JP6725039B2 - Lens barrel and camera - Google Patents

Description

The present invention relates to a lens barrel and a camera.

In a general camera, photometry and distance measurement are performed with the aperture in the lens barrel open, and the aperture is reduced to a predetermined value during exposure. For this reason, when still images are continuously shot (continuously shot), it is necessary to open the aperture for photometry and distance measurement every time one frame is shot, and then narrow down again to a predetermined value. ..
Recently, a stepping motor that can be electrically controlled is often used as a driving source of the aperture of such a camera.

The stepping motor requires initial positioning (pre-excitation) by performing initial energization before driving because the stop position becomes unstable when the energization is cut off. It is necessary to energize (post-excitation) in order to suppress the vibration during the operation. For this reason, when performing continuous shooting in a camera that uses a stepping motor as a drive source for the aperture, a predetermined excitation time is required each time the aperture is opened and closed for each shooting, and this excitation time defines the shooting interval. However, this is an obstacle to increasing the continuous shooting speed.

In order to enable speedy setting of the light amount by driving the aperture mechanism with a stepping motor, the control device on the camera body side sets the aperture mechanism to the control device on the lens side immediately before the end of the photometry operation or immediately before the end of exposure. A configuration has been proposed in which a pre-driving start command is transmitted, and when the control device on the lens side receives this command, energization of the stepping motor of the diaphragm unit is started (see Patent Document 1).

JP, 2006-215399, A

However, in the above-described conventional configuration, the energization start to the diaphragm unit is controlled by a command from the control device on the camera body side. That is, the continuous shooting speed depends on the control of the camera body.

An object of the present invention is to provide a lens barrel and a camera capable of rapidly driving the diaphragm mechanism and improving the continuous shooting speed.

The present invention is a lens barrel mounted on a camera body, wherein a light quantity adjusting member capable of adjusting the quantity of light incident on the camera body, and a drive unit for driving the light quantity adjusting member by using electromagnetic force, A control unit that controls energization to the drive unit, wherein the control unit generates the second and subsequent images when the camera body continuously captures images and generates at least two images. The present invention relates to a lens barrel for controlling the energization time for driving the light quantity adjusting member to be longer than the energization time for driving the light quantity adjusting member for generating the first image.
Further, the present invention is a camera to which the above lens barrel can be attached, wherein the camera side communication unit is connected to the communication unit in the lens barrel to perform communication, and the lens mirror is provided via the camera side communication unit. And a camera control unit that transmits the continuous shooting information to a control unit of a cylinder.

According to the present invention, it is possible to provide a lens barrel and a camera capable of rapidly driving a diaphragm mechanism and improving a continuous shooting speed.

It is a figure which shows notionally the camera comprised by equipping the camera main body with the lens barrel which is one Embodiment of this invention. 7 is a timing chart of the operation of the camera during continuous shooting. 7 is a timing chart of the operation of the camera during continuous shooting. 6 is a main flowchart of drive control of a diaphragm motor unit by a lens microcomputer. 6 is a flowchart of a normal control of a diaphragm motor unit by a lens microcomputer. 6 is a flowchart of continuous shooting initial control in high-speed drive control for the aperture motor unit 2 by the lens microcomputer. 7 is a flowchart of continuous shooting continuation control in high-speed drive control of a diaphragm motor unit by a lens microcomputer.

An embodiment of the present invention will be described below with reference to the drawings and the like.
FIG. 1 is a diagram conceptually showing a camera configured by mounting a lens barrel 20 which is an embodiment of the present invention on a camera body 10.
The camera 1 includes a camera body 10 and a lens barrel 20 that is attachable to and detachable from the camera body 10.

In the state where the lens barrel 20 is coupled to the camera body 10, the contact 19 of the camera body 10 contacts the contact 29 of the lens barrel 20 so as to be able to conduct electricity, and the camera microcomputer 18 of the camera body 10 and the power source (not shown) The lens microcomputer 26 is connected to the lens microcomputer 26 described later.
As a result, power can be supplied from the camera body 10 to the lens barrel 20, and control information is communicated between the camera microcomputer 18 of the camera body 10 and the lens microcomputer 26 of the lens barrel 20. The lens barrel 20 can be controlled by the camera microcomputer 18 of the camera body 10 via the lens microcomputer 26.
The information transmitted from the camera microcomputer 18 to the lens microcomputer 26 of the lens barrel 20 includes the setting information relating to the continuous shooting mode and the operation information of the release button 17, and these information are set by the lens microcomputer 26 described later. It is used as control information for high-speed drive control of the motor unit 24.

The camera body 10 is a so-called digital single-lens reflex camera, and includes an image pickup device 11 that converts an optical image into an electric signal, a finder optical system 12, a mirror mechanism 13 including a quick return mirror 13M, and a shutter that defines an exposure time. A mechanism 14, a photometric unit 15, a distance measuring unit 16, a release button 17 for instructing shooting, a camera microcomputer 18 for integrally controlling the camera 1 including the camera body 10 and a lens barrel 20 described later. Has been done. The present invention is not limited to the digital single lens reflex camera.

In the mirror mechanism 13, the quick return mirror 13M guides the subject image light condensed by the lens barrel 20 to the finder optical system 12 in the photographing standby state shown in FIG. 1, and the quick return mirror 13M shutters the subject image light during photographing. It swings to a retracted position where it can enter the mechanism 14 and the image sensor 11.
The photometric unit 15 detects the light amount of the subject image light that has entered the finder optical system 12, and outputs the detected value to the camera microcomputer 18.

The distance measuring unit 16 is a distance measuring unit for auto focus, and detects the amount of defocus to the subject by a phase difference detection method, for example, and outputs the detected value to the camera microcomputer 18.
The release button 17 has a two-stage structure of half-push and full-push. The half-push command commands photometry and AF, and the full-press command shoots.

Then, the camera body 10 is controlled by the camera microcomputer 18 when the release button 17 is pressed by the user, and performs the shooting operation from the shooting standby state shown in FIG. 1 as described below.
In the standby state shown in FIG. 1, the quick return mirror 13M in the mirror mechanism 13 guides the subject image light condensed by the lens barrel 20 to the finder optical system 12.

When the release button 17 is half-pressed from the shooting standby state, the camera microcomputer 18 determines the shutter speed and the aperture value based on the detection result by the photometry unit 15, and detects the detection value input from the distance measurement unit 16. Based on the above, the lens microcomputer 26 of the lens barrel 20 to be described later is instructed to drive the AF unit 22 to bring it into a focused state. At this time, the camera microcomputer 18 opens the diaphragm blade 23 of the lens barrel 20.

When the release button 17 is fully pressed, the camera microcomputer 18 commands the lens microcomputer 26 of the lens barrel 20 described later to drive the diaphragm blades 23 to the determined diaphragm value, and then the mirror mechanism 13 The quick return mirror 13M is moved to the retracted position (mirror up), the shutter mechanism 14 is opened and closed to expose the image pickup device 11 with the image light of the subject for a predetermined time, and the image pickup device 11 converts the image light of the subject into an electric signal for imaging. To do.
Then, the camera microcomputer 18 performs image processing on the imaged data from the image pickup device 11 and records it in a recording unit (not shown). After the photographing is completed, the camera microcomputer 18 returns the quick return mirror 13M in the mirror mechanism 13 and instructs the lens microcomputer 26 of the lens barrel 20 to return the aperture blades 23 to the open state.

Next, the lens barrel 20 will be described.
The lens barrel 20 includes a plurality of lens groups 21 including a focusing lens 21F forming an imaging optical system, an AF unit 22 having a drive mechanism for moving the focusing lens 21F in the optical axis OA direction, and a camera body. A diaphragm blade 23 that adjusts the amount of light incident on the diaphragm 10, a diaphragm motor unit 24 that drives the diaphragm blade 23 with a stepping motor, an EEPROM 25 that stores various information about the lens barrel 20, and all of the lens barrel 20. The lens microcomputer 26, which is a circuit that controls the control.

The lens microcomputer 26 includes a CPU, a timer 26T, a memory 21M and the like. The lens microcomputer 26 is connected to the camera microcomputer 18 of the camera body 10 by the contact 29 of the lens barrel 20 coming into contact with the contact 19 of the camera body 10, and communicates control information with the camera microcomputer 18.

Then, the lens microcomputer 26 transmits the unique information about the lens barrel 20 stored in the EEPROM 25 as control information to the camera microcomputer 18, and based on a command from the camera microcomputer 18, each functional unit of the lens barrel 20. To control. For example, the lens microcomputer 26 drives and stops the focusing lens 21F via the AF unit 22 based on an instruction from the camera microcomputer 18 during AF operation. Further, during photography, the diaphragm motor unit 24 drives the diaphragm blades 23 to a predetermined diaphragm value.

Here, when the camera body 10 is set to the continuous shooting mode, the lens microcomputer 26 according to the present embodiment causes the diaphragm motor unit 24 that drives the diaphragm blades 23 based on the command information from the camera body 10. In contrast, high speed drive control is performed.
This high-speed drive control is for energizing (pre-excitation) for initial positioning before driving the diaphragm motor unit 24 and for suppressing vibrations at the time of stop based on the setting information relating to the continuous shooting mode and the operation information of the release button 17. The lens microcomputer 26 uniquely controls the timing of the energization (post-excitation) of the lens microcomputer 26 so that the diaphragm motor unit 24 can be quickly driven.

Next, high-speed drive control for the diaphragm motor unit 24 will be described with reference to FIGS.
2 and 3 are timing charts of the operation of the camera 1 during continuous shooting.
FIG. 4 is a main flowchart of drive control of the diaphragm motor unit 24 by the lens microcomputer 26.
FIG. 5 is a flowchart of normal control of the diaphragm motor unit 24 by the lens microcomputer 26.
FIG. 6 is a flowchart of the continuous shooting initial control in the high-speed drive control of the diaphragm motor unit 24 by the lens microcomputer 26.
FIG. 7 is a flowchart of continuous shooting continuous control in the high-speed drive control for the diaphragm motor unit 24 by the lens microcomputer 26.
In the drawings and the following description, “step” is also abbreviated as “S”. See FIG. 1 for the reference numerals of the components.

First, drive control of the diaphragm motor unit 24 by the lens microcomputer 26 will be described with reference to the main flowchart shown in FIG.
The lens microcomputer 26 first reads the continuous shooting setting (single shooting mode or continuous shooting mode) in the camera body 10 from the camera microcomputer 18 in the camera body (S401).

Then, it is determined whether or not the setting in the camera body 10 is the continuous shooting mode (S402).
When it is determined in step 402 that the setting is not the continuous shooting mode (No), normal control (detailed later) is performed as the single shooting mode (S403).

On the other hand, if it is determined in step 402 that the setting is the continuous shooting mode (Yes), the continuous shooting initial control is performed (S404).
The first control during continuous shooting will be described in detail later, but corresponds to shooting the first image during continuous shooting, measures exposure time information for continuous shooting continuous control described below, and The control is such that the post-excitation is continued without ending when the diaphragm is opened for the second shooting. As a result, when a narrowing-down command is received from the camera body 10 at the time of shooting the second image, the narrowing-down drive can be performed quickly.

After that, it is determined whether the continuous shooting command is continued (the release button 17 is continuously pressed) (S405), and when it is determined that the continuous shooting command is not continued (No),
The post-excitation when the aperture of the second image is opened is ended (S406), and the process returns to the initial control during continuous shooting in step 404.

When it is determined in step 405 that the continuous shooting command is continued (Yes), continuous shooting continuation control is executed (S407), and the continuous shooting command is continued (the release button 17 is continuously pressed). (S408), and if it is determined that the continuous shooting command continues (Yes), the continuous shooting continuation control is repeated.

The continuous shooting continuation control will be described in detail later, but based on the exposure time information acquired in the initial control during continuous shooting, the aperture opening command timing from the camera body 10 associated with the end of the exposure of the second image is predicted and the aperture is not opened. This is a control to start excitation.
The exposure time information is sequentially updated during the continuous shooting continuous control. As a result, when the aperture open command is received from the camera body 10 for photometry and distance measurement for the next shooting, the aperture open drive can be performed quickly.

If it is determined in step 408 that the continuous shooting command has not been continued (Yes), the post-excitation when the diaphragm is open is ended (S406), and the process returns to step 404, the first control during continuous shooting.

Next, with reference to the timing charts of the operation of the camera 1 shown in FIGS. 2 and 3, the normal control of the diaphragm motor unit 24 by the lens microcomputer 26 will be described along the flowchart shown in FIG. Although FIG. 2 and FIG. 3 are continuous in time, the items of AF photometry, AF drive, and mirror shown in FIG. 2 are omitted in FIG. The display items of are also different.

The normal control is a sequential control as described below, and the timing chart shown in the bottom of FIG. 2 corresponds to this.
Step 501: A narrowing-down command is input from the camera body 10. As shown in FIG. 2, this narrowing-down command is issued on condition that the release button 17 is fully pressed and AF photometry detection and AF distance measurement detection are completed.
Step 502: Start preexcitation for narrowing down, and execute for a predetermined time: T1.
Step 503: After the excitation before the narrowing is completed, the narrowing drive is executed.

Step 504: After the narrowing down is completed, the narrowing down completion information is transmitted to the camera body 10. Thus, in the camera body 10, as shown in FIG. 2, the quick return mirror 13M in the mirror mechanism 13 starts retracting (mirror up), and when the retracting of the quick return mirror 13M is completed, an image is taken (the shutter mechanism 14 is opened). Exposure to the image sensor 11 and reading of the image light of the subject).
Step 505: Start excitation after narrowing down, execute T2 for a predetermined time, and stop excitation (energization).

Step 506: A diaphragm opening command is input from the camera body 10. The aperture opening command is issued at the exposure end timing, as shown in FIG. Further, in the camera body 10, the return of the quick return mirror 13M (mirror down) is started at the same time.
Step 507: Start pre-excitation for opening the aperture, and execute for a predetermined time: T1.
Step 508: After the excitation before the aperture opening is completed, the aperture opening drive is executed.

Step 509: After the aperture opening is completed, the aperture opening completion information is transmitted to the camera body 10. As a result, in the camera body 10, as shown in FIG. 2, it is possible to start the AF photometry detection and the AF distance measurement detection of the second sheet.
Step 510: Start excitation after opening the diaphragm, perform T2 for a predetermined time, and stop excitation (energization).

In FIG. 2, the shooting operation for the second image is continuously performed. However, in this flowchart, the single shooting corresponds, and thus the control ends. Even in the continuous shooting mode, this normal control may be continuously performed if a high continuous shooting speed is not required.

Next, referring to the timing charts of the operation of the camera 1 shown in FIGS. 2 and 3, the initial control during continuous shooting for the diaphragm motor unit 24 by the lens microcomputer 26 will be described according to the flowchart shown in FIG.
The initial control during continuous shooting is a control in which measurement of exposure time information for continuous shooting continuous control is added to the above-described normal control and the post-excitation is not terminated when the diaphragm is opened after shooting.

Step 601: A narrowing-down command is input from the camera body 10. As shown in FIG. 2, this narrowing-down command is issued on condition that the release button 17 is fully pressed and AF photometry detection and AF distance measurement detection are completed.
Step 602: Start pre-excitation for narrowing down and execute for a predetermined time: T1.
Step 603: After the excitation before the narrowing is completed, the narrowing driving is executed.

Step 604: After the narrowing down is completed, the narrowing down completion information is transmitted to the camera body 10. As a result, in the camera body 10, as shown in FIG. 2, the quick return mirror 13M starts the retracting movement (mirror up), and when the retracting is completed, an image is taken (exposure to the image sensor 11 by opening the shutter mechanism, a subject image). Light reading) is started.
Step 605: The timer 26T is reset (T=0) and the time counting is started.
Step 606: Start excitation after narrowing down, execute T2 for a predetermined time, and stop excitation (energization).

Step 607: A diaphragm opening command is input from the camera body 10. The aperture opening command is issued at the exposure end timing, as shown in FIG. Further, in the camera body 10, the return of the quick return mirror 13M (mirror down) is started at the same time.
Step 608: The time T3 measured by the timer 26T until the aperture opening command is input is stored in the memory 26M. Although the measurement time at this time does not exactly match the exposure time, it serves as exposure time information for predicting the exposure end (that is, opening the aperture) timing for the second sheet and starting the pre-excitation.

Step 609: Start pre-excitation for opening the aperture, and execute for a predetermined time: T1.
Step 610: After the excitation before the aperture opening is completed, the aperture opening drive is executed.
Step 611: After the aperture opening is completed, the aperture opening completion information is transmitted to the camera body 10. In the camera body 10, this aperture opening completion information serves as a start trigger for the second AF photometry detection and AF distance measurement detection in the camera body 10.
Step 612: Start excitation after opening the diaphragm.

In the above-described initial control during continuous shooting, the post-excitation when the aperture is opened after the first image is shot is continued without being terminated. As a result, it is possible to perform the focusing drive immediately upon receiving the focusing command from the camera body 10 at the time of the exposure of the second sheet, and to perform the pre-excitation in comparison with the case where the pre-excitation is started after receiving the focusing command. It is possible to accelerate the completion of narrowing down by the required time (T1) (time in FIG. 2: Ft).
Considering only the excitation factor of the aperture motor unit 24, the duration of opening the aperture can be shortened to the time when the post-excitation of the aperture opening and the pre-excitation of the aperture opening overlap.
For example, when 20 μs is required for the pre-excitation (T1) and 10 μs is required for the post-excitation (T2), they can be combined to be 20 μs. Note that the aperture opening time shown in FIG. 2 is such that pre-excitation T1 and post-excitation T2 are substantially continuous in series.

Next, with reference to the timing chart of the operation of the camera 1 shown in FIG. 3, the continuous shooting continuous control for the diaphragm motor unit 24 by the lens microcomputer 26 will be described along the flowchart shown in FIG.
In the continuous shooting continuation control, the measurement time T3 in the above-described first continuous shooting control is used as the exposure time information, and the end of exposure (that is, aperture opening) for the second sheet is predicted as the same timing.
In continuous shooting, it is considered rare that the brightness of the subject suddenly changes significantly, so the start of pre-excitation may be performed based on this predicted exposure end timing, but here the normal pre-excitation time is used. : T1 is set twice as much as T1 (T1×2) before, so that an error in exposure time information and a change in exposure time can be dealt with.

Step 701: A narrowing-down command is input from the camera body 10. As shown in FIG. 2, this narrowing-down command is issued on condition that the release button 17 is fully pressed and AF photometry detection and AF distance measurement detection are completed. Although not shown in FIG. 3, the quick return mirror 13M in the camera body 10 is already in the retracted (mirror up) state.
Step 702: The narrowing drive is executed. Since the excitation (energization) is continued from the above-described initial control during continuous shooting, which precedes this control, pre-excitation for narrowing down is unnecessary.
Step 704: The timer 26T is reset (T=0) and the time counting is started. This is for updating the exposure time information for the next shooting.

Step 705: Start excitation after narrowing down.
Step 706: The exposure time information: T3 stored in the memory 26M and the value obtained by adding the post-excitation time: T2 to twice the pre-excitation time: T1 (2×T1) are compared and judged.
That is, it is determined that T3>2×T1+T2.
This is to judge whether or not there is a margin for stopping the excitation when starting the pre-excitation before the excitation time: twice the pre-excitation time: T1 (T1×2) with respect to the predicted exposure end timing (in the case of No, Excitation is continued).

If it is determined No in step 706, this control is terminated while continuing the post-excitation, and if it is determined yes, the process proceeds to step 707.
Step 707: After the narrowing down, the excitation is finished.
Step 708: Judge T3=2×T1+T2, and if Yes, go to Step 709. This is a determination to start pre-excitation before the pre-excitation time: T1 twice (T1×2) with respect to the predicted exposure end timing.

Step 709: Start pre-excitation for opening the diaphragm.
Step 710: A diaphragm opening command is input from the camera body 10. This aperture opening command is issued at the exposure end timing, as shown in FIG. Further, in the camera body 10, although not shown in FIG. 3, the return of the quick return mirror 13M (mirror down) is started at the same time.

Step 711: Update the time T3 measured by the timer 26T stored in the memory 26M. The updated measurement time serves as exposure time information for predicting the timing of ending exposure (that is, opening the aperture) in the next shooting and starting pre-excitation.
Step 712: The aperture open drive is executed. Since the pre-excitation is started in step 709, it can be executed immediately.
Step 713: After the aperture opening is completed, the aperture opening completion information is transmitted to the camera body 10.
Step 714: Start the excitation after opening the diaphragm.

The continuous shooting continuation control predicts the exposure end timing (equal to the aperture opening command timing from the camera body 10) at the time of shooting based on the exposure time information measured at the time of the previous shooting (including the first shot). And start pre-excitation. As a result, the aperture open command can be immediately performed upon receiving the aperture open command from the camera body 10, and as compared with the case where pre-excitation is started after receiving the aperture open command, from the completion of the aperture stop to the aperture open drive start. The time required for pre-excitation can be shortened by T1 minutes.
In FIG. 3, the time required from the completion of the aperture stop to the start of the aperture open drive is Wtn (=Wt−T1) which is shortened with respect to the time Wt in the comparative example shown at the bottom of FIG.

Further, similar to the above-described first control during continuous shooting, the post-excitation during the aperture open drive after shooting is continued without being terminated, and immediately after receiving a narrowing command from the camera body 10 at the time of exposure for the next shooting. Narrowing drive is possible, and this shortens the time required to complete the narrowing down.

According to the high-speed drive control for the diaphragm motor unit 24 as described above, it is possible to quickly perform the diaphragm narrowing drive from the diaphragm open during continuous shooting, and also it is possible to quickly perform the diaphragm open drive after the exposure. As a result, compared with the case where the normal control shown at the bottom of FIG. 3 is continuously performed, the exposure in the second shooting can be advanced by the time: St2 (equal to the time: Ft shown in FIG. 2). At the same time, the exposure of the third image can be advanced by time: St3 (=St2+T1). As a result, the continuous shooting speed can be improved.

As described above, the present embodiment has the following effects.
(1) According to the present embodiment, the lens microcomputer 26 in the lens barrel 20 controls the aperture motor unit 24 based on the setting information relating to the continuous shooting mode from the camera body 10 and the operation information of the release button 17. High-speed drive control is performed independently for the timing of energization (pre-excitation) for initial positioning before driving and energization (post-excitation) for vibration suppression at stop. As a result, the diaphragm motor unit 24 (diaphragm blades 23) can be driven quickly without depending on the control of the camera body 10, and the continuous shooting speed can be improved.

(2) According to the high-speed drive control of the aperture motor unit 24 by the lens microcomputer 26 in the lens barrel 20 of the present embodiment, the aperture of the nth (including the first) photometering after shooting and the aperture opening for distance measurement are opened. By not ending the post-excitation, it is possible to immediately perform the aperture driving upon receiving the aperture narrowing command from the camera body 10 at the time of the exposure of the (n+1)th sheet. As a result, it becomes possible to accelerate the completion of the narrowing down as compared with the case where the pre-excitation is started after receiving the narrowing down command, and as a result, the continuous shooting speed can be improved.

(3) Further, at the time of shooting the nth image, the pre-opening excitation is started by predicting the aperture opening timing at the end of exposure based on the exposure time information acquired at the time of shooting the (n-1)th image. As a result, the aperture opening drive can be performed immediately upon receiving the aperture opening command from the camera body 10, and compared with the case where the pre-excitation is started after receiving the aperture opening command, from the completion of the aperture down to the start of the aperture open. You can save time. As a result, the continuous shooting speed can be improved.

(Variation)
As described above, the present invention is not limited to the embodiment described above, and various modifications and changes as described below are possible, and these are also within the scope of the present invention.
(1) In the present embodiment, the present invention is applied to the camera 1 having two modes of single shooting and continuous shooting, but the shooting mode is not limited to this. For example, the continuous shooting mode may be provided with two modes of high-speed continuous shooting and low-speed continuous shooting, and the present invention may be applied only to the high-speed continuous shooting. Further, not only the setting but also the application of the high speed drive control may be manually settable.

Further, the power saving mode may be provided so that the present invention is not applied in the power saving mode, or the application of the present invention is switched depending on the battery remaining amount (not applied when the battery remaining amount is very small). Alternatively, the present invention may not be applied at a low temperature when the battery capacity decreases.

(2) In the above embodiment, the present invention is applied to a configuration in which the diaphragm blade is driven by a stepping motor. However, the present invention is not limited to stepping motors, but can be applied to other configurations using a drive unit that requires excitation prior to driving.
It should be noted that the embodiments and the modified embodiments may be appropriately combined and used, but detailed description thereof will be omitted. Further, the present invention is not limited to the embodiments described above.

1: camera, 10: camera body, 18: camera microcomputer, 19: contact, 20: lens barrel, 23: diaphragm blade, 24: diaphragm motor unit, 26: lens microcomputer 26T: timer, 29: contact

Claims (5)

A lens barrel attached to the camera body,
A light amount adjusting member capable of adjusting the amount of light incident on the camera body,
A drive unit that drives the light amount adjusting member using electromagnetic force;
A control unit for controlling energization to the drive unit,
When the camera body continuously captures images and generates at least two or more images, the control unit controls an energization time for driving the light amount adjusting member related to generation of the second and subsequent images. A lens barrel that is controlled to be longer than an energization time for driving the light amount adjustment member for generating the first image. The lens barrel according to claim 1, wherein
A communication unit that is connected to the camera body to perform communication,
The communication unit is a lens barrel that receives continuous shooting information from the camera body. The lens barrel according to claim 2, wherein
The lens barrel which is the continuous shooting mode information set in the camera body. The lens barrel according to claim 2 or 3, wherein
The continuous shooting information is a lens barrel that is continuation information of a shooting command. A camera to which the lens barrel according to any one of claims 2 to 4 can be attached,
A camera-side communication unit that is connected to a communication unit in the lens barrel to perform communication, and a camera control unit that transmits the continuous shooting information to the control unit of the lens barrel via the camera-side communication unit. camera.

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