Fitting mount and fitting device

Abstract

The present invention relates to an accessory mount and an accessory device. The accessory mount is attachable to and detachable from a camera mount. The accessory mount includes a base portion and a movable portion movable with respect to the base portion. In a case where the accessory mount is attached to the camera mount, the movable portion is moved to a first side by coming into contact with a portion of the camera mount, and then moved to a second side opposite to the first side, thereby overlapping the portion when viewed from a central axis direction of the accessory mount.

Description

Technical Field

[0001] This disclosure relates to accessory mounts that can be attached to and detached from camera mounts, as well as accessory devices such as lens devices. Background Technology

[0002] Japanese Patent Application Publication No. 8-43910 and No. 2017-138437 disclose accessory devices having accessory mounting parts that can be attached to and detached from camera mounts. The accessory device is attached to the camera mount by inserting the accessory mounting part into the camera mount in an insertion phase (insertion orientation or insertion rotation position) and then rotating the accessory mounting part. Summary of the Invention

[0003] The accessory mount can be attached to and detachable from the camera mount. The accessory mount may include a base portion and a movable portion movable relative to the base portion. When the accessory mount is attached to the camera mount, the movable portion can move to a first side by contacting a portion of the camera mount, and then to a second side opposite the first side, thereby overlapping the first side when viewed from the central axis direction of the accessory mount. Accessories having the above-described accessory mount also constitute another aspect of this disclosure. Camera mounts that can be attached to the above-described accessory mount also constitute another aspect of this disclosure. Imaging devices having the above-described camera mount also constitute another aspect of this disclosure.

[0004] The features of this disclosure will become apparent from the following description of embodiments with reference to the accompanying drawings. The following description of the embodiments will be given by way of example. Attached Figure Description

[0005] Figure 1 This is a front view of the lens mount (accessory mount) according to the first embodiment.

[0006] Figure 2 It is along Figure 1 The cross-sectional view intercepted by line AA.

[0007] Figure 3 This is a partial side view of an interchangeable lens including the lens mount according to the first embodiment.

[0008] Figure 4A , Figure 4B and Figure 4C This is an example of Figure 3 A diagram illustrating the process of attaching an interchangeable lens to the camera body.

[0009] Figure 5 This is a front view of the lens mount according to the second embodiment.

[0010] Figure 6A , Figure 6B and Figure 6C This illustrates the process of attaching interchangeable lenses to the camera body, along with... Figure 5 The cross-sectional view taken by line BB.

[0011] Figure 7 This is a diagram illustrating the configuration of a camera system according to this embodiment.

[0012] Figure 8 This is a block diagram illustrating the electrical configuration of the camera system.

[0013] Figure 9 This is a diagram illustrating a modified example of the lens mount according to the first embodiment. Detailed Implementation

[0014] Embodiments according to this disclosure will now be described in detail with reference to the accompanying drawings. First Embodiment

[0015] Figure 7 An example camera system is shown, comprising an interchangeable lens (lens assembly) 100 as an accessory and a camera body 200 as an imaging device. The interchangeable lens 100 is detachably attached to the camera body 200. The interchangeable lens 100 includes an imaging optical system (optical system, lens unit) 40. The imaging optical system 40 includes multiple lenses (such as focusing lenses and zoom lenses) arranged on the optical axis OA and an electromagnetic aperture.

[0016] The camera body 200 includes an image sensor 201, a viewfinder 202, a control unit 203, and a display unit 204. The image sensor 201 is a photoelectric conversion element such as a CCD sensor or a CMOS sensor, and generates image data by photoelectric conversion of the optical image (subject image) formed by the imaging optical system 40. The viewfinder 202 includes a display element for displaying a viewfinder image based on the image data and an eyepiece lens, and the user can view the viewfinder image displayed on the display element by looking through the eyepiece lens.

[0017] The control unit 203 includes a camera CPU and controls the operation of the camera body 200. The display unit 204 is disposed on the back of the camera body 200 and displays a live view image or a captured image read from a recording medium (not shown) based on image data. The display unit 204 includes a touch sensor that allows user operation to change various settings of the camera system.

[0018] Figure 8The electrical configuration of the interchangeable lens 100 and camera body 200 is illustrated. A camera CPU 210 is included in the aforementioned control unit 203 and controls various operations of the camera body 200. When the interchangeable lens 100 is attached, the camera CPU 210 communicates with the lens CPU 110 disposed in the interchangeable lens 100 via electrical contacts 205 on the camera body side and electrical contacts 101 on the interchangeable lens side. The camera CPU 210 sends information such as the drive amount of the focusing lens and the aperture value of the electromagnetic aperture to the lens CPU 110. The lens CPU 110 sends information such as magnification and other optical information to the camera CPU 210. Electrical contacts 101 and 205 include contacts for supplying power from the camera body 200 to the interchangeable lens 100.

[0019] The camera body 200 includes a power switch 211, a release switch 212, a metering unit 213, a focus detector 214, an exposure unit 215, an image capturing unit 216, and an image recorder 217. The power switch 211 is user-operable to power on and off the camera body 200 and the interchangeable lens 100. The release switch 212 is user-operable to instruct the camera CPU 210 to perform image preparation and recording operations. Based on the SW1 signal input when the release switch 212 is half-pressed, the camera CPU 210 performs image preparation, which includes brightness measurement using the metering unit 213, focus detection using the focus detector 214, and focusing lens control. The camera CPU 210 determines the aperture value of the electromagnetic aperture and the exposure (shutter speed) of the image sensor 201 based on the metering results. The camera CPU 210 also determines the driving amount of the focusing lens for obtaining a focused state relative to the subject based on the focus information related to the imaging optical system 40 obtained by the focus detector 214. The camera CPU 210 sends information related to the determined aperture value and the driving amount of the focusing lens to the lens CPU 110.

[0020] In addition to the lens CPU 110, the interchangeable lens 100 also includes an electromagnetic aperture drive unit 112 and a focus drive unit 113.

[0021] The lens CPU 110 controls the electromagnetic aperture to the aperture value received from the camera CPU 210 via the electromagnetic aperture drive unit 112, and drives the focusing lens via the focusing drive unit 113 with the driving amount received from the camera CPU 210.

[0022] The camera CPU 210 performs recording operations based on the SW2 signal input when the release switch 212 is fully pressed. More specifically, the camera CPU 210 operates the shutter (not shown) included in the exposure unit 215 and causes the imaging unit 216, which includes the image sensor 201, to perform photoelectric conversion operations.

[0023] Image data output from camera unit 216 (image sensor 201) is input to camera CPU 210, where image processing unit performs various image processing operations. In image recorder 217, the processed image data is written to and stored in a recording medium such as semiconductor memory, magnetic disk, or optical disk.

[0024] Figure 1 Example of a lens mount 10 as an accessory mounting member according to the first embodiment. The lens mount 10 is provided at the image side (camera body side) end of the replaceable lens 100 and is detachably attached (connected) to a camera mount provided on the subject side of the camera body 200. Figure 2 Examples along Figure 1 The cross section taken by line AA of the illustrated lens mount 10. Figure 3 An example is a lens mount 10 fixed to the lens barrel portion 14 of the replaceable lens 100 when viewed from a direction orthogonal to the central axis (optical axis of the camera optical system). The direction in which the central axis of the lens mount 10 extends is called the central axis direction, and the direction orthogonal to the central axis is called the radial direction.

[0025] The lens mount 10 includes an annular mount base (base portion) 11 and a connecting member 12 which is a movable portion (retaining member) provided at multiple positions (three positions in this embodiment) in the circumferential direction around the central axis of the mount base 11.

[0026] The mounting base 11 includes: a lens mounting surface 11a, which serves as an accessory mounting surface and is configured to contact the camera mounting surface (hereinafter referred to as the camera mounting surface) in the central axis direction; and a radial engagement portion 11b, which is configured to radially engage with the inner circumferential surface of the camera mounting component. The mounting base 11 also includes: a locking hole portion 11c, which serves as a limiting portion (recess) to prevent rotation of the lens mounting component 10 relative to the camera mounting component in the circumferential direction; and a claw portion 11d, which serves as a protrusion and protrudes radially outward at multiple locations (two locations in this embodiment) in the circumferential direction. The lens mounting component may not include the locking hole portion and the claw portion.

[0027] like Figure 1As indicated by alternating long and two short dotted lines, the camera mount includes a locking pin 20d as a protrusion, which protrudes from the camera mount surface toward the lens mount 10. With the lens mount surface 11a in contact with the camera mount surface, the locking pin 20d enters the locking hole 11c and engages with it circumferentially, thereby preventing rotation of the lens mount 10 relative to the camera mount and fixing its circumferential position.

[0028] Inside the mounting base 11 of the lens mount 10, there is a feature for holding... Figure 8 The contact holder 15 of the illustrated electrical contact 101.

[0029] like Figure 2 As illustrated, each engaging member 12 is movably held in the radial direction by the mounting base 11. More specifically, the base portion 12a, which is part of the engaging member 12, is inserted into and held by the retaining hole portion 11g, which is formed in the mounting base 11 in a radially extending manner. A receiving portion 12a1 is formed in the base portion 12a of the engaging member 12, and a compression coil spring (lens-side force-applying member) 13, which is an elastic member, is received in the receiving portion 12a1.

[0030] One end of the compression coil spring 13 (the radially outer end of the mounting base 11) contacts the bottom surface 12b of the receiving portion 12a1, and the other end contacts the spring contact surface 11e of the mounting base 11, thereby compressing the compression coil spring 13 in the radial direction of the mounting base 11. The elastic force (force applied) generated by the compression coil spring 13 applies radially outward force to the engaging member 12 until the stop portion 12c contacts the stop portion 11f of the mounting base 11 (hereinafter referred to as the initial position). Here, the radially outward direction is opposite to the direction in which the engaging member 12 retracts from the claw of the camera mount, as described later.

[0031] The joining member 12 also includes a joining portion (retaining member) 12e that protrudes radially outward from the base portion 12a. The image-side surface of the joining portion 12e is formed as an inclined surface 12d that is inclined relative to the surface orthogonal to the central axis of the mounting base 11.

[0032] Figure 4A , Figure 4B and Figure 4CThe process of attaching a lens mount 10 to a camera mount 20 is illustrated. The camera mount 20 includes: a camera mount surface 20a; a radially engaging portion 20b that radially engages with the outer peripheral surface of the radially engaging portion 11b of the lens mount 10; and a plurality of (three in this embodiment) claws 20c that protrude radially inward from the radially engaging portion 20b at multiple locations in the circumferential direction. The claws 20c of the camera mount 20 are bayonet claws that can engage with claw bayonets provided on the lens mount 10 and other accessory mounts according to this embodiment. A leaf spring (camera-side force-applying member) 21 is disposed as part of the claw 20c on the image side of each claw 20c. The claw 20c may not have a leaf spring 21.

[0033] like Figure 3 As illustrated, a concave index 14a is provided on the outer peripheral surface of the lens barrel portion 14 of the interchangeable lens 100. The inner surface of the concave shape of the index 14a is colored differently from the outer peripheral surface of the lens barrel portion 14.

[0034] When attaching the lens mount 10 to the camera mount 20, first, align the phase (rotation, angular position, or orientation) of the lens mount 10 with the phase of the camera mount 20, such that the phase of the indicator 14a coincides with the phase of the indicator (not shown) provided on the camera body 200. In this phase, the locking pin 20d faces the locking hole 11c in the central axis direction, and... Figure 8 The illustrated electrical contacts 101 and 205 are in contact with each other.

[0035] When the lens mount 10 is moved toward the camera mount 20 in the central axis direction in this state, as follows: Figure 4A As illustrated, the claw 20c of the camera mount 20 contacts the inclined surface 12d of the engagement portion 12e of the engagement member 12, which is in the initial position (initial state).

[0036] When from Figure 4A When the state causes the lens mount 10 to move further toward the camera mount 20, such as Figure 4B As illustrated, the claw 20c of the camera mount 20 presses against the inclined surface 12d in the direction of the central axis. As a result, the engaging member 12 moves radially inward (to the first side) from its initial position against the force of the compression coil spring 13, and the engaging portion 12e retracts radially inward from the claw 20c.

[0037] When from Figure 4B When the state causes the lens mount 10 to move further toward the camera mount 20, such as Figure 4C As illustrated, the claw 20c of the camera mount 20 passes over the engagement portion 12e of the engagement member 12. Consequently, the engagement member 12 moves radially outward (to the second side) by the force of the compression coil spring 13 and returns to its original position. Figure 4A The original initial position is illustrated, and the engaging portion 12e overlaps axially with the claw portion 20c on the side opposite to the lens mount surface 11a. Simultaneously, the radially engaging portions 20b and 11b engage radially with each other, and the mount surfaces 20a and 11a contact each other. Furthermore, when the engaging member 12 returns to its initial position, the engaging portion 12e contacts the leaf spring 21 on the image side of the claw portion 20c, thereby compressing the leaf spring 21 between the engaging portion 12e and the claw portion 20c. As a result, the lens mount 10 is pulled towards the camera body side by the elastic force generated by the leaf spring 21.

[0038] In this way, the mounting surfaces 20a and 11a are kept in contact with each other (preventing separation of the mounting surfaces 20a and 11a), and the position of the lens mount 10 relative to the camera mount 20 in the central axis direction is fixed. (Refer to the above...) Figure 1 The locking pin 20d enters the locking hole 11c, thereby fixing the lens mount 10 in a circumferential position relative to the camera mount 20. Furthermore, in this state, the electrical contact 101 contacts the electrical contact 205, thereby enabling communication between the lens CPU 110 and the camera CPU 210.

[0039] Therefore, the interchangeable lens 100 can be attached to the camera body 200 by aligning the phase of the index 14a of the interchangeable lens 100 with the phase of the index of the camera body 200, and by pressing the lens mount 10 (interchangeable lens 100) toward the camera mount 20 (camera body 200) in the central axis direction so that the mount surfaces 11a and 20a come into contact with each other. In other words, with the mount surfaces 11a and 20a in contact with each other, the interchangeable lens 100 can be attached to the camera body 200 without rotating the interchangeable lens 100 relative to the camera body 200 about the central axis.

[0040] Figure 1 The claw 20c of the camera mount 20 during attachment of the interchangeable lens 100 to the camera body 200 is illustrated by alternating long and two short dashed lines (imaginary lines or double-dotted lines). During attachment, the claw 11d of the lens mount 10 abuts against the claw 20c of the camera mount 20 in the circumferential direction. That is, the claw 11d serves as a guide (a limiting part for restricting circumferential movement) for guiding movement in the central axis direction by abutting (or contacting) the claw 20c in the circumferential direction during attachment.

[0041] During attachment and before the locking pin 20d enters the locking hole 11c (e.g. Figure 4CAs illustrated, before the mounting surfaces 11a and 20a come into contact with each other, the claw 11d overlaps with the claw 20c in the central axis direction. Properly setting the relationship between the claws 11d and 20c in this way can temporarily determine the position of the replaceable lens 100 during attachment to the camera body 200. As a result, the locking pin 20d can easily engage with the locking hole 11c.

[0042] When the lens mount 10 is removed from the camera mount 20, the user operates a lock release button (not shown) provided on the camera body 200, thereby moving the locking pin 20d toward the camera body and retracting the locking pin 20d from the locking hole 11c. Then, the lens mount 10 can be removed from the camera mount 20 by rotating the replaceable lens 100 relative to the camera body 200 until the engaging member 12 is outside the phase of the claw 20c of the camera mount 20.

[0043] An operating mechanism can be provided in the interchangeable lens 100 to retract the engaging member 12 from its initial position based on user operation of the operating member (operating unit). This configuration allows the lens mount 10 to be removed from the camera mount 20 without rotating the interchangeable lens 100 relative to the camera body 200.

[0044] In this embodiment, the lens mount 10 (mount base 11) includes a locking hole 11c, which engages with the locking pin 20d in the circumferential direction when the mount surfaces 11a and 20a are in contact with each other. However, as Figure 9 As illustrated, the lens mount 10 (mount base 11) may include a concave non-contact portion 11c' that retracts from the locking pin 20d circumferentially (and also radially and further along the central axis) when the mount surfaces 11a and 20a are in contact with each other. In this case, the replaceable lens 100 may include a rotation locking mechanism that prevents circumferential rotation of the lens mount 10 relative to the camera mount 20 when the mount surfaces 11a and 20a are in contact with each other. However, when the camera system is being used while supported by a support member such as a tripod, the rotation locking mechanism may be omitted.

[0045] The non-contact portion 11c′ is not limited to a concave shape, and may have a shape in which a portion of the mounting base 11 is removed in the radial or circumferential direction. Second Embodiment

[0046] Figure 5An example is shown of a lens mount 30 as an accessory mount according to the second embodiment. Those elements in the lens mount 30 according to this embodiment that are common to the lens mount 10 according to the first embodiment will be designated by the same reference numerals as those in the first embodiment, and their descriptions will be omitted. Figure 6A , Figure 6B and Figure 6C Along Figure 5 The process of attaching the lens mount 30 to the camera mount 20 is illustrated in the cross section taken by line BB of the illustrated lens mount 30.

[0047] The lens mount 30 includes a mount base 31 and engaging members 32 that serve as retaining members disposed at multiple locations (three locations in this embodiment) in the circumferential direction of the mount base 31. Similar to the first embodiment, the mount base 31 includes a lens mount surface 11a, a radial fitting portion 11b, a locking hole portion 11c, and claw portions 11d at two locations in the circumferential direction. Also similar to the first embodiment, a contact retainer 15 for retaining the electrical contact 101 is provided inside the mount base 31.

[0048] In this embodiment, such as Figure 6A , Figure 6B and Figure 6C As illustrated, each connecting member 32 is rotatably (movably) held by the mounting base 31 about axis AX.

[0049] More specifically, the leaf spring 33, as an elastic member, is fixed to the mounting base 31, and the leaf spring 33 has a contact surface 33a at its front end that contacts the engaging member 32, thereby allowing it to... Figure 6B Rotation position towards Figure 6A The rotational position applies force to the engaging member 32 in a counterclockwise direction. This counterclockwise direction is opposite to the direction in which the engaging member 32 retracts from the claw 20c of the camera mount 20, as will be described later.

[0050] exist Figure 6A In the current state, the contact surface 32c provided on the base portion 32a of the connecting member 32 contacts the contact surface 31f of the mounting base 31, thereby preventing further counterclockwise rotation of the connecting member 32 and keeping the connecting member 32 in the initial position (initial state).

[0051] The joining member 32 includes a joining portion 32e that protrudes radially outward beyond the base portion 32a. The image-side surface of the joining portion 32e is formed as an inclined surface 32d that is inclined relative to a surface orthogonal to the central axis of the mounting base 31.

[0052] When the lens mount 30 is attached to the camera mount 20, firstly, similar to the first embodiment, the phase of the lens mount 30 is aligned with the phase of the camera mount 20, such that the phase of the index 14a coincides with the phase of the index of the camera body 200. When the lens mount 30 is moved toward the camera mount 20 in the central axis direction in this state, as... Figure 6A As illustrated, the claw portion 20c of the camera mount 20 contacts the inclined surface 32d of the joint portion 32e of the joint member 32.

[0053] When from Figure 6A When the state causes the lens mount 30 to move further toward the camera mount 20, such as Figure 6B As illustrated, the claw 20c of the camera mount 20 presses against the inclined surface 32d in the direction of the central axis. As a result, the engaging member 32 rotates (moves) clockwise about axis AX from its initial position against the force of the leaf spring 33, causing the engaging portion 32e to retract radially inward from the lens mount 30.

[0054] When from Figure 6B When the state causes the lens mount 30 to move further toward the camera mount 20, such as Figure 6C As illustrated, the claw 20c of the camera mount 20 passes over the engagement portion 32e of the engagement member 32. Consequently, the engagement member 32 rotates counterclockwise under the force of the leaf spring 33 to return to its initial position, and the engagement portion 32e axially overlaps the claw 20c on the side opposite the lens mount surface 11a (when viewed from the central axis direction). Simultaneously, the radial engagement portions 20b and 11b radially engage with each other, and the mount surfaces 20a and 11a contact each other. The leaf spring 21 of the camera mount 20 is compressed between the engagement portion 32e of the engagement member 32, which has returned to its initial position, and the claw 20c, and the lens mount 30 is pulled towards the camera mount side by the elastic force generated by the leaf spring 21.

[0055] In this way, the mounting surfaces 20a and 11a are maintained in contact with each other, and the position of the lens mount 30 relative to the camera mount 20 in the central axis direction is fixed. (Refer to the first embodiment) Figure 1 The locking pin 20d enters the locking hole 11c, thereby fixing the lens mount 30 in a circumferential position relative to the camera mount 20. Furthermore, in this state, as referenced in the first embodiment... Figure 8 The electrical contact 101 contacts the electrical contact 205, thereby enabling communication between the lens CPU 110 and the camera CPU 210.

[0056] As described above, the interchangeable lens can be attached to the camera body by aligning the phase of the index 14a of the interchangeable lens 100 with the phase of the index of the camera body 200, and pressing the lens mount 30 (interchangeable lens) toward the camera mount 20 (camera body) in the central axis direction so that the mount surfaces 11a and 20a contact each other. In other words, with the mount surfaces 11a and 20a in contact, the interchangeable lens can be attached to the camera body without rotating the interchangeable lens relative to the camera body about the central axis.

[0057] Compared to conventional methods that require rotating the interchangeable lens relative to the camera body as a recording device, the above embodiments make it easier to attach the interchangeable lens as an accessory device.

[0058] In various embodiments, the accessory mount includes an accessory mount surface and a retaining member, the accessory mount surface contacting the camera mount surface disposed on the camera mount in the central axis direction. The retaining member retracts from the camera mount when pressed by the camera mount and then returns to a state of overlapping with the camera mount when viewed from the central axis direction, thereby maintaining the state of contact between the accessory mount surface and the camera mount surface.

[0059] In the first and second embodiments, the engaging members 12 and 32 are stressed by springs 13 and 33 against the mounting bases 11 and 31. Alternatively, the engaging members can be formed of members whose engaging portions are elastically deformable, and the engaging portions pressed by the claws of the camera mount can elastically deform to move (retract) relative to the claws. This structure can omit springs 13 and 33. The elastically deformable engaging portions can be integrated with the base portion serving as the mounting base.

[0060] The lens mount configurations described in the various embodiments can also be applied to accessory mounts on accessory devices other than interchangeable lenses that are attachable to and detachable from the camera body. Examples of such accessory devices include adapters (intermediate adapters) that are attachable and detachable between the camera and lens device, extenders, and caps for protecting the camera mount. The adapter may have the function of converting communication methods between the camera and lens device, or may include optical elements such as lenses or filters.

[0061] While this disclosure has been described with reference to embodiments, it should be understood that this disclosure is not limited to the disclosed embodiments. The scope of the appended claims should be given the broadest interpretation to cover all such modifications and equivalent structures and functions.

[0062] Various embodiments may provide accessory mounting parts that can be easily attached to camera mounting parts.

Claims

1. An accessory mounting member capable of being attached to and detached from a camera mount, the accessory mounting member comprising: Base section; as well as The movable part is movable relative to the base part. The feature is that, when the accessory mounting is attached to the camera mounting, the movable part moves to a first side by contacting a portion of the camera mounting, and then moves to a second side opposite to the first side, thereby overlapping with the portion when viewed from the central axis direction of the accessory mounting.

2. The accessory mounting component according to claim 1, characterized in that, The first side and the second side are respectively one side and the other side in the radial direction of the base portion.

3. The accessory mounting component according to claim 1, characterized in that, The base portion includes an accessory mounting surface, which contacts the camera mounting surface of the camera mounting component when the accessory mounting component is attached to the camera mounting component.

4. The accessory mounting component according to claim 3, characterized in that, When the accessory mounting is attached to the camera mounting, the movable part overlaps with the portion when viewed from the central axis direction, thereby maintaining the state in which the surface of the accessory mounting is in contact with the surface of the camera mounting.

5. The accessory mounting component according to claim 1, characterized in that, The portion includes the claw portion provided on the camera mount.

6. The accessory mounting component according to claim 1 further includes a force-applying unit configured to apply force toward the movable portion in the second direction.

7. The accessory mounting component according to claim 6, characterized in that, When the accessory mounting part is attached to the camera mounting part, the movable part moves toward the first side against the force applied by the force-applying unit by contacting the portion of the camera mounting part.

8. The accessory mounting component according to claim 1, characterized in that, The accessory mounting component is attached to the camera mounting component by moving toward the camera mounting component in the direction of the central axis without rotating about the central axis.

9. The accessory mounting component according to claim 1, characterized in that, Each of the camera mount and the accessory mount includes an electrical contact. When the accessory mounting part is attached to the camera mounting part, the corresponding electrical contacts of the camera mounting part and the accessory mounting part are in contact with each other without contacting other electrical contacts.

10. The accessory mounting component according to claim 1, further comprising an operating mechanism configured to move the movable part according to user operation.

11. The accessory mounting component according to any one of claims 1 to 10, characterized in that, The base portion includes a guide portion configured to guide movement of the portion in the direction of the central axis when the accessory mount is attached to the camera mount.

12. The accessory mounting component according to claim 11, characterized in that, With the accessory mounting part attached to the camera mounting part, the guide portion is disposed on the side opposite to the accessory mounting surface provided on the accessory mounting part in the central axis direction.

13. An accessory device, comprising: Accessory mounting component according to any one of claims 1 to 12; as well as Optical components.

14. An accessory device, comprising: Accessory mounting parts according to any one of claims 1 to 12, The accessory device is characterized in that it can be attached to the lens device and detached from the lens device.

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