JP2009222731A - Imaging apparatus - Google Patents

Abstract

An imaging apparatus capable of determining the presence of an aperture ring in an interchangeable lens and setting an optimum setting menu in a single-lens reflex digital camera.
Disclosed is a discriminating means for discriminating whether or not a first aperture value setting means is mounted on an interchangeable lens, and a third that can set either an aperture value of the interchangeable lens or a setting value other than the aperture value. An aperture value setting unit and a command unit that sends a command to the aperture drive control unit to drive the aperture unit of the interchangeable lens based on the aperture value set by the third aperture value setting unit. If it is determined that the first aperture value setting unit is not mounted, the third aperture value setting unit is set in a state in which the aperture value can be set, and the first aperture value setting unit is mounted on the interchangeable lens. If it is determined that the aperture value is determined, the third aperture value setting means is set to a state in which a value other than the aperture value can be set.
[Selection] Figure 11

Description

  The present invention relates to an imaging apparatus, and more particularly to a single-lens reflex digital camera.

  In recent years, single-lens reflex digital cameras that can convert an optical image of a subject into an electrical image signal and output the signal are rapidly spreading. In this single-lens reflex digital camera, at the time of subject observation using a finder by a photographer or the like, the light incident on the photographing lens (that is, the subject image) is reflected by a reflecting mirror disposed on the photographing optical path after the lens. By changing the optical path and making a normal image through a pentaprism or the like and guiding it to the optical viewfinder, the subject image through the lens can be viewed from the optical viewfinder.

  Further, in order to easily change the exposure value at the time of shooting, an operation member for setting a shutter speed or an aperture value is mounted on the digital camera body or the interchangeable lens.

For example, Patent Document 1 discloses an interchangeable lens camera in which an operation dial for setting a shutter speed is mounted on a camera body and an operation ring for setting an aperture value is mounted on an interchangeable lens.
JP 7-311398 A

  However, in a conventional single-lens reflex camera, for an interchangeable lens equipped with an aperture ring, it is possible to set the aperture value with the interchangeable lens, but an interchangeable lens not equipped with an aperture ring. When the is attached, the aperture value cannot be set, making it difficult to use.

  Therefore, an object of the present invention is to provide a single-lens reflex digital camera that can easily set an aperture value regardless of whether or not an aperture ring is mounted on an interchangeable lens.

  The present invention relates to an imaging optical system, an aperture unit for setting an aperture value of the imaging optical system, aperture drive control means for driving and controlling the aperture unit, and a first aperture value setting for manually setting the aperture value of the aperture unit. And an interchangeable lens mounting device that can be attached to and detached from the image pickup apparatus, wherein the interchangeable lens includes a first aperture value setting unit that determines whether or not the first aperture value setting unit is mounted. 2 aperture value setting means, and command means for sending a command to the aperture drive control means to drive the aperture unit of the interchangeable lens based on the aperture value set by the second aperture value setting means. If it is determined that the first aperture value setting means is not mounted on the lens, the second aperture value setting means is made operable, and the first aperture value setting means is mounted on the interchangeable lens. Determine If it is an image pickup apparatus characterized in that it inoperable the second aperture setting means.

  Furthermore, the present invention provides an imaging optical system, an aperture unit for setting an aperture value of the imaging optical system, aperture drive control means for driving and controlling the aperture unit, and a first aperture value for manually setting the aperture value of the aperture unit. An image pickup apparatus in which an interchangeable lens equipped with a setting means is detachable, a discrimination means for discriminating whether or not the first aperture value setting means is mounted on the interchangeable lens, and an aperture value or aperture value of the interchangeable lens A third aperture value setting means capable of setting any one of the set values other than the aperture value, and an aperture drive control means for driving the aperture unit of the interchangeable lens based on the aperture value set by the third aperture value setting means. Command means for sending a command to the interchangeable lens, when it is determined that the first aperture value setting means is not mounted on the interchangeable lens, the third aperture value setting means is in a state in which the aperture value can be set. age, When it is determined that the first aperture value setting unit is mounted on the interchangeable lens, the third aperture value setting unit is set in a state in which a value other than the aperture value can be set. An imaging device.

  According to the present invention described above, in a single-lens reflex digital camera, it is possible to determine whether or not an interchangeable lens is equipped with an aperture ring on the camera body. Since it becomes possible to optimize, the exposure value at the time of imaging | photography can be easily changed with an interchangeable lens or a camera main body.

(Embodiment)
An imaging apparatus according to an embodiment of the present invention will be described.

  The digital camera shown in FIG. 1 is an interchangeable lens type single-lens reflex digital camera 1. The interchangeable lens 2 has a lens mount 21 and is detachably attached to a body mount 23 provided on the front surface of the digital camera 1 body. The subject light that has passed through the interchangeable lens 2 is divided into two light beams by the main mirror 4 a of the quick return mirror 4, and the reflected light beam is guided to the finder optical system 19. On the other hand, the transmitted light beam is reflected by the sub-mirror 4 b provided on the back side of the quick return mirror 4 and used as the AF light beam of the focus detection unit 5. The focus detection unit 5 generally uses a phase difference detection method.

  The light beam reflected by the main mirror 4 a forms an image on the finder screen 6. The subject image formed on the finder screen 6 can be observed from the finder eyepiece window 9 via the pentaprism 7 and the eyepiece lens 8.

  The digital camera 1 has two shooting modes. The first is a viewfinder shooting mode in which a photographer or the like takes a picture while observing the viewfinder eyepiece window 9, and is a normal shooting mode in a conventional single-lens reflex camera.

  In this finder photographing mode, as shown in FIG. 2, since the quick return mirror 4 is disposed at a predetermined position in the optical path X, a photographer or the like can observe a subject image from the finder eyepiece window 9. it can. At the time of actual photographing, the quick return mirror 4 is flipped up outside the optical path X, and the shutter unit 10 is opened to form a subject image on the imaging surface of the imaging sensor 11.

  On the other hand, in the second monitor photographing mode, the quick return mirror 4 is retracted from the optical path X as shown in FIG. Therefore, an image of the subject, that is, a so-called through image is displayed on the display monitor 16 such as a liquid crystal monitor via the imaging sensor 11.

  A body microcomputer 12 that controls various sequences is mounted in the digital camera 1. The image sensor control unit 13 performs drive control of the image sensor 11. The shutter control unit 14 performs drive control of the shutter unit 10. The image display control unit 15 for image display reads image data from the imaging sensor 11 and controls to display a captured image on the display monitor 16 after predetermined image processing. In addition, the image recording control unit 17 reads and writes captured images from a recording medium such as an SD card (not shown) via the image reading / recording unit 18.

  The detachable interchangeable lens 2 has an imaging optical system L for connecting a subject image to the imaging sensor 11 in the digital camera 1. Further, a lens microcomputer 20 that controls various sequences in the interchangeable lens 2 and incorporates various lens information is mounted. A focus control unit 26 that drives and controls the focus lens group 25 is mounted in the interchangeable lens 2. Further, an aperture control unit 27 that controls the aperture unit 28 is mounted.

  Further, the digital camera 1 and the interchangeable lens 2 are respectively provided with an electrical section 22 (not shown) of the lens mount 21 on the side of the interchangeable lens 2 and an electrical section 24 (not shown) of the body mount 23 on the digital camera 1 side. Communication) of various control signals is performed.

  FIG. 4 is a top view of the digital camera 1 to which the interchangeable lens 2 according to the embodiment of the present invention is attached.

  The main body of the digital camera 1 is a housing that is supported by a photographer or the like when photographing a subject. The digital camera 1 includes a release button 30 and a shutter speed setting dial 31. The release button 30 and the shutter speed setting dial 31 are provided on the right side of the upper surface of the digital camera body 1.

  The shutter speed setting dial 31 is an operation member that sets the shutter speed by rotating. The shutter speed setting dial 31 has an auto position where the shutter speed is automatically set.

  The main body of the digital camera 1 includes a display monitor 16. The display monitor 16 is provided on the surface of the digital camera 1 main body on the photographer side. The operation of the display monitor 16 will be described later.

  The interchangeable lens 2 has a filter mount 37 on the most object side. The interchangeable lens 2 includes a zoom ring 38, a focus ring 39, and an aperture ring 40 in order from the filter mount 37 toward the digital camera 1 main body side (the negative direction of the Z axis). The zoom ring 38, the focus ring 39, and the aperture ring 40 are all cylindrical rotational operation members, and are arranged on the outer peripheral surface of the interchangeable lens 2 so as to be rotatable.

  FIG. 5 is a rear view of the digital camera 1 according to Embodiment 1 of the present invention. The main body of the digital camera 1 includes a power button 70, a shooting / playback mode switching lever 71, a MENU button 72, a cross operation key 73, a SET button 74, a narrowing mode button 76, a function button (1) 77, and a function button (2) 78. Including.

  The power button 70 is an operation member for turning on / off the power of the digital camera 1. The shooting / playback mode switching lever 71 is an operation member that switches between the shooting mode and the playback mode by switching the lever. Here, the shooting mode is a mode set in the digital camera 1 in order to newly shoot a subject to form an image signal. The playback mode is a mode that is set in the digital camera 1 to display an image signal that has already been taken and stored.

  The MENU button 72 is an operation member for causing the display monitor 16 to display various operation menus. The cross operation key 73 has up, down, left and right arrow keys and is an operation member for selecting display items of various operation menus. The SET button 74 is an operation member for confirming display items of various operation menus. The narrow-down mode button 76 shifts to a narrow-down mode to be described later by pressing this button. The function button (1) 77 and the function button (2) 78 are assigned frequently used shooting / playback menus.

  The aperture ring 40 has a cylindrical shape. 6A is a development view of the outer peripheral surface of the aperture ring according to the embodiment of the present invention, and FIG. 6B is a development view of the inner peripheral surface of the aperture ring according to the embodiment of the present invention. .

  4 and 6A, the aperture ring 40 displays the aperture value on the outer peripheral surface. The aperture value display area is divided into two areas. In FIG. 6A, the display portion for each AV from [2] to [11] corresponds to the manual area. In FIG. 6A, the display portion [A] corresponds to the auto area. 4 and 6B, the aperture ring 40 has a straight cam groove 42 on the inner peripheral surface.

  In addition, the interchangeable lens 2 has a diaphragm unit 28 therein. The aperture unit 28 includes an aperture drive motor 28b for driving an aperture blade 28a (not shown). The aperture drive motor 28b drives the aperture blades 28a according to the rotation angle of the aperture ring 40 under the control described later. By driving the aperture blade 28a, the aperture value of the photographing optical system L is changed.

  FIG. 7 is a cross-sectional view showing the coupling of the diaphragm ring and the diaphragm linear sensor according to the embodiment of the present invention. The aperture linear sensor 41 includes a cylindrical slider 41a protruding in the outer peripheral direction. The cam groove 42 formed in the aperture ring 40 is coupled to the slider 41 a of the aperture linear sensor 41.

  The circuit configuration of the aperture linear sensor 41 is a variable resistor as shown in FIG. 8A. When a predetermined voltage is applied between the terminals 1 and 3, a cylindrical slide provided on the aperture linear sensor 41 is provided. When the moving element 41a slides on a magnetic resistor (not shown), the output of the terminal 2 changes linearly as shown in FIG. 8B.

  FIG. 9 is a graph showing the relationship between the rotation angle of the aperture ring and the output value of the aperture linear sensor according to the embodiment of the present invention. 4 and 6, when the character [2] displayed on the aperture ring 40 is positioned at an angle that coincides with the index 33, the slider 41 a of the aperture linear sensor 41 is moved to P on the cam groove 42. In position. In that case, the output value of the aperture linear sensor 41 is P ′.

  When the character [2.8] displayed on the aperture ring 40 is positioned at an angle that matches the index 33, the slider 41a of the aperture linear sensor 41 is at the position Q on the cam groove 42. In that case, the output value of the aperture linear sensor 41 is Q '. Similarly, when the character [4] displayed on the aperture ring 40 is positioned at an angle that coincides with the index 33, the slider 41a of the aperture linear sensor 41 is at the position R on the cam groove 42. In that case, the output value of the aperture linear sensor 41 is R ′. Similarly, when the character [5.6] displayed on the aperture ring 40 is positioned at an angle that coincides with the index 33, the slider 41a of the aperture linear sensor 41 is at the position S on the cam groove 42. is there. In that case, the output value of the aperture linear sensor 41 is S ′. Similarly, when the character [8] displayed on the aperture ring 40 is positioned at an angle that coincides with the index 33, the slider 41a of the aperture linear sensor 41 is at the position T on the cam groove 42. In that case, the output value of the aperture linear sensor 41 is T ′. Similarly, when the character [11] displayed on the aperture ring 40 is positioned at an angle that coincides with the index 33, the slider 41a of the aperture linear sensor 41 is at the position U on the cam groove 42. In that case, the output value of the aperture linear sensor 41 is U '. Similarly, when the letter [A] displayed on the aperture ring 40 is positioned at an angle that matches the index 33, the slider 41a of the aperture linear sensor 41 is at the position V on the cam groove 42. In that case, the output value of the aperture linear sensor 41 is V ′.

  As described above, the aperture linear sensor 41 indicates an output corresponding to the rotation angle of the aperture ring 40 on a one-to-one basis. Therefore, the rotation angle of the aperture ring 40 can be detected. The aperture linear sensor 41 outputs an aperture value signal corresponding to the rotation angle as a voltage change.

  FIG. 10 is a block diagram showing a control system of the digital camera 1 according to the embodiment of the present invention.

  The body microcomputer 12 includes a release button 30, a shutter speed setting dial 31, a shooting / playback mode switching lever 71, a MENU button 72, a cross operation key 73, a SET button 74, a shooting mode switching button 75, and a narrowing down. Signals can be received from the mode button 76, the function button (1) 77, and the function button (2) 78. The body microcomputer 12 can transmit signals to the shutter control unit 14 and the quick return mirror control unit 43. Further, the body microcomputer 12 can communicate signals with each other among the image recording control unit 17, the image display control unit 15, and the digital signal processing unit 53. The body microcomputer 12 has a memory 68 for storing signals.

  The shutter control unit 14 drives a shutter drive motor 10 a (not shown) based on a control signal from the body microcomputer 12. The quick return mirror control unit 43 drives the quick return mirror drive motor 44 based on a control signal from the body microcomputer 12.

  The release button 30 transmits the shutter timing to the body microcomputer 12. The shutter speed setting dial 31 transmits the set shutter speed information and shutter mode information.

  The imaging sensor 11 is a CCD (Charge Coupled Device) or the like. The imaging sensor 11 converts an optical image formed by the imaging optical system L of the interchangeable lens 2 into an electrical image signal. The imaging sensor 11 is driven and controlled by the imaging sensor control unit 13. The image signal output from the image sensor 11 is processed in the order of the analog signal processing unit 51, the A / D conversion unit 52, the digital signal processing unit 53, the buffer memory 54, and the image compression unit 56.

  The image signal is transmitted from the imaging sensor 11 to the analog signal processing unit 51. The analog signal processing unit 51 performs analog signal processing such as gamma processing on the image signal output from the imaging sensor 11. The image signal is transmitted from the analog signal processing unit 51 to the A / D conversion unit 52. The A / D conversion unit 52 converts the analog image signal output from the analog signal processing unit 51 into a digital signal.

  The image signal is transmitted from the A / D converter 52 to the digital signal processor 53. The digital signal processing unit 53 performs digital signal processing such as noise removal and edge enhancement of the image signal converted into a digital signal by the A / D conversion unit 52. The image signal is transmitted from the digital signal processing unit 53 to the buffer memory 54. The buffer memory 54 temporarily stores the image signal processed by the digital signal processing unit 53. The buffer memory 54 is a RAM (Random Access Memory).

  The image signal is transmitted from the buffer memory 54 to the image compression unit 56 in accordance with a command from the image recording control unit 17. The image compression unit 56 compresses the data of the image signal to a predetermined size in accordance with a command from the image recording control unit 17. The image signal is subjected to data compression at a predetermined ratio and has a smaller data size than the original data. For example, a JPEG (Joint Photographic Experts Group) method is used as this compression method.

  The compressed image signal is transmitted from the image compression unit 56 to the image reading / recording unit 18 and the display monitor 16. On the other hand, the body microcomputer 12 transmits a control signal to the image recording control unit 17 and the image display control unit 15. The image recording control unit 17 controls the image reading / recording unit 18 based on a control signal from the body microcomputer 12. The image display control unit 15 controls the display monitor 16 based on a control signal from the body microcomputer 12.

  The image reading / recording unit 18 records the image signal in the internal memory and / or the removable memory based on a command from the image recording control unit 17. The image reading / recording unit 18 records information to be stored together with the image signal in the internal memory and / or the removable memory based on a command from the image recording control unit 17. Information to be stored together with the image signal includes date and time when the image was captured, focal length information, shutter speed information, aperture value information, and shooting mode information.

  The display monitor 16 displays the image signal as a visible image based on a command from the image display control unit 15. The display monitor 16 displays information to be displayed together with the image signal based on a command from the image display control unit 15. Information to be displayed together with the image signal includes focal length information, shutter speed information, aperture value information, shooting mode information, in-focus state information, presence / absence of the aperture ring 40 of the interchangeable lens 2, aperture value setting step, setting width, etc. Including the display.

  The display monitor 16 displays a setting screen to be set by a photographer or the like in a predetermined shooting / playback mode based on a command from the image display control unit 15.

  When a photographer or the like takes a picture, the power button 70 is turned on, and the photography / playback mode switching lever 71 is set to the photography mode. As a result, the power source of the digital camera 1 is turned on, and the subject converted into an electrical image signal by the imaging sensor 11 is displayed on the display monitor 16 as a visible image based on a command from the image display control unit 15.

  When the photographer or the like presses the MENU button 72 while the digital camera 1 is in the shooting mode, the display monitor 16 is a setting item that can be changed by the photographer or the like in the shooting mode based on a command from the image display control unit 15. Displays a setting menu image that is iconified.

  FIG. 11 is a block diagram showing a control system in the interchangeable lens 2 according to the embodiment of the present invention.

  The lens microcomputer 20 can communicate signals with each other among the zoom control unit 62, the focus control unit 26, and the aperture control unit 27.

  The zoom control unit 62 can receive a signal from the zoom linear sensor 60 via the A / D conversion unit 61. The zoom control unit 62 converts the rotation amount of the zoom ring 38 detected by the zoom linear sensor 60 into focal length information of the photographing optical system L. The zoom control unit 62 transmits the focal length information to the lens microcomputer 20.

  The focus control unit 26 can receive a signal from the focus linear sensor 63 and can transmit a signal to the focus drive motor 65 via the A / D conversion unit 64. The focus control unit 26 determines the focus mode from the rotation angle of the focus ring 39 detected by the focus linear sensor 63 and digitized by the A / D conversion unit 64. The focus control unit 26 transmits the determined result to the lens microcomputer 20. The focus control unit 26 transmits object point distance information detected from the rotation angle of the focus ring 39 based on a command from the lens microcomputer 20 to the lens microcomputer 20. The focus control unit 26 drives the focus drive motor 65 based on a control signal from the lens microcomputer 20.

  The aperture control unit 27 can receive a signal from the aperture linear sensor 66, and can transmit a signal to the aperture drive motor 28 b via the A / D conversion unit 67. The aperture control unit 27 determines the aperture mode based on the rotation angle of the aperture ring 40 detected by the aperture linear sensor 66 and digitized by the A / D conversion unit 67. The aperture control unit 27 transmits the determined result to the lens microcomputer 20. The aperture control unit 27 transmits aperture value information detected from the rotation angle of the aperture ring 40 based on a command from the lens microcomputer 20 to the lens microcomputer 20. The aperture control unit 27 drives the aperture drive motor 28b based on a control signal from the lens microcomputer 20.

  The memory unit 69 in the lens microcomputer 20 stores various programs for each interchangeable lens 2 or data indicating the relationship between the focal length and the distance to the subject and the amount of movement of the focus lens group 25, whether the aperture ring 40 is mounted, Data such as an aperture value setting step and a setting width are stored.

  Next, the photographing operation of the digital camera 1 will be described. The imaging apparatus in this embodiment has two shooting modes.

  First, based on FIG. 2, a driving sequence in a finder photographing mode in which a photographer or the like takes a picture through the finder eyepiece window 9 will be described.

  When the photographer or the like presses the release button 30 halfway, power is supplied to the body microcomputer 12 and various units in the digital camera 1. The body microcomputer 12 in the digital camera 1 activated by power supply receives various lens data from the lens microcomputer 20 in the interchangeable lens 2 similarly activated by power supply via the lens mount 21 and the body mount 23 and incorporates them. Save in the memory 68. Next, the body microcomputer 12 acquires a defocus amount (hereinafter referred to as Df amount) from the focus detection unit 5 and instructs the lens microcomputer 20 to drive the focus lens group 25 by the Df amount. The lens microcomputer 20 controls the focus control unit 26 to operate the focus lens group 25 by the amount of Df. As described above, when the focus detection and the driving of the focus lens group 25 are repeated, the Df amount becomes small.

  After that, the body microcomputer 12 instructs the lens microcomputer 20 to make the aperture value calculated based on the output from the photometric sensor (not shown) by fully pressing the release button 30. Then, the lens microcomputer 20 controls the aperture controller 27 to narrow the aperture to the instructed aperture value. Simultaneously with the aperture value instruction, the body microcomputer 12 causes the quick return mirror control unit 43 to retract the quick return mirror 4 from the optical path X. After the retraction is completed, the image sensor control unit 13 instructs the image sensor 11 to drive and instructs the shutter unit 10 to operate. Note that the image sensor control unit 13 exposes the image sensor 11 for the time of the shutter speed calculated based on an output from a photometric sensor (not shown).

  After the exposure is completed, the image sensor control unit 13 reads out image data from the image sensor 11 and controls to display a captured image on the image display display monitor 16 after predetermined image processing, and the image reading / recording unit 18. The image data is written to the storage medium via Further, after the exposure is completed, the quick return mirror 4 and the shutter unit 10 are reset to the initial positions. The body microcomputer 12 instructs the lens microcomputer 20 to reset the aperture to the open position, and the lens microcomputer 20 issues a reset command to each unit. After the reset is completed, the lens microcomputer 20 informs the body microcomputer 12 of the reset completion. The body microcomputer 12 waits for the reset completion information from the lens microcomputer 20 and the completion of the series of processes after exposure, and then confirms that the state of the release button 30 is not depressed, and ends the photographing sequence.

  Next, a drive sequence in another monitor photographing mode in which a photographer or the like photographs using the display monitor 16 will be described with reference to FIG.

  When shooting using the display monitor 16, the shooting mode switching button 75 is operated to set the monitor shooting mode. When shifting to the monitor photographing mode, the body microcomputer 12 retracts the quick return mirror 4 from the optical path X. Therefore, since the subject image reaches the image sensor 11, the image sensor control unit 13 reads the image data from the image sensor 11 and displays the captured image on the display monitor 16 after predetermined image processing. Thus, by displaying the captured image on the display monitor 16, the photographer or the like can follow the subject without looking through the viewfinder eyepiece window 9.

  Next, when the photographer or the like presses the release button 30 halfway, the body microcomputer 12 of the digital camera 1 receives various lens data from the lens microcomputer 20 in the interchangeable lens 2 via the lens mount 21 and the body mount 23. Receive and save in the built-in memory. Next, the body microcomputer 12 returns the quick return mirror 4 to a predetermined position in the optical path X by the quick return mirror control unit 43, acquires the Df amount from the focus detection unit 5, and the focus lens for the Df amount. The lens microcomputer 20 is instructed to drive the group 25. The lens microcomputer 20 controls the focus control unit 26 to operate the focus lens group 25 by the amount of Df. As described above, the focus detection and the driving of the focus lens group 25 are repeated, and the Df amount becomes small.

  After that, the body microcomputer 12 instructs the lens microcomputer 20 to make the aperture value calculated based on the output from the photometric sensor (not shown) by fully pressing the release button 30. Then, the lens microcomputer 20 controls the aperture controller 27 to narrow the aperture to the instructed aperture value. Simultaneously with the aperture value instruction, the body microcomputer 12 causes the quick return mirror control unit 43 to retract the quick return mirror 4 from the optical path X. After the retraction is completed, the image sensor control unit 13 instructs the image sensor 11 to drive and instructs the shutter unit 10 to operate. Note that the image sensor control unit 13 exposes the image sensor 11 for the time of the shutter speed calculated based on an output from a photometric sensor (not shown).

  After the exposure is completed, the image sensor control unit 13 reads out image data from the image sensor 11 and controls to display a captured image on the image display display monitor 16 after predetermined image processing, and the image reading / recording unit 18. The image data is written to the storage medium via Further, after the exposure is completed, the quick return mirror 4 is located in a state of being retracted from the optical path X, and it is possible to continue the monitor photographing mode.

  When canceling the monitor photographing mode, the photographing mode switching button 75 is operated to shift to a normal photographing mode, that is, a finder photographing mode for photographing through the finder eyepiece window 9. At this time, the quick return mirror 4 is returned to a predetermined position in the optical path X. The quick return mirror 4 is also returned to a predetermined position in the optical path X when the power source of the digital camera 1 is turned off.

  In this way, by installing the monitor shooting mode, even single-lens reflex digital cameras can be shot using a display monitor, and there is no need to take a picture through the viewfinder. For unfamiliar beginners, it is very easy to use.

  Next, an operation for determining whether or not the aperture ring 40 is mounted when the interchangeable lens 2 is attached to the main body of the digital camera 1 will be described with reference to the flowchart shown in FIG.

  The body microcomputer 12 of the digital camera 1 determines whether or not the interchangeable lens 2 is attached (Step 1). When it is determined that the interchangeable lens 2 is attached, information on whether or not the aperture ring 40 is mounted in the interchangeable lens 2 is acquired from the memory unit 69 in the interchangeable lens 2 (Step 2). Next, based on this information, it is determined whether or not the aperture ring 40 is mounted in the interchangeable lens 2 (Step 3). When the aperture ring 40 is mounted, the process proceeds to (Step 4), and when not mounted, the process proceeds to (Step 5). When the aperture ring 40 is mounted in the interchangeable lens 2, the function button (1) 77 is assigned to a dedicated button for aperture value setting (Step 4). Conversely, when the aperture ring 40 is not mounted in the interchangeable lens 2, the function button (1) 77 is assigned to the existing setting menu. This existing setting menu is a menu that allows setting of the number of recorded pixels at the time of shooting, continuous shooting speed, etc., and is set as an initial value or can be arbitrarily set by a photographer or the like. Any method may be used.

  Further, when the aperture ring 40 is mounted, the body microcomputer 12 can be set so as not to accept the operation of the function button (1) 77 by the photographer or the like.

  Hereinafter, the aperture value setting menu 80 using the function button (1) 77 when the aperture ring 40 is not mounted on the interchangeable lens 2 will be described with reference to FIG.

  First, when a photographer or the like presses the function button (1) 77, the body microcomputer 12 controls the image display control unit 15 to display the aperture value setting menu 80 image shown in FIG. [A] The aperture value auto setting item 81 is highlighted. Here, when the photographer or the like presses the up / down / left / right arrow keys of the cross operation key 73, the body microcomputer 12 selects aperture setting values for each AV from [A] and [2] to [11]. To accept changes to the settings. When the icon indicating [END] is selected, the screen returns to the main menu. The method for ending the aperture value setting menu 80 may be a method of exiting from the aperture value setting menu 80 by pressing the release button 30.

  Next, an exposure setting operation of the digital camera 1 when the aperture ring 40 is mounted on the interchangeable lens 2 will be described with reference to FIGS.

  The digital camera 1 includes a program shooting mode for automatically setting exposure for a normal shooting area, a shutter speed priority shooting mode for manually setting a shutter speed, an aperture priority shooting mode for manually setting an aperture value, and a shutter. There are four exposure setting modes: a manual shooting mode in which both the speed and aperture value are set manually.

  A photographer who operates the digital camera 1 can select four exposure setting modes by setting the aperture ring 40 in combination with a predetermined rotation angle and a rotation angle of the shutter speed setting dial 31. That is, the photographer or the like can set the program shooting mode by setting the shutter speed setting dial 31 to the auto position in a state where the letter [A] of the aperture ring 40 matches the index 33. A photographer or the like can set the shutter speed priority shooting mode by setting the shutter speed setting dial 31 to a position where the shutter speed setting dial 31 can be manually set in a state where the letter [A] of the aperture ring 40 matches the index 33. The photographer or the like can set the aperture priority shooting mode by setting the shutter speed setting dial 31 to the auto position while any of the characters [2] to [11] on the aperture ring 40 is matched with the index 33. It is. The photographer or the like sets the manual shooting mode when the shutter speed setting dial 31 is set to a position where the shutter speed setting dial 31 can be manually set in a state where any of the characters [2] to [11] on the aperture ring 40 matches the index 33. Is possible.

  Hereinafter, of the four exposure setting modes, the program shooting mode and the shutter speed priority shooting mode are collectively referred to as an auto aperture mode. Hereinafter, the aperture priority shooting mode and the manual shooting mode are collectively referred to as a manual aperture mode.

  The aperture linear sensor 41 outputs a signal corresponding to the rotation angle to the aperture controller 27. When the release button 30 is operated when the character [A] on the aperture ring 40 matches the index 33, the aperture controller 27 sets the exposure setting mode based on the signal received from the aperture linear sensor 41. Judge that it is in auto iris mode. The determination result is transmitted to the lens microcomputer 20 and the body microcomputer 12.

  The shutter speed setting dial 31 outputs a signal corresponding to the rotation angle to the body microcomputer 12. The body microcomputer 12 recognizes that the exposure setting mode is the automatic aperture mode based on the determination result received from the aperture controller 27 and the signal from the shutter speed setting dial 31.

  The body microcomputer 12 transmits a command to the digital signal processing unit 53. The digital signal processing unit 53 transmits an image signal to the body microcomputer 12 at a predetermined timing based on the received command. The body microcomputer 12 calculates an exposure value based on the received image signal. When the exposure setting mode is the program shooting mode, the body microcomputer 12 calculates an appropriate combination from the adjustable aperture value and the shutter speed. When the exposure setting mode is the shutter speed priority shooting mode, the body microcomputer 12 calculates an appropriate aperture value for the set shutter speed.

  The body microcomputer 12 generates a control signal based on the calculation result. The body microcomputer 12 transmits a control signal based on the calculated aperture value to the aperture controller 27 via the lens microcomputer 20 on the interchangeable lens 2 side. When the exposure setting mode is the program shooting mode, the body microcomputer 12 transmits a control signal based on the calculated shutter speed to the shutter control unit 14. When the exposure setting mode is the shutter speed priority shooting mode, the body microcomputer 12 transmits the content of the shutter speed set by the shutter speed setting dial 31 to the shutter control unit 14.

  In addition, the body microcomputer 12 transmits a control signal to the image display control unit 15. The image display control unit 15 drives the display monitor 16. When the content of the control signal indicates the program setting mode, the display monitor 16 displays that the exposure setting mode is the program shooting mode. When the content of the display monitor 16 and the control signal indicates the shutter priority mode, a display indicating that the exposure setting mode is the shutter speed priority mode is displayed.

  The diaphragm control unit 27 generates a drive signal for driving the diaphragm drive motor 28b based on the control signal from the lens microcomputer 20. The aperture drive motor 28b is driven based on the drive signal. The aperture blade 28a is driven by the drive of the aperture drive motor 28b.

  The shutter control unit 14 generates a drive signal for driving the shutter drive motor 10 a based on the control signal from the body microcomputer 12. The shutter drive motor 10a is driven based on the drive signal. The shutter unit 10 is driven by the driving of the shutter drive motor 10a.

  As described above, the exposure setting in the auto aperture mode of the digital camera 1 is performed. The above operation is executed immediately after the release button 30 of the photographer or the like is operated.

  When the photographing is finished, the body microcomputer 12 transmits a control signal to the image recording control unit 17. The image reading / recording unit 18 records the image signal in the internal memory and / or the removable memory based on a command from the image recording control unit 17.

  When the content of the control signal indicates the program setting mode based on a command from the image recording control unit 17, the image reading / recording unit 18 indicates that the exposure setting mode is the program shooting mode together with the image signal. Is recorded in the internal memory and / or the removable memory. The image reading / recording unit 18 indicates that the exposure setting mode together with the image signal is the shutter speed priority mode when the content of the control signal indicates the shutter priority mode based on the command of the image recording control unit 17. Information is recorded in internal memory and / or removable memory.

  Next, when the release button 30 is operated when the position of any of the characters [2] to [11] on the aperture ring 40 is aligned with the index 33, the aperture controller 27 causes the aperture linear sensor to operate. Based on the signal received from 41, it is determined that the exposure setting mode is the manual aperture mode. The determined result is transmitted to the lens microcomputer 20. The shutter speed setting dial 31 outputs a signal corresponding to the rotation angle to the body microcomputer 12.

  The body microcomputer 12 recognizes that the exposure setting mode is the manual aperture mode based on the determination result received from the aperture controller 27 and the signal from the shutter speed setting dial 31.

  The lens microcomputer 20 requests aperture value information detected from the rotation angle of the aperture ring 40 to the aperture controller 27. The aperture control unit 27 transmits aperture value information detected from the rotation angle of the aperture ring 40 based on a command from the lens microcomputer 20 to the lens microcomputer 20 and the body microcomputer 12. The body microcomputer 12 transmits a command to the digital signal processor 53 when the exposure setting mode is the aperture priority shooting mode. The digital signal processing unit 53 transmits an image signal to the body microcomputer 12 at a predetermined timing based on the received command.

  When the exposure setting mode is the aperture priority shooting mode, the body microcomputer 12 calculates the shutter speed based on the received image signal. When the exposure setting mode is the aperture priority shooting mode, the body microcomputer 12 calculates an appropriate shutter speed for the detected aperture value. When the exposure setting mode is the aperture priority shooting mode, the body microcomputer 12 generates a control signal based on the calculation result. When the exposure setting mode is the aperture priority shooting mode, the body microcomputer 12 transmits a control signal based on the calculated shutter speed to the shutter control unit 14. When the exposure setting mode is the manual shooting mode, the body microcomputer 12 transmits the content of the shutter speed set by the shutter speed setting dial 31 to the shutter control unit 14.

  In addition, the body microcomputer 12 transmits a control signal to the image display control unit 15. The image display control unit 15 drives the display monitor 16. The display monitor 16 displays that the exposure setting mode is the aperture priority shooting mode when the content of the control signal indicates the aperture priority shooting mode. The display monitor 16 displays that the exposure setting mode is the manual photographing mode when the content of the control signal indicates the manual photographing mode.

  The diaphragm control unit 27 generates a drive signal for driving the diaphragm drive motor 28b based on the control signal from the lens microcomputer 20. The aperture drive motor 28b is driven based on the drive signal. The aperture blade 28a is driven by the drive of the aperture drive motor 28b. The shutter control unit 14 generates a drive signal for driving the shutter drive motor 10 a based on the control signal from the body microcomputer 12. The shutter drive motor 10a is driven based on the drive signal. The shutter unit 10 is driven by the driving of the shutter drive motor 10a.

  As described above, the exposure setting in the manual aperture mode of the digital camera 1 is performed. The above operation is executed immediately after the release button 30 of the photographer or the like is operated.

  When the photographing is finished, the body microcomputer 12 transmits a control signal to the image recording control unit 17. The image reading / recording unit 18 records the image signal in the internal memory and / or the removable memory based on a command from the image recording control unit 17.

  The image reading / recording unit 18 is information indicating that the exposure setting mode is the aperture priority mode together with the image signal when the content of the control signal indicates the aperture priority mode based on the command of the image recording control unit 17. Is recorded in the internal memory and / or the removable memory. The image reading / recording unit 18 is information indicating that the exposure setting mode is the manual shooting mode together with the image signal when the content of the control signal indicates the manual shooting mode based on the command of the image recording control unit 17. Is recorded in the internal memory and / or the removable memory.

  Next, an exposure setting operation of the digital camera 1 when the aperture ring 40 is not mounted on the interchangeable lens 2 will be described with reference to FIGS. 4, 10, and 13.

  The photographer who operates the digital camera 1 sets the combination of the selection from the aperture value setting menu 80 by pressing the function button (1) 77 and the rotation angle of the shutter speed setting dial 31 to 4 Two exposure setting modes can be selected. That is, the photographer or the like can set the program shooting mode by setting the shutter speed setting dial 31 to the auto position while the icon [A] 81 is selected from the aperture value setting menu 80. In this case, the initial setting value of the aperture value setting menu 80 may be [A]. A photographer or the like can set the shutter speed priority shooting mode by setting the shutter speed setting dial 31 to a position where manual setting is possible with the icon [A] 81 selected from the aperture value setting menu 80. The photographer or the like can set the aperture priority shooting mode by setting the shutter speed setting dial 31 to the auto position with any of the icons [2] to [11] 81 selected from the aperture value setting menu 80. is there. A photographer or the like sets the manual shooting mode when the shutter speed setting dial 31 is set to a position where manual setting can be performed with any of the icons [2] to [11] 81 selected from the aperture setting menu 80. Is possible.

  Hereinafter, among the four exposure setting modes, the program shooting mode and the shutter speed priority shooting mode are collectively referred to as an auto aperture mode as described above. Hereinafter, the aperture priority shooting mode and the manual shooting mode are collectively referred to as a manual aperture mode.

  When the icon [A] 81 is selected from the aperture value setting menu 80, when the release button 30 is operated, the body microcomputer 12 recognizes that the exposure setting mode is the auto aperture mode.

  The body microcomputer 12 transmits a command to the digital signal processing unit 53. The digital signal processing unit 53 transmits an image signal to the body microcomputer 12 at a predetermined timing based on the received command. The body microcomputer 12 calculates an exposure value based on the received image signal. When the exposure setting mode is the program shooting mode, the body microcomputer 12 calculates an appropriate combination from the adjustable aperture value and the shutter speed. When the exposure setting mode is the shutter speed priority shooting mode, the body microcomputer 12 calculates an appropriate aperture value for the set shutter speed.

  The body microcomputer 12 generates a control signal based on the calculation result. The body microcomputer 12 transmits a control signal based on the calculated aperture value to the aperture controller 27 via the lens microcomputer 20 on the interchangeable lens 2 side. When the exposure setting mode is the program shooting mode, the body microcomputer 12 transmits a control signal based on the calculated shutter speed to the shutter control unit 14. When the exposure setting mode is the shutter speed priority shooting mode, the body microcomputer 12 transmits the content of the shutter speed set by the shutter speed setting dial 31 to the shutter control unit 14.

  In addition, the body microcomputer 12 transmits a control signal to the image display control unit 15. The image display control unit 15 drives the display monitor 16. When the content of the control signal indicates the program setting mode, the display monitor 16 displays that the exposure setting mode is the program shooting mode. When the content of the control signal indicates the shutter priority mode, the display monitor 16 displays that the exposure setting mode is the shutter speed priority mode.

  The diaphragm control unit 27 generates a drive signal for driving the diaphragm drive motor 28b based on the control signal from the lens microcomputer 20. The aperture drive motor 28b is driven based on the drive signal. The aperture blade 28a is driven by the drive of the aperture drive motor 28b.

  The shutter control unit 14 generates a drive signal for driving the shutter drive motor 10 a based on the control signal from the body microcomputer 12. The shutter drive motor 10a is driven based on the drive signal. The shutter unit 10 is driven by the driving of the shutter drive motor 10a.

  As described above, the exposure setting in the auto aperture mode of the digital camera 1 is performed. The above operation is executed immediately after the release button 30 of the photographer or the like is operated.

  When the photographing is finished, the body microcomputer 12 transmits a control signal to the image recording control unit 17. The image reading / recording unit 18 records the image signal in the internal memory and / or the removable memory based on a command from the image recording control unit 17.

  When the content of the control signal indicates the program setting mode based on a command from the image recording control unit 17, the image reading / recording unit 18 indicates that the exposure setting mode is the program shooting mode together with the image signal. Is recorded in the internal memory and / or the removable memory. The image reading / recording unit 18 indicates that the exposure setting mode together with the image signal is the shutter speed priority mode when the content of the control signal indicates the shutter priority mode based on the command of the image recording control unit 17. Information is recorded in internal memory and / or removable memory.

  Next, when one of the icons [2] to [11] 81 is selected from the aperture value setting menu 80, when the release button 30 is operated, the body microcomputer 12 sets the exposure setting mode to the manual aperture mode. Recognize that.

  The body microcomputer 12 transmits a command to the digital signal processing unit 53. The digital signal processing unit 53 transmits an image signal to the body microcomputer 12 at a predetermined timing based on the received command. The body microcomputer 12 transmits a command to the digital signal processor 53 when the exposure setting mode is the aperture priority shooting mode. The digital signal processing unit 53 transmits an image signal to the body microcomputer 12 at a predetermined timing based on the received command.

  When the exposure setting mode is the aperture priority shooting mode, the body microcomputer 12 calculates the shutter speed based on the received image signal. When the exposure setting mode is the aperture priority shooting mode, the body microcomputer 12 calculates an appropriate shutter speed for the detected aperture value. When the exposure setting mode is the aperture priority shooting mode, the body microcomputer 12 generates a control signal based on the calculation result. When the exposure setting mode is the aperture priority shooting mode, the body microcomputer 12 transmits a control signal based on the calculated shutter speed to the shutter control unit 14. When the exposure setting mode is the manual shooting mode, the body microcomputer 12 transmits the content of the shutter speed set by the shutter speed setting dial 31 to the shutter control unit 14.

  In addition, the body microcomputer 12 transmits a control signal to the image display control unit 15. The image display control unit 15 drives the display monitor 16. The display monitor 16 displays that the exposure setting mode is the aperture priority shooting mode when the content of the control signal indicates the aperture priority shooting mode. The display monitor 16 displays that the exposure setting mode is the manual photographing mode when the content of the control signal indicates the manual photographing mode.

  The diaphragm control unit 27 generates a drive signal for driving the diaphragm drive motor 28b based on the control signal from the lens microcomputer 20. The aperture drive motor 28b is driven based on the drive signal. The aperture blade 28a is driven by the drive of the aperture drive motor 28b. The shutter control unit 14 generates a drive signal for driving the shutter drive motor 10 a based on the control signal from the body microcomputer 12. The shutter drive motor 10a is driven based on the drive signal. The shutter unit 10 is driven by the driving of the shutter drive motor 10a.

  As described above, the exposure setting in the manual aperture mode of the digital camera 1 is performed. The above operation is executed immediately after the release button 30 of the photographer or the like is operated.

  The image reading / recording unit 18 is information indicating that the exposure setting mode is the aperture priority mode together with the image signal when the content of the control signal indicates the aperture priority mode based on the command of the image recording control unit 17. Is recorded in the internal memory and / or the removable memory. The image reading / recording unit 18 is information indicating that the exposure setting mode is the manual shooting mode together with the image signal when the content of the control signal indicates the manual shooting mode based on the command of the image recording control unit 17. Is recorded in the internal memory and / or the removable memory.

  Next, a narrowing mode at the time of shooting will be described.

  In the digital camera 1, the depth of field is confirmed by looking at the display monitor 16. At this time, the display monitor 16 displays an image (hereinafter referred to as an actual aperture live view image) in accordance with the aperture value of the aperture unit 28 at the time of actual photographing. When the aperture mode button 76 is pressed to display the actual aperture live view image on the display monitor 16, as shown in FIG. 3, the monitor imaging mode is automatically shifted. By shifting to this monitor shooting mode, it is possible to display an actual aperture live view image in accordance with the aperture value at the time of actual shooting on the display monitor 16, and the depth of field can be easily confirmed. it can.

  In the aperture mode, when the aperture ring 40 is mounted on the interchangeable lens 2, the lens microcomputer 20 requests aperture value information detected from the rotation angle of the aperture ring 40 to the aperture controller 27. The aperture control unit 27 transmits aperture value information detected from the rotation angle of the aperture ring 40 based on a command from the lens microcomputer 20 to the lens microcomputer 20 and the body microcomputer 12. The diaphragm control unit 27 generates a drive signal for driving the diaphragm drive motor 28b based on the control signal from the lens microcomputer 20. The aperture drive motor 28b is driven based on the drive signal. The aperture blade 28a is driven by the drive of the aperture drive motor 28b.

  Next, a specific operation in the narrowing mode will be described with reference to the flowchart shown in FIG.

  The body microcomputer 12 of the digital camera 1 determines whether or not the narrow-down mode button 76 has been pressed (Step 1). When the narrowing mode button 76 is pressed, the mode is shifted to the narrowing mode (Step 2). When the mode is changed to the narrow-down mode, the quick return mirror control unit 43 retracts the quick return mirror 4 out of the optical path X and starts the operation of the image sensor 11 as shown in FIG. 3 (Step 3). Next, the live display image obtained by the image sensor 11 is displayed on the display monitor 16 by the image display control unit 15 (Step 4). When a photographer or the like operates the aperture ring 40 to set the aperture value to a predetermined aperture value (Step 5), the aperture controller 27 detects aperture information detected from the rotation angle of the aperture ring 40 based on a command from the lens microcomputer 20. Detect (Step 6). The diaphragm control unit 27 generates a drive signal for driving the diaphragm drive motor 28b based on the control signal from the lens microcomputer 20, and the diaphragm blade 28a is driven by the drive of the diaphragm drive motor 28b. It is changed to a value (Step 7). At this time, the image displayed on the display monitor 16 is an actual aperture live view image at an aperture value F8 as shown in FIG. 15, for example, and the depth of field at the time of shooting can be easily confirmed. At this time, the actual aperture value is displayed on the upper right of the display monitor 16. Then, when the narrowing mode button 76 is released (Step 8), the narrowing mode ends, and the quick return mirror 4 is returned to a predetermined position in the optical path X as shown in FIG. 2 (Step 9).

  In the case where the aperture ring 40 is not mounted on the interchangeable lens 2, if the aperture value setting menu 80 is used, the same function as described above is provided, and the description thereof is omitted.

  In the present embodiment as described above, it is possible to determine whether or not the aperture ring of the interchangeable lens is mounted on the camera body, and the operation menu of the camera body is optimized depending on whether or not the aperture ring is mounted. Therefore, the exposure value at the time of shooting can be easily changed in either the interchangeable lens or the camera body.

  In the present embodiment, the aperture value setting is assigned to the function button (1). However, the function button (2) may be assigned. Also, the number of function buttons is not limited to two.

  Further, the setting value of the aperture value setting menu is not limited to 1 AV described in the present embodiment, and may be set more finely. Further, regarding the arrangement of the icons in the aperture value setting menu, other arrangement methods may be used such that the photographer can arbitrarily change the arrangement.

  Further, the number of icons in the aperture value setting menu may be increased or decreased based on the aperture value setting range for each interchangeable lens. Accordingly, the setting value of the aperture value is not limited to [2] to [11] described in the present embodiment, and can be set to, for example, [2] to [22] according to the interchangeable lens. It may be.

  Note that when the aperture ring is mounted, the function button (1) can be assigned to another setting menu, so that it is needless to say that the operability of the photographer and the like is improved.

  The presence or absence of the aperture ring may be displayed on a display monitor.

  In the present embodiment, the image displayed on the display monitor is performed using the imaging sensor. However, a second imaging sensor is separately disposed in the finder optical system and the image is displayed on the display monitor. It is also possible to use a method. In that case, there is no need to retract the quick return mirror out of the optical path.

  As for the narrowing mode, a method is used in which the mode is switched when the narrowing mode button is pressed once, and is released when it is pressed again. However, the narrowing mode is continued only while the narrowing mode button is pressed. Good.

  The present invention, in a single-lens reflex digital camera, optimizes the operation menu of the camera body in accordance with whether or not the interchangeable lens has a stop, and expands the convenience of the imaging apparatus.

1 is a block diagram showing a control system for an interchangeable lens and a digital camera body according to an embodiment of the present invention. Conceptual diagram for explaining a viewfinder shooting mode according to an embodiment of the present invention The conceptual diagram explaining the monitor imaging | photography mode which concerns on embodiment of this invention The top view of the digital camera which concerns on embodiment of this invention The rear view of the digital camera concerning an embodiment of the invention (A) is an expanded view of the outer peripheral surface of the aperture ring according to the embodiment of the present invention, (b) is an expanded view of the inner peripheral surface of the aperture ring according to the embodiment of the present invention. Sectional drawing which shows the coupling | bonding of the aperture ring and aperture linear sensor which concern on embodiment of this invention (A) is a circuit diagram of the aperture linear sensor of the lens barrel according to the embodiment of the present invention, and (b) is a graph showing the output of the aperture linear sensor of the lens barrel according to the embodiment of the present invention. The graph which shows the relationship between the rotation angle of the aperture ring which concerns on embodiment of this invention, and the output value of an aperture linear sensor 1 is a block diagram showing a control system in a digital camera according to an embodiment of the present invention. The block diagram which shows the control system in the interchangeable lens which concerns on embodiment of this invention The flowchart which judges the presence or absence of the aperture ring mounting of the interchangeable lens which concerns on embodiment of this invention The figure explaining the aperture value setting menu in the digital camera body according to the embodiment of the present invention Flowchart for explaining a narrowing-down mode according to the embodiment of the present invention The figure which shows the display image of the real aperture live view which concerns on embodiment of this invention

Explanation of symbols

L imaging optical system Df defocus amount X optical path 1 digital camera 2 interchangeable lens 4 quick return mirror 9 finder eyepiece window 10 shutter unit 11 image sensor 12 body microcomputer 14 shutter control unit 15 image display control unit 16 display monitor 18 image reading / recording 20 Lens microcomputer 21 Lens mount 23 Body mount 25 Focus lens group 27 Aperture control unit 28 Aperture unit 28a Aperture blade 28b Aperture drive motor 30 Release button 31 Shutter speed setting dial 33 Index 38 Zoom ring 39 Focus ring 40 Aperture ring 41 Aperture linear Sensor 43 Quick return mirror control unit 44 Quick return mirror drive motor 62 Zoom control unit 65 Focus drive motor 69 Replacement Lens memory 71 Shooting / playback mode switching lever 72 MENU button 75 Shooting mode switching button 76 Narrowing mode button 77 Function button (1)
78 Function buttons (2)
80 Aperture setting menu 81 Icon

Claims (2)

An imaging optical system, an aperture unit for setting the aperture value of the imaging optical system, aperture drive control means for driving and controlling the aperture unit, and first aperture value setting means for manually setting the aperture value of the aperture unit An image pickup apparatus in which an interchangeable lens equipped with can be attached and detached,
Determining means for determining whether or not the first aperture value setting means is mounted on the interchangeable lens;
Second aperture value setting means capable of setting the aperture value of the interchangeable lens;
Command means for sending a command to the aperture drive control means to drive the aperture unit of the interchangeable lens based on the aperture value set by the second aperture value setting means;
With
When it is determined that the first aperture value setting unit is not mounted on the interchangeable lens, the second aperture value setting unit is made operable.
An imaging apparatus characterized in that, when it is determined that the first aperture value setting means is mounted on the interchangeable lens, the second aperture value setting means cannot be operated. An imaging optical system, an aperture unit for setting the aperture value of the imaging optical system, aperture drive control means for driving and controlling the aperture unit, and first aperture value setting means for manually setting the aperture value of the aperture unit An image pickup apparatus in which an interchangeable lens equipped with can be attached and detached,
Determining means for determining whether or not the first aperture value setting means is mounted on the interchangeable lens;
A third aperture value setting means capable of setting either the aperture value of the interchangeable lens or a set value other than the aperture value;
Command means for sending a command to the aperture drive control means to drive the aperture unit of the interchangeable lens based on the aperture value set by the third aperture value setting means;
With
When it is determined that the first aperture value setting unit is not mounted on the interchangeable lens, the third aperture value setting unit is set in a state where the aperture value can be set,
When it is determined that the first aperture value setting unit is mounted on the interchangeable lens, the third aperture value setting unit is set to a state in which a value other than the aperture value can be set. An imaging apparatus characterized by the above.

Images