JP2014228642A - Imaging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of a photograph in which a subject closes his/her eyes when pre-flash operation is executed.SOLUTION: When pre-flash operation determination means determines that pre-flash operation is not executed, mirror drive speed setting means sets to drive a mirror member at a first speed, and when the pre-flash operation determination means determines that pre-flash operation is executed, the mirror drive speed setting means sets to drive the mirror member at a second speed higher than the first speed.

Description

  The present invention relates to an imaging apparatus capable of executing a main light emission operation for illuminating a subject during photographing and a pre-light emission operation for illuminating the subject prior to the main light emission operation.

  A single-lens reflex camera among imaging devices is provided with a so-called quick return mirror (hereinafter simply referred to as a mirror) that enters and exits the optical path from the imaging optical system (that is, performs an up operation and a down operation).

  Patent Document 1 discloses an imaging apparatus that can switch between a normal mode and a silent mode as an operation mode by changing a mirror driving speed. In this imaging apparatus, driving noise and impact are reduced by driving the mirror at a lower speed than in the normal mode in the silent mode.

JP 2008-175920 A

  However, in the imaging device disclosed in Patent Document 1, since the mirror is driven at a low speed in the silent mode, the time lag at the time of release becomes long. For example, in shooting using a flash unit that performs pre-flash operation during flash shooting, the interval between the pre-flash operation and the main flash operation becomes long. For this reason, the subject often mistakenly shot the pre-flash operation before photographing and reflected his eyes, resulting in a blinking photograph.

  In view of such a problem, an object of the present invention is to provide an imaging apparatus that prevents occurrence of blinking photographs in flash shooting in a silent mode.

  An imaging apparatus according to one aspect of the present invention is an imaging apparatus capable of executing a main light emission operation for illuminating a subject at the time of shooting and a pre-light emission operation for illuminating the subject prior to the main light emission operation. A mirror member that rotates between a mirror-up position, a mirror drive speed setting unit that sets a drive speed of the mirror member, and a pre-emission operation determination unit that determines whether to perform the pre-emission operation. And when the pre-light emission operation determining means determines that the pre-light emission operation is not performed, the mirror drive speed setting means sets the mirror member to be driven at a first speed, and the pre-light emission operation The mirror drive speed setting means drives the mirror member at a second speed higher than the first speed when the determination means determines that the pre-light emission operation is to be executed. And setting.

  According to the present invention, it is possible to prevent the occurrence of blinking photographs when the pre-flash operation is executed.

It is a block diagram of the camera system which concerns on embodiment of this invention. It is a block diagram which shows the circuit structure of a camera system. It is a flowchart which shows the routine which performs a release process. 6 is a flowchart illustrating a subroutine for determining a flash shooting mode according to the first exemplary embodiment. It is a flowchart which shows the subroutine about imaging | photography process. It is a flowchart which shows the subroutine about a pre light emission process. It is a flowchart about the setting change of a mirror drive speed. 12 is a flowchart illustrating a subroutine for flash photography mode determination according to the second embodiment. It is a flowchart which shows a to-be-recognized process.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each figure, the same members are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a configuration diagram of a camera system according to an embodiment of the present invention. The camera system includes an imaging device 10, an interchangeable lens 20 that can be attached to and detached from the imaging device 10, and an external flash unit 40. The imaging device 10 is an imaging device capable of executing a main light emission operation for illuminating a subject during shooting and a pre-light emission operation for illuminating the subject prior to the main light emission operation.

  The lens microprocessor 201 controls various operations of the interchangeable lens 20 and communicates with the camera microprocessor 101 that controls various operations of the imaging apparatus 10 via a communication contact. Although only one lens is shown in the drawing, the photographing optical system 202 is actually composed of a plurality of lenses. The diaphragm 203 adjusts the amount of light.

  The light beam that has passed through the photographing optical system 202 and the diaphragm 203 is incident on the main mirror (mirror member) 102 of the imaging device 10. The main mirror 102 is a half mirror, and can rotate between a mirror-down position in the imaging optical path from the imaging optical system 202 and a mirror-up position outside the imaging optical path in a mirror box (not shown). Is pivotally supported.

  As shown in FIG. 1, when the main mirror 102 is positioned at the mirror down position, the light beam transmitted through the main mirror 102 is reflected downward by the sub mirror 103 and guided to the focus detection unit 104. The main mirror 102 and the sub mirror 103 constitute an optical path dividing optical system.

  The focus detection unit 104 includes at least a pair of pixel columns (line sensors), and the pair of line sensors photoelectrically converts a pair of images formed by the light beam from the photographing optical system 202 and outputs a signal.

  The light beam reflected by the main mirror 102 forms a subject image on the finder screen 105. The user can observe the subject image on the viewfinder screen 105 via the erect image optical system 107 and the eyepiece 108. The finder display unit 106 displays various information for an observer looking through the optical finder. The finder screen 105, the finder display unit 106, the erect image optical system 107, and the eyepiece lens 108 constitute a finder optical system.

  The photometric sensor 109 measures the subject brightness, and the photometric lens 110 forms an image of the light flux from the subject on the photometric sensor 109.

  A focal plane shutter 111, a low-pass filter 112, and an image sensor 113 are disposed behind the sub mirror 103. The image sensor 113 is constituted by a CCD sensor, a CMOS sensor, or the like, and the focal plane shutter 111 controls exposure of the image sensor 113.

  The built-in flash (built-in light-emitting unit) 114 is a flash unit that is used not only for illuminating the subject at the time of imaging when the external flash unit 40 (described later) is not mounted, but also as auxiliary light for irradiating the subject during focus detection. The Fresnel lens 115 is provided in the built-in flash unit 114.

  The accessory shoe 116 is used for mounting the external flash unit 40 and the like.

The external display unit 117 is provided on the outer surface of the imaging device 10, and an external flash unit (external light emitting unit) 40 that functions as an electronic viewfinder (EVF) is attached to the accessory shoe 116 of the imaging device 10 by a mounting member 405. It is the flash means attached to. The flash microprocessor 401 controls the operation of the external flash unit 40. A discharge arc tube 402 is constituted by a xenon tube or the like, and a reflector 403 reflects a light beam emitted from the discharge arc tube 402 toward a subject. The flash panel 404 controls the light distribution of the light beam reflected by the reflector 403.

  In the present embodiment, the imaging device 10 (camera microprocessor 101) communicates with the interchangeable lens 20 (lens microprocessor 201) and the external flash unit 40 (flash microprocessor 401). Thereby, the imaging device 10 performs control using information held by the interchangeable lens 20 and the external flash unit 40.

  FIG. 2 is a block diagram illustrating a circuit configuration of each unit (the imaging device 10, the interchangeable lens 20, and the external flash unit 40) of the camera system.

  The motor drive circuit 1001 drives the movable part of the imaging device 10.

  The photometric unit 1002 is included in the photometric sensor 109 and measures the luminance of the subject.

  The focus detection unit 1003 is included in the focus detection unit 104 and detects the focus state of the interchangeable lens 20.

  A mirror drive speed setting unit (mirror drive speed setting means) 1004 sets the mirror drive speed of the mirror member. Further, the mirror drive speed setting unit can change the set value of the mirror drive speed, for example, according to the type of the external flash unit 40 attached to the imaging device 10.

  A shutter control circuit 1005 is included in the focal plane shutter 111 and controls the exposure amount of the imaging device 10.

  A diaphragm control circuit 1006 controls the light beam taken into the imaging apparatus 10 and controls the photographing optical system 202.

  The display device 1007 includes a finder display unit 106 and an external display unit 117, and displays the state of the imaging device 10.

  The flash control circuit 1008 controls the built-in flash unit 114.

  The recording circuit 1009 stores the setting state of the imaging device 10, and the imaging circuit 1010 performs an imaging process.

  The lens communication circuit 1011 communicates with the interchangeable lens 20 attached to the imaging apparatus 10, and the communication circuit 1012 communicates with accessories other than the interchangeable lens 20.

  When the switch (SW1) 1013 is turned on, an imaging preparation operation is started, and when the switch (SW2) 1014 is turned on, imaging is started.

  The storage circuit 2001 holds the set value of the interchangeable lens 20, and the lens drive circuit 2002 drives the interchangeable lens 20.

  The lens position detection circuit 2003 detects the position of the interchangeable lens 20, and the lens focal length detection circuit 2004 detects the set focal length of the interchangeable lens 20.

  A diaphragm drive circuit 2005 is included in the diaphragm 203 and drives the diaphragm 203.

  The accessory detection circuit 2006 and the accessory detection switch 2007 detect accessories attached to the interchangeable lens 20.

  The lens communication circuit 2008 performs communication with accessories attached to the imaging device 10 and the interchangeable lens 20. In the present embodiment, the lens communication circuit 2008 communicates a control command from the imaging device 10, shape information held in the interchangeable lens 20, accessory information attached to the interchangeable lens 20, and lens setting value. Also communicate.

  A communication circuit 4001 communicates with the imaging apparatus 10, and a storage circuit 4002 holds a setting value of the external flash unit 40.

  The irradiation angle changing unit 4003 changes the flash irradiation range according to the state of the imaging device 10 and the interchangeable lens 20 to which the external flash unit 40 is attached.

  The flash irradiation angle detection unit 4004 detects a set value of the flash irradiation range.

  The light emission amount monitoring unit 4005 directly monitors the light emission amount of the external flash unit 40.

  The infrared auxiliary light unit 4006 is built in the external flash unit 40.

  The setting unit 4007 sets the state of the external flash unit 40, and the display unit 4008 displays the setting state of the external flash unit 40.

  The light emission amount control circuit 4009 controls the flash light emission amount, and the flash charging circuit 4010 performs flash charging.

  In this embodiment, the communication circuit 4001 is configured to communicate setting information and control information of the external flash unit 40, and infrared light is projected from the infrared auxiliary light unit 4006 based on an instruction from the imaging device 10. It is configured to be.

  Next, control of the imaging device 10 will be described with reference to the flowcharts of FIGS.

  FIG. 3 is a flowchart showing a routine for performing the release process.

  When the release determination is started, it is determined in step 1000 (hereinafter referred to as S1000) whether the release switch is in an ON state or an OFF state. If it is determined that the release switch is in the ON state, the process proceeds to S1010. If it is determined that the release switch is in the OFF state, the process returns to the main routine and enters a standby state.

  In step S1010, the shooting mode of the imaging apparatus 10 is determined. If it is determined that the imaging apparatus 10 is set to the normal shooting mode, the process proceeds to S1020. When it is determined that the imaging apparatus is set to the live view (LV) mode, the process proceeds to S1100 described later.

  In step S1020, it is determined whether or not the imaging apparatus 10 is set to perform flash photography. If it is determined that the flash photography is set, the process proceeds to S1030. If it is determined that the flash photography is not set, the process proceeds to S1070.

  In S1030, a flash shooting mode determination subroutine described later is executed, and the process proceeds to S1040.

  In S1040, a subroutine for the photographing process described later is executed, and the process proceeds to S1050.

  In S1050, it is determined whether or not the imaging apparatus 10 is set to the continuous shooting mode. When it is determined that the single shooting mode is set, the imaging is terminated, the process returns to the main routine, and the standby state is set. If it is determined that the continuous shooting mode is set, then the flow shifts to S1060.

  In step S1060, it is determined whether the release switch is in the ON state or in the OFF state. If it is determined that the state of the release switch continues to be ON, the process returns to S1040 to start the imaging process. If it is determined that the state of the release switch has changed to the OFF state, the process returns to the main routine and enters the standby state.

  In S1070, it is determined whether or not the imaging apparatus 10 is set to the silent mode. When it is determined that the imaging device 10 is set to the silent mode, the process proceeds to S1080. When it is determined that the imaging device 10 is not set to the silent mode, the process proceeds to S1090.

  In S1080, the mirror driving speed of the mirror member is set to the first low-speed mirror driving speed, and the process proceeds to S1040 to execute a subroutine for photographing processing.

  In S1090, the mirror driving speed of the mirror member is set to a high-speed mirror driving speed used in the normal shooting mode, and the process proceeds to S1040 to execute a subroutine for shooting processing.

  Here, for example, as shown in Patent Document 1, when the mirror is driven at a low speed, a drive signal for low-speed driving is output to the motor, and the mirror is driven at a low speed. The signal output to the motor is PWM (Pulse Width Modulation) control. For example, the motor drive speed is changed by changing the duty ratio to 50% or 30%, resulting in the mirror drive speed. Changes.

  Next, a flow when it is determined in S1010 that the shooting mode of the imaging device 10 is set to the live view mode will be described.

  In S1100, it is determined whether or not the imaging apparatus 10 is set to perform flash photography. If it is determined that the flash photography is set, the process proceeds to S1110. If it is determined that flash photography is not set, the process proceeds to S1200.

  In step S1110, a flash shooting mode determination subroutine described later is executed, and the process proceeds to step S1120.

  In S1120, it is determined whether or not the imaging apparatus 10 is set to the silent mode. If it is determined that the imaging apparatus 10 is set to the silent mode, the process proceeds to S1125. When it is determined that the imaging device 10 is not set to the silent mode, the process proceeds to S1126.

  In S1125, mirror down driving is performed at the first low-speed mirror driving speed, and the process proceeds to S1130.

  In S1126, mirror down driving is performed at a high mirror driving speed, and the process proceeds to S1130.

  In step S1130, a subroutine for photographing processing described later is executed, and the process proceeds to next step S1140.

  In S1140, it is determined whether or not the imaging apparatus is set to the continuous shooting mode. If it is determined that the single shooting mode is set, then the flow shifts to S1160. If it is determined that the continuous shooting mode is set, then the flow shifts to S1150.

  In step S1150, it is determined whether the release switch is in the ON state or in the OFF state. If it is determined that the state of the release switch continues to be ON, the process returns to S1130 to start the imaging process. If it is determined that the state of the release switch has changed to the OFF state, the process proceeds to S1160.

  In S1160, mirror-up driving is performed at the set mirror driving speed, and the process proceeds to S1170.

  In S1170, the live view display is activated, the process returns to the main routine, and enters the standby state.

  In S1200, it is determined whether or not the imaging apparatus is set to the silent mode. When it is determined that the imaging device 10 is set to the silent mode, the process proceeds to S1300. If it is determined that the imaging apparatus is not set to the silent mode, the process proceeds to S1205.

  In S1205, the mirror driving speed of the mirror member is set to the high-speed mirror driving speed, and the process proceeds to S1210.

  In S1210, the imaging process which acquires a to-be-photographed image with the image pick-up element 113 is performed, and it transfers to S1220.

  In S1220, mirror-down driving is performed at a high-speed mirror driving speed, and the process proceeds to S1230.

  In S1230, it is determined whether or not the imaging apparatus 10 is set to the continuous shooting mode. If it is determined that the single shooting mode is set, then the flow shifts to S1160. If it is determined that the continuous shooting mode is set, then the flow shifts to S1240.

  In step S1240, it is determined whether the release switch is in the ON state or in the OFF state. If it is determined that the state of the release switch continues to be ON, the process proceeds to S1250. If it is determined that the state of the release switch has changed to the OFF state, the process proceeds to S1160.

  In S1250, mirror-up driving is performed at the high-speed mirror driving speed, and the process returns to S1210.

  In S1300, an imaging process for acquiring a subject image is performed by the imaging element 113, and the process proceeds to S1310.

  In S1310, a shooting preparation process is executed for the next shooting, and the process proceeds to S1320.

  In S1320, it is determined whether or not the imaging apparatus 10 is set to the continuous shooting mode. If it is determined that the single shooting mode is set, then the flow shifts to S1170. If it is determined that the continuous shooting mode is set, then the flow shifts to S1330.

  In step S1330, it is determined whether the release switch is in the ON state or in the OFF state. If it is determined that the state of the release switch continues to be ON, the process proceeds to S1300. If it is determined that the state of the release switch has changed to the OFF state, the process proceeds to S1170.

  FIG. 4 is a flowchart showing a subroutine for flash shooting mode determination.

  Currently, there are a plurality of control methods for controlling the flash means. When divided by the light emission operation, there are a type that emits light only during actual photographing and a type that performs a pre-light emission operation for determining the light emission amount during the main light emission prior to the main light emission operation. Therefore, in the present embodiment, the following determination operation is performed.

  When the flash shooting mode determination is started, in S1500, it is determined whether or not the imaging apparatus 10 is set to the silent mode. If it is determined that the silent mode is set, then the flow shifts to S1510. If it is determined that the mode is not the silent mode, the process proceeds to S1540.

  In step S1510, the camera microprocessor 101 (pre-light emission operation determination unit) determines whether to perform the pre-light emission operation prior to the main light emission operation. If it is determined that the camera microprocessor 101 performs the pre-light emission operation prior to the main light emission operation, the process proceeds to S1530. If it is determined that the camera microprocessor 101 performs only the main light emission operation and does not perform the pre-light emission operation, the process proceeds to S1520.

  In S1520, the mirror driving speed of the mirror member is set to the first low-speed mirror driving speed, and the process returns to the original routine.

  In S1530, the mirror drive speed of the mirror member is set to the second low-speed mirror drive speed, and the process returns to the original routine.

  In S1540, the mirror driving speed of the mirror member is set to the high speed mirror driving speed, and the process returns to the original routine.

  The mirror drive speed has the following relationship.

1st low-speed mirror drive speed <2nd low-speed mirror drive speed <High-speed mirror drive speed By driving in the above relationship, it is possible to perform shooting with reduced mirror disappearance time and release time lag in normal shooting mode. In silent mode, you can shoot without the impact of the mirror. Further, when photographing is performed by performing pre-flash by the flash unit in the silent mode, it is possible to prevent the subject from blinking while reducing the impact of the mirror.

  FIG. 5 is a flowchart showing a subroutine for the photographing process.

  When the shooting process is started, in S1600, it is determined whether or not the pre-flash process is performed in the current shooting process. If it is determined that pre-flash processing is to be performed, then the flow shifts to S1610. If it is determined that the pre-flash process is not performed, the process proceeds to S1620.

  In S1610, a subroutine for pre-flash processing described later is executed, and the process proceeds to S1620.

  In S1620, mirror-up driving is performed at the set mirror driving speed, and the process proceeds to S1630.

  In S1630, the imaging process which acquires a to-be-photographed image with the image pick-up element 113 is implemented, and it transfers to S1640.

  In S1640, it is determined whether or not the imaging apparatus 10 is set to the silent mode. If it is determined that the imaging apparatus 10 is set to the silent mode, the process proceeds to S1650. If it is determined that the imaging apparatus 10 is not set to the silent mode, the process proceeds to S1660.

  In S1650, mirror down driving is performed at the first low-speed mirror driving speed, and the process returns to the original routine.

  In S1660, mirror down driving is performed at the high speed mirror driving speed, and the process returns to the original routine.

  FIG. 6 is a flowchart showing a subroutine for the pre-flash process.

  When the pre-flash process is started, in S1700, it is determined whether or not the previous steady light photometric value has been acquired. If it is determined that the previous stationary light metering value has been acquired, then the flow shifts to S1720. If it is determined that the previous stationary light metering value has not been acquired, the process proceeds to S1710.

  In step S <b> 1710, the photometry unit 1002 performs photometry processing of stationary light, and the process proceeds to step S <b> 1720.

  In S1720, a pre-flash operation is performed, a pre-flash photometric value at the time of light emission is acquired, and the process proceeds to S1730.

  In step S1730, the steady light metering value and the pre-flash metering value are compared, a difference calculation is performed, and the process returns to the original routine.

  FIG. 7 is a flowchart for setting change of the mirror driving speed.

  When the imaging apparatus 10 is set to the mirror driving speed setting mode, in S1800, the setting value of the mirror driving speed set in the imaging apparatus 10 is read, and the process proceeds to S1810.

  In S1810, the current set value is displayed on the display device 1007, and the process proceeds to S1820.

  In S1820, the setting value of the mirror driving speed can be changed. For example, the type of the external flash unit 40 attached to the imaging apparatus 10 may be changed. In S1820, it is determined whether or not a setting value change has been input. If it is determined that the set value has been input, the process proceeds to S1830. If it is determined that the set value has not been input, then the flow shifts to S1850.

  In S1830, the updated set value is displayed on the display device 1007, and the process proceeds to S1840.

  In S1840, the updated set value is stored in the recording circuit 1009, and the process proceeds to S1850.

  In S1850, it is determined whether an operation for ending the setting mode has been performed. If it is determined that the setting mode end operation has been performed, the process returns to the main routine. If it is determined that the setting mode end operation has not been performed, the process returns to S1820.

  In this embodiment, subject recognition processing is performed in flash shooting mode determination. With reference to FIGS. 8 and 9, the flash photographing mode in the case of subject recognition processing will be described. Subroutines relating to the release process, the photographing process, and the pre-flash process are the same as those in the first embodiment, and a description thereof will be omitted.

  In addition to the circuit configuration shown in FIG. 2, the imaging apparatus 10 according to the second embodiment includes a subject recognition circuit (subject recognition unit), a distance calculation circuit (distance calculation unit), and a distance determination circuit (distance determination unit).

  The subject recognition circuit performs subject recognition processing. The subject recognition circuit has, as subject recognition processing modes, a mode that prioritizes subjects that are close to the subject selection mode, and a mode that preferentially selects registered subjects that are registered in advance. Further, the subject recognition circuit can recognize whether the subject is a person or other scenery or object.

  The distance calculation circuit can calculate the distance between the imaging device 10 and the subject (subject distance).

  The distance determination circuit determines whether the subject distance calculated by the distance calculation circuit is a predetermined value or less, as will be described later.

  FIG. 8 is a flowchart showing a subroutine for flash shooting mode determination.

  When the flash shooting mode determination is started, in S1900, it is determined whether or not the imaging apparatus 10 is set to the silent mode. If it is determined that the silent mode is set, then the flow shifts to S1910. If it is determined that the mode is not the silent mode, the process proceeds to S1940.

  In S1910, it is determined whether or not the flash unit performs a pre-flash operation before the main flash. If it is determined that the flash means performs the pre-light emission operation before the main light emission, the process proceeds to S1930. If it is determined that the flash unit performs only the main light emission operation and does not perform the pre-light emission operation, the process proceeds to S1920.

  In S1920, the mirror driving speed of the mirror member is set to the first low-speed mirror driving speed, and the process returns to the original routine.

  In S1930, subject recognition processing is executed, and the process returns to the original routine.

  In S1940, the mirror driving speed of the mirror member is set to the high speed mirror driving speed, and the process returns to the original routine.

  FIG. 9 is a flowchart showing subject recognition processing.

  When the subject recognition process is started, the shooting mode of the imaging device 10 is determined in S2000. If it is determined that the imaging apparatus 10 is set to the normal shooting mode, the process proceeds to S2010. When it is determined that the imaging apparatus 10 is set to the live view mode, the process proceeds to S2020.

  In S2010, image information is acquired from the photometry unit 1002, and the process proceeds to S2030. Here, in this embodiment, the image is acquired from the photometry unit, but the light beam of the finder optical system may be divided and the image may be acquired by an imaging unit arranged in the finder optical system.

  In S2020, image information is acquired from the image sensor 113, and the process proceeds to S2030.

  In S2030, subject recognition processing is performed by the subject recognition circuit using the image information acquired in S2010 or S2020, and the process proceeds to S2040.

  In S2040, a determination is made as to which mode is selected as the subject selection mode of the subject recognition circuit. If it is determined that the subject selection mode is a mode in which priority is given to a nearby subject, the process proceeds to S2050. If it is determined that the subject selection mode is a mode for preferentially selecting a registered subject registered in advance in the imaging apparatus 10, the process proceeds to S2060.

  In step S2050, a subject that is close to the imaging device 10 is selected from the subjects extracted in the subject recognition process, and the process proceeds to step S2070.

  In step S2060, a subject that matches the subject registered in the imaging device 10 is selected from the subjects extracted in the subject recognition process, and the process advances to step S2070.

  In S2070, it is determined whether or not the recognized subject is a person. If it is determined that the recognized subject is a person, the process proceeds to S2080. If it is determined that the recognized subject is not a person, the process proceeds to S2120.

  In S2080, the current stop position of the lens is detected, and the flow proceeds to S2090.

  In S2090, a distance calculation process to the subject recognized by the distance calculation circuit is executed, and the process proceeds to S2100.

  In step S2100, the distance determination circuit determines whether the distance to the subject is equal to or less than a predetermined value. If it is determined that the distance to the subject is equal to or less than the predetermined value, the process proceeds to S2110. If it is determined that the distance to the subject is greater than the predetermined value, the process proceeds to S2120.

  In S2110, the mirror drive speed of the mirror member is set to the second low-speed mirror drive speed, and the process returns to the original routine.

  In S2120, the mirror driving speed of the mirror member is set to the high speed mirror driving speed, and the process returns to the original routine.

  In this embodiment, when the subject is recognized and the subject distance is determined, and the pre-flash is emitted by the flash unit in the silent mode and shooting is performed, in the case where no blinking occurs, the mirror is used. The member is driven at the first low-speed mirror driving speed. Therefore, it is possible to shoot in a state where the effect of the silent mode is enhanced.

  As described above, according to the present embodiment, even when the pre-light emission is performed by the flash unit in the silent mode of the imaging apparatus, it is possible to prevent the subject from blinking. Even if the flash unit is changed, it is possible to prevent the subject from blinking due to the pre-flash by setting the speed according to the flash unit.

  In this embodiment, the flow for changing the mirror driving speed of the mirror member according to the light emission mode of the flash unit has been described. However, the configuration in which the mirror driving speed of the mirror member can be changed according to the light emission mode of the flash unit. Then, you may implement other than the said flow.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary.

101 Camera microprocessor (pre-light emission operation judging means)
102 Main mirror 114 Built-in flash 1004 Mirror drive speed setting unit (mirror drive speed setting means)

Claims (3)

An imaging apparatus capable of executing a main light emission operation for illuminating a subject during shooting and a pre-light emission operation for illuminating the subject prior to the main light emission operation,
A mirror member that rotates between a mirror down position and a mirror up position;
Mirror drive speed setting means for setting the drive speed of the mirror member;
Pre-emission operation determination means for determining whether to perform the pre-emission operation,
When the pre-light emission operation determining means determines that the pre-light emission operation is not performed, the mirror drive speed setting means is set to drive the mirror member at a first speed,
The mirror drive speed setting means is set to drive the mirror member at a second speed higher than the first speed when the pre-light emission operation determining means determines to execute the pre-light emission operation. An imaging apparatus characterized by the above. It further comprises subject recognition means capable of recognizing whether the subject is a person,
When the subject recognition means recognizes that the subject is a person, the pre-flash operation determining means determines to execute the pre-flash operation;
The imaging apparatus according to claim 1, wherein when the subject recognition unit recognizes that the subject is not a person, the pre-light emission operation determination unit determines that the pre-light emission operation is not performed. Distance calculating means capable of calculating the distance to the subject;
Distance determining means for determining whether the distance calculated by the distance calculating means is equal to or less than a predetermined value;
When the distance determination means determines that the distance is equal to or less than the predetermined value, the pre-light emission operation determination means determines to execute the pre-light emission operation;
3. The pre-light emission operation determination unit determines that the pre-light emission operation is not performed when the distance determination unit determines that the distance is not less than the predetermined value. Imaging device.