performs multi-point AF, the size and position of the metering frame linked to the focus detection frame changes depending on the shooting scene. Therefore, when the size of the metering frame is fixed, that is, when the focus detection mode is a mode that performs fixed AF, the process proceeds to S110, and metering is performed for the metering frame set in S106.

[0025] On the other hand, if the size of the exposure metering frame changes, that is, if the focus detection mode is a mode that performs multi-point AF, the process proceeds to S108, where the size of the exposure metering frame is determined. If the exposure metering frame is equal to or larger than the predetermined area, the process proceeds to S110, where exposure metering is performed for the exposure metering frame set in S106, as in the case where the size of the exposure metering frame is fixed. If the exposure metering frame is smaller than the predetermined area, the process proceeds to S109, where a wider exposure metering frame, for example, four times the area of ​​the exposure metering frame set in S106, is set, and the process proceeds to S110. In this case, in S110, exposure metering is performed for the exposure metering frame set in S109.

[0026] Next, in S111, it is determined whether SW2 of the release button 111 is ON. If it is not ON, the process returns to S102 and repeats the above process. If it is ON, the process proceeds to S112, where the photographing process is performed and the process ends. In this embodiment, the predetermined area used for determining the photometry frame is, for example, an area in which the photometry frame occupies less than 5% of the entire screen. In addition, the predetermined area may be configured to have a different threshold value used for determination depending on the shooting scene and shooting mode. For example, when the subject is a moving object, the probability that the main subject will fall outside the photometry frame is also high, so the predetermined area is made larger than other scenes and modes when an animal or vehicle is detected by the subject detection technology or when a sports shooting mode is set. As described above, the predetermined area used for determining the photometry frame according to this embodiment may be set to a threshold value for determination that is a size that is estimated to be highly likely to cause the subject to be metered to fall outside the photometry frame.

[0027] Next, the processes in S108 and S109 and their effects will be described with reference to Fig. 4 and Fig. 5. Note that in Fig. 4 and Fig. 5, dashed lines indicate a focus detection frame 401, and solid lines indicate a light metering frame 402. Fig. 4(a) shows a case where the focus detection frame 401 captures the entire subject and is displayed large, while Fig. 4(b) shows a case where the focus detection frame 401 becomes part of the subject and is displayed small. In this embodiment, a light metering frame 402 with the same range as the focus detection frame 401 is set as a light metering frame that works in conjunction with the focus detection frame. When the photometry frame 402 is larger than a predetermined area as in the case shown in FIG. 4A (No in S108), photometry is performed for this photometry frame 402.

[0028] On the other hand, when the photometry frame 402 is smaller than the predetermined area (No in S108) as in the case shown in FIG. 4(b), the photometry frame is expanded in S109. A specific example of this is shown in FIG. 5. FIGS. 5(a) and (b) both show a case where the focus detection frame 401 (i.e., the photometry frame 402) is small and the position of the focus detection frame 401 has changed, and for example, a circular area four times the area of ​​the photometry frame 402 set in S106 is set as the photometry frame 403. By expanding the range of the photometry frame 402 in this way, in both cases of FIG. 5(a) and (b), the photometry frame 403 includes the vehicle body and tires, making it possible to suppress fluctuations in the photometry value.

[0029] As described above, according to the first embodiment, even if the size or position of the focus detection frame changes, shooting with stable exposure can be performed by using a light metering frame that is linked to the focus detection frame.

[0030] <Second embodiment> Next, a second embodiment of the present invention will be described. Fig. 6 is a flowchart showing the flow of still image shooting processing in the second embodiment. Note that the same processes as those in Fig. 3 are given the same reference numerals and their explanations are omitted.

[0031] When SW2 of the release button 111 is turned ON in S111, the photometric value is recalculated in S211 using the past photometric value. The recalculation process in S211 will be described later with reference to Fig. 7. Then, in S112, photography is performed using the photometric value obtained in S211, and in S213, the photometric value used in photography is stored. Note that the photometric values ​​stored are for n times, and if this number is exceeded, the oldest photometric value is discarded.

[0032] Next, the flow of the recalculation of the photometric value in S211 will be described with reference to the flowchart of FIG. In S301, it is determined whether the size of the photometry frame determined in S108 is different from the previous result. If it is determined that it is different from the previous result, the process proceeds to S304, where loop_num, which is a loop variable, is set to k, and the process proceeds to S305.

[0033] On the other hand, if it is determined in S301 that it is equal to the previous time, the process proceeds to S302, where it is determined whether loop_num is equal to or greater than 1. If it is determined that it is equal to or greater than 1, then in S303 loop_num is decremented by 1, and the process proceeds to S305. If it is determined in S302 that it is 0, then no particular process is performed, and the process ends.

[0034] In S305, the photometric value is calculated using past photometric values. Here, the past n photometric values ​​are stored, and the photometric value M average is calculated using the following formula: TIFF0007641771000001.tif2199i past exposure values ​​M i The weight applied to the past photometric value of the i-th measurement is w i The weight w i is set so that more weight is given to the most recent information, for example.

[0035] By doing so, when the result of the determination of the size of the photometry frame in S108 changes, the fluctuation in the photometry value caused by the photometry range switching can be made gentler over time for k times after the switch.

[0036] As described above, according to the second embodiment, even if the size of the focus detection frame changes, it is possible to shoot with stable exposure. In particular, during continuous shooting, even if the determination of the size of the exposure metering frame is switched and the range of the exposure metering frame changes, it is possible to shoot with reduced exposure fluctuation.

[0037] The control in the second embodiment described above may be restricted to cases where the shooting scene or subject does not change, such as during continuous shooting.

[0038] <Third embodiment> Next, a third embodiment of the present invention will be described. The flow of the still image shooting process in the third embodiment is the same as that described with reference to the flowchart in Fig. 3, but differs from the first embodiment in the method of determining the size of the photometry frame in S108. Therefore, the method of determining the size of the photometry frame in the third embodiment will be described below.

[0039] 8 shows an example of a focus detection frame and a light metering frame assuming multi-point AF, and a method of determining the center of gravity of the light metering frame will be described using this figure as an example. Projection histograms 803, 804 of the area of ​​the light metering frame 802 corresponding to the focus detection frame 801 are created for the horizontal and vertical axes, respectively, and the coordinates of the maximum values ​​in each projection histogram 803, 804 are determined, and the point indicated by the coordinates is set as the center of gravity 805. Next, a predetermined range from the center of gravity 805 is set as a specific range 806, and the area of ​​the area in the light metering frame 802 included in this specific range 806 is determined. Then, the size of the light metering frame in S108 is determined by determining whether the area of ​​the area in the light metering frame 802 included in the specific range 806 is smaller than a predetermined value.

[0040] If there are multiple focus detection frames and multiple coordinates that can be the center of gravity, a specific range is set for all the centers of gravity and the size of the metering frame is determined for each. At this time, only if all the determination results are determined to be small is the size of the metering frame determined to be small. If the size of the metering frame is ultimately determined to be small, the center of gravity with the largest area of ​​the metering frame within the specific range set for each center of gravity is determined to be the final center of gravity.

[0041] Next, a specific example of a method for determining the size of the photometry frame in the third embodiment will be described with reference to FIGS. In multi-point AF, there are cases where a focus detection frame 901 is set on the contour of the subject as shown in Fig. 9. In such cases, depending on the position of the subject within the screen, there are cases where the focus detection frame 901 includes a large portion of the subject and a large portion of the background as shown in Figs. 9(a) and 9(b). In such cases, if a metering frame 902 linked to the focus detection frame 901 is set, the metering value will differ significantly. Even in such cases, if it can be determined that the size of the metering frame 902 is small, the metering range can be widened to suppress exposure fluctuations, but it may be difficult to determine that the size of the metering frame 902 is small simply by judging the area of ​​the metering frame 902.

[0042] Therefore, in the third embodiment, as shown in Fig. 10, the center of gravity 903 of the light metering frame 902 is found as described in Fig. 8, a predetermined specific range 904 is set from the center of gravity 903, and the area of ​​the region within the light metering frame 902 contained in this specific range 904 is found. In this way, by determining the size using only a portion of the region of the light metering frame 902, it is possible to determine that the light metering frame 902 is small even when the focus detection frame that follows the contour is long.

[0043] An example of the photometry frame 905 that is reset when it is determined that the photometry frame 902 is small is shown in Figure 11. In Figures 11(a) and 11(b), a circular area that includes a wider range than the photometry frame 902 set in S106 is set as the photometry frame 905. In this way, by widening the range of the photometry frame, the photometry range includes equal amounts of the subject and background in both cases of Figures 11(a) and 11(b), and fluctuations in the photometry value can be suppressed.

[0044] As described above, according to the third embodiment, it is possible to shoot with stable exposure even when the size of the focus detection frame changes. Furthermore, even if the exposure metering frame has a shape that is elongated and thin, it is possible to shoot with stable exposure even when the position changes.

[0045] In the third embodiment, it is preferable to obtain the area of ​​the area in the photometry frame included in a predetermined range in determining the size of the photometry frame in S108, but for example, in order to reduce the amount of calculation, it may be determined simply based on the area of ​​the photometry frame area in the screen. That is, it may be configured to determine the area of ​​the photometry frame (area) in an area corresponding to the entire area (entire angle of view) of the image output from the image sensor.

[0046] In the third embodiment, the specific range has been described as being rectangular, but is not limited to a rectangle and may be another shape, such as a circle.

[0047] In addition, in the above example, when the metering frame is smaller than a specified area, a circular metering frame larger than the metering frame is set, but this is not limited to this, and for example, the range may be one in which a divided area is added around the focus detection area corresponding to the current metering frame.

[0048] <Other embodiments> The present invention may be applied to a system consisting of multiple devices (such as a host computer, interface device, scanner, video camera, etc.), or to an apparatus consisting of a single device (such as a copier, facsimile machine, etc.).

[0049] The present invention can also be realized by supplying a program for implementing one or more of the functions of the above-described embodiments to a system or device via a network or a storage medium, and having one or more processors in the computer of the system or device read and execute the program. It can also be realized by a circuit (e.g., ASIC) that implements one or more of the functions.

[0050] The invention is not limited to the above-described embodiments, and various modifications and variations are possible without departing from the spirit and scope of the invention. Accordingly, the following claims are appended to apprise the public of the scope of the invention. [Explanation of symbols]

[0051] 100: camera body, 101: camera system control unit, 103: image sensor, 106: image processing unit, 113: focus detection unit, 114: photometry unit, 200: lens unit, 201: lens system control unit, 202: lens group, 203: aperture

Claims

1. a first setting means for setting a focus detection area in which focus detection is performed; a second setting means for setting a first photometry area for performing photometry based on the focus detection area; a determining means for determining whether or not a size of the first photometric region in a predetermined range is smaller than a predetermined area; a third setting means for setting a second photometric area that is larger than the first photometric area when the size of the first photometric area is smaller than the predetermined area; a photometry means for performing photometry in the second photometry area when the second photometry area is set, and performing photometry in the first photometry area when the second photometry area is not set; An imaging device comprising:

2. the first setting means sets the focus detection area in accordance with a first focus detection mode in which the size and position of the focus detection area are fixed or a second focus detection mode in which the size and position of the focus detection area are variable; 2. The image pickup apparatus according to claim 1, wherein in the first focus detection mode, the determining means does not determine the first photometry area.

3. 3. The imaging device according to claim 1, further comprising a calculation means for calculating a photometric value when the determination result by the determination means changes, using the photometric result by the photometric means and a predetermined number of photometric results previously obtained by the photometric means for a predetermined period after the determination result changes.

4. The calculation means calculates i past photometric values ​​M i The weight applied to the past photometric value of the i-th measurement is w i As the photometric value, M average of 4. The imaging apparatus according to claim 3, wherein the imaging apparatus is configured to calculate the image signal from the signal.

5. The imaging device according to any one of claims 1 to 4, characterized in that the determination means defines an area corresponding to the entire area of ​​an image output by imaging a subject as the specified range, and determines whether the size of the first photometric area is smaller than the specified area.

6. The imaging device according to any one of claims 1 to 4, characterized in that the determination means sets the specified range to an area corresponding to a portion of an image output by imaging a subject, and determines whether the size of the first photometric area is smaller than the specified area.

7. 7. The image pickup apparatus according to claim 6, wherein the predetermined range is a range determined in advance from the center of gravity of the first photometry area.

8. The imaging means further includes:

2. The image pickup apparatus according to claim 1, wherein said image pickup means performs image pickup using a result of said photometry by said photometry means.

9. The imaging means further includes:

5. The image pickup apparatus according to claim 3, wherein the image pickup means performs image pickup using the photometric value obtained by the calculation means.

10. a first setting step of setting a focus detection area for performing focus detection; a second setting step of setting a first photometry area for performing photometry based on the focus detection area; a determining step of determining whether or not the size of the first photometric area is smaller than a predetermined area; a third setting step of setting a second photometric area by expanding the first photometric area when the size of the first photometric area in a predetermined range is smaller than the predetermined area; a photometry step of performing photometry in the second photometry area when the second photometry area is set, and performing photometry in the first photometry area when the second photometry area is not set; 13. A method for controlling an imaging apparatus comprising:

11. A program for causing a computer to execute each step of the method for controlling an imaging apparatus according to claim 10.

12. A computer-readable storage medium storing the program according to claim 11.

Images