JP4554638B2 - Device for one-handed camera operation - Google Patents

Description

  The present invention relates to an accessory device for a camera having a lens barrel provided with a ring-shaped operation member, and more particularly to a one-hand operation device for operating the ring-shaped operation member with one hand.

  2. Description of the Related Art Conventionally, some lens barrels of a camera are provided with a plurality of ring-shaped operation members such as a zoom ring or a focus ring. When shooting with such a camera, hold the camera grip with your right hand and press the shutter release button with your right index finger. The ring-shaped operating member is rotated with the finger of the left hand.

  When shooting with the camera mounted on a tripod, the camera body is not placed on the left palm, but the rest is the same. Hold the grip with the right hand, press the shutter release button, and turn the ring-shaped operating member with the left hand. This is very inconvenient when you want to use the left hand, such as operating the reflector with the left hand.

  For example, a mechanism that enables one-handed operation with only the right hand in a camera-integrated VTR is described in Patent Document 1 below. By placing a long lever between the cam plate that controls the zoom lens group placed at the tip of the camera and the operation member placed near the hand that holds the camera, it is mechanically connected. The zoom operation can be performed while holding with only the right hand.

  Patent Document 2 below shows a small digital camera in which all operation members are arranged on the right side from the center line of the camera body when viewed from the back side of the camera. This also allows various operation buttons to be operated while holding the camera with the right hand.

Japanese Patent Laid-Open No. 08-101332 JP 2002-354315 A

  However, the countermeasure proposal according to the aforementioned patent document must be configured as a part of the camera mechanism from the design stage of the camera. Also, like a single-lens reflex camera, the lens barrel is located at the center of the camera, and you can manually operate the zoom ring or focus ring provided on the lens barrel while holding the camera with your right hand. is not.

  In view of the above problems, the present invention has a lens barrel portion that holds the camera with the right hand even when the lens barrel portion is arranged at the center of the camera, such as a camera using a photographic film or a digital single lens reflex camera. An apparatus capable of manually operating a zoom ring or a focus ring provided in the apparatus is provided.

  A base member used by being attached to a camera having a ring-shaped operation member in a lens barrel portion, and an operation drum rotatably supported on a rotation shaft held by the base member. The ring-shaped operation member can be rotated by bringing the cylindrical surface of the operation drum into contact with the outer peripheral surface of the ring-shaped operation member. When the base member is attached to the bottom of the camera, the operation drum is disposed between the grip portion of the camera and the ring-shaped operation member. When making it respond | correspond to the said several ring-shaped operation member, the said operation drum is attached so that a slide movement is possible on the rotating shaft of this operation drum. Alternatively, a plurality of the operation drums are provided. The plurality of operation drums may have the same diameter or may have different diameters. Further, two or more cylindrical surfaces having different diameters may be provided. The operation drum is provided with three cylindrical surfaces having different diameters at the center, and is slid on the rotating shaft so that the three cylindrical surfaces sequentially contact the outer peripheral surfaces of the three ring-shaped operation members. Also good.

  When the operation drum slides on the rotation shaft, the operation drum is positioned in contact with a stopper provided integrally with the rotation shaft. Alternatively, a positioning member that can be moved forward and backward with respect to the inner surface of the shaft hole of the operation drum by a spring is provided inside the operation drum, and is positioned by being removably engaged with a groove provided on the circumferential surface of the rotating shaft. To be. The positioning member may be a convex portion provided integrally with the leaf spring. The operation drum can be in a position where the contact with the outer peripheral surface of the ring-shaped operation member is released by sliding on the rotation axis of the operation drum. Alternatively, one end of the rotating shaft held by the base member is provided so as to be rotatable with respect to the base member, and the contact between the operation drum and the ring-shaped operation member is released by rotating about the one end. To do.

  The base member includes a lock member that abuts against the operation drum by a pressing operation to prevent inadvertent rotation of the operation drum.

  A slide member may be used instead of the operation drum. In this case, when the base member is attached to the bottom of the camera, the operation part of the slide member is arranged so as to be positioned between the grip part of the camera and the ring-shaped operation member. The base member includes a lock member that abuts against the slide member by a pressing operation to prevent inadvertent movement of the slide member.

  With the one-hand operation device according to the present invention, a zoom ring provided on the lens barrel even if the lens barrel is located in the center of the camera, such as a camera using a photographic film or a digital single lens reflex camera. Alternatively, operations such as the focus ring can be performed only with the right hand holding the camera. As a result, it is possible to take a picture while handling the reflex plate or the like with the left hand.

  Hereinafter, an apparatus for one-handed operation of a digital camera according to an embodiment of the present invention will be described. As shown in FIG. 1, the one-hand operation device 10 includes a base member 11, an operation drum 12, a tripod screw 13, and a lock member 14. The operation drum 12 is rotatably attached by a shaft 15 fixed to a support portion 11 a provided integrally with the base member 11. The cylindrical surface 12a of the operation drum 12 is made of an elastic material.

  The lock member 14 is attached to the base member 11 by a shaft (not shown), and the spring 16 biases the lock member 14 in a direction in which the pressing surface 14 a of the lock member 14 is separated from the cylindrical surface 12 a of the operation drum 12. In the lock member 14 urged by the spring 16, a stopper portion 14e provided on the lock member 14 abuts against the base member 11 and holds a gap between the pressing surface 14a and the cylindrical surface 12a. Further, the base member 11 has a mounting hole 11b through which a tripod screw 13 as a fixing member for fixing the one-hand operation device 10 to the digital camera 3 and a tripod for fixing the one-hand operation device 10 to the tripod. A screw hole 11c is provided.

  As shown in FIG. 2, the one-hand operation device 10 to which the digital camera 3 is attached has a tripod screw hole in which a tripod screw 13 is provided at the bottom of the digital camera 3 through an attachment hole 11 b provided in the base member 11. Are firmly fixed to the digital camera 3 by being screwed onto and tightened. At this time, the operation drum 12 is disposed between the lens barrel portion 6 and the grip portion 3g of the digital camera 3, and the cylindrical surface 12a is pressed against the outer peripheral surface of the zoom ring 6a provided in the lens barrel portion 6.

  As shown in FIG. 3, the one-hand operation device 10 fixed to the digital camera 3 is attached to the tripod 90 by screwing a tripod screw 90 a of a tripod 90 into the tripod screw hole 11 c provided in the base member 11. .

  Next, the operation of the one-hand operation device 10 will be described. While holding the grip portion 3g of the digital camera 3 to which the one-hand operation device 10 is attached, the operation drum 12 is rotated with the ring finger or another finger. The surface of the zoom ring 6a is made of an elastic material in the same manner as the cylindrical surface 12a. The rotation of the operation drum 12 is transmitted to the zoom ring 6a, and the zoom ring 6a rotates to allow the zoom operation of the photographing lens.

  As shown in FIG. 4, after the angle of view of the photographic lens is determined by operating the operation drum 12, for example, when the lock member 14 is pushed up using a little finger, the pressing surface 14 a of the lock member 14 becomes the cylinder of the operation drum 12. The zoom ring 6a is prevented from rotating carelessly by being pressed against the surface 12a.

  In the one-hand operation device 20 shown in FIG. 5, the cylindrical surface 22a of the operation drum 22 is formed in a mountain-shaped knurl shape. The pressing surface 24a of the lock member 24 is also formed in the same mountain-shaped knurled shape.

  As shown in FIG. 6, the one-hand operation device 20 is used by being attached to a digital camera 4 in which the surface of the zoom ring 7a is formed in a mountain-shaped knurl shape. In the one-hand operation device 20, since the zoom ring 7a and the cylindrical surface 22a are knurled, the operation drum is less likely to slip than when the operation drum 12 having the cylindrical surface 12a made of an elastic material is used. The operation power of 22 is light.

  As shown in FIG. 7, after the angle of view of the photographic lens is determined by operating the operation drum 22, the lock member 24 is pushed up using, for example, a little finger, and the pressing surface 24a of the lock member 24 is moved to the cylindrical surface of the operation drum 22. The zoom ring 7a is prevented from rotating inadvertently by knurling with 22a. Since the pressing surface 24a is formed in a mountain-shaped knurled shape, the operation drum 22 is prevented from rotating only by pushing up the lock member 24 with a lighter amount of force than when the operation drum 12 is used.

  The one-hand operation device 30 according to another embodiment shown in FIG. 8 includes a base member 31, a slide member 32, a tripod screw 13, and a lock member 34. The configuration of the one-hand operation device 30 will be described with reference to the exploded view shown in FIG. Here, the tripod screw 13 and the tripod screw hole 31b are the same as in the above-described embodiment. The support frame 35 is fixed to the base member 31 with screws 37. The slide member 32 includes a slide portion 32a that is slidably supported by the support frame 35, and an operation portion 32b. A contact portion 32c that contacts the zoom ring 6a of the slide portion 32a is made of an elastic material. Yes.

  The lock member 34 is attached to the base member 31 by a shaft (not shown), and the spring 16 biases the lock member 34 in a direction in which the lock member 34 is separated from the slide member 32. The lock member 34 urged by the spring 16 has a stopper 34 e provided on the lock member 34 in contact with the base member 31 so that a gap is formed between the pressing protrusion 34 a provided on the lock member 34 and the slide member 32. Hold.

  As shown in FIG. 10, the one-handed operation device 30 attached to the digital camera 3 is firmly fixed to the digital camera 3 by being screwed into a tripod screw hole of the digital camera 3 and tightened. Is done. At this time, the operation portion 32 b of the slide member 32 is disposed between the lens barrel portion 6 and the grip portion 3 g of the digital camera 3, and the contact portion 32 a of the slide member 32 is a zoom ring provided on the lens barrel portion 6. 6a.

  While holding the grip portion 3g of the digital camera 3 to which the one-hand operation device 30 is attached, the operation portion 32b is slid with the ring finger or another finger. The surface of the zoom ring 6a is made of an elastic material like the contact portion 32c, and the movement of the slide member 32 is transmitted to the zoom ring 6a, and the zoom ring 6a rotates to allow the zoom operation of the photographing lens. Similarly to the above-described embodiment, after the angle of view of the photographing lens is determined by operating the slide member 32, the lock member 34 is pushed up by using, for example, a little finger, and the pressing surface 34a of the lock member 34 is moved to the bottom surface of the slide member 32. So that the zoom ring 6a does not rotate inadvertently.

  The one-hand operation device 40 shown in FIG. 11 is obtained by eliminating the support frame 35 of the above-described one-hand operation device 30 and integrally providing a dovetail groove 41 a in the base member 41. As shown in the exploded view of FIG. 12, the bottom portion 42d of the sliding portion 42a of the sliding member 42 has a shape that fits into the dovetail groove 41a. This eliminates the need for the support frame 35, thereby reducing the number of parts and eliminating the need for assembly work. The other members are the same as those of the one-hand operation device 30, and the operation thereof is also the same.

  As shown in FIG. 13, the one-hand operation device 50 is obtained by removing the slide member 32 from the one-hand operation device 30 and replacing the slide member 52 with a contact portion 52c formed in a knurled shape. Other than 52, it is the same as the above-mentioned one-hand operation device 30. As shown in FIG. 14, the one-hand operation device 50 attached to the digital camera 4 slides the operation portion 52 b with the ring finger or another finger while holding the grip portion 4 g of the digital camera 4 in the same manner as the one-hand operation device 30. The zoom ring 6 can be operated by moving the zoom ring 6.

  The one-hand operation device 60 shown in FIG. 15 is obtained by removing the slide member 42 from the one-hand operation device 40 and replacing it with a slide member 62 having a contact portion 62c formed in a knurled shape. This is the same as the one-hand operation device 40, and the operation and effect thereof are also the same.

  The one-hand operation device 70 shown in FIG. 16 is provided with an external strobe attachment member 76 on a base member 71 so that an external strobe 77 can be attached. The external strobe attachment member is, for example, a tripod screw. The external strobe attachment member 76 can be attached not only to the base member 71 but also to all the base members 11, 31, 41, 51 or 61 described above.

  The embodiment described above is a one-hand operation device that can operate the zoom ring provided on the lens barrel portion with the right hand while holding the grip portion of the digital camera with the right hand. It is not limited to a ring, and any ring-shaped operation member provided on the lens barrel of a digital camera can be used.

  For example, the same applies to a focus ring instead of a zoom ring, and as shown in FIG. 17, the present invention can be applied to a one-hand operation device for operating a focus ring. In the one-hand operation device 80, the cylindrical surface 82a of the operation drum 82 is in contact with the focus ring 8b of the digital camera 3.

  The one-hand operation device 80 is obtained by replacing the operation drum 12 in the one-hand operation device 10 with the operation drum 82 that comes into contact with the focus ring 8b, but the other one-hand operation devices 20, 30, 40 described above. Needless to say, the operation drum or the slide member can be replaced with the focus ring.

  Here, as shown in FIG. 18, two operation drums may be provided in one zoom ring. Two shafts 15 and 115 are provided on the support portion 111a of the base member 111, and an operation drum 12 and an operation drum 112 having a diameter larger than that of the operation drum 12 are attached thereto. The operation drum 112 can turn the zoom ring 6a faster than the operation drum 12, but the operation drum 12 can easily adjust the zooming accordingly.

  Also, as shown in FIG. 19, two operation drums having the same diameter are provided so that both the zoom ring and the focus ring can be operated. The operation drum 12 and the operation drum 82 are provided on the base member 11, and the drum 12 is brought into contact with the zoom ring 6a, and the operation drum 82 is brought into contact with the focus ring 6b. At this time, it is preferable to provide two lock members, a lock member 114 for the zoom ring 6a and a lock member 14 for the focus ring 6b.

  Alternatively, as shown in FIG. 20, the operation drum 122 is slidable on the shaft 125 so that it can selectively come into contact with either the zoom ring 8 a or the focus ring 8 b provided on the digital camera 5. As shown in FIG. 21, when the operating drum 122 is brought into contact with the focus ring 8b, the operating drum 122 is rotated toward the support portion 11a, and when it is brought into contact with the zoom ring 8a as shown in FIG. Then, the operation drum 122 is moved to the stopper 125a of the shaft 125 and rotated. In this way, both the zoom ring 8a and the focus ring 8b can be operated by one operating drum 122.

  As shown in FIG. 23, when there is a sufficient interval between the zoom ring 8a and the focus ring 8b so that the operation drum 122 does not contact either the zoom ring 8a or the focus ring 8b, the operation drum 122 is stopped at that position. By doing so, it is possible to prevent the operation drum 122 from contacting either the zoom ring 8a or the focus ring 8b.

  As a positioning method, a V-groove 125 c is provided in the central portion of the shaft 125 along the cylindrical surface of the shaft 125, and a positioning member is provided inside the operation drum 122. The click ball 123, which is a positioning member, is provided with a hole 122c in the shaft hole 122b of the operation drum 122 and inserted together with the coil spring 124, and is attached to the inner wall surface of the shaft hole 122b by the coil spring 123 so as to be able to advance and retreat. The operation drum 122 is positioned by the click ball 123 being detachably engaged with a V-groove 125 c provided on the circumferential surface of the shaft 125.

  As shown in FIG. 24A and an arrow sectional view (b), the operation drum 126 may use a leaf spring as the positioning member. The leaf spring 127 has a convex portion 127 c narrowed in a mountain shape at one end, is formed in a substantially U shape, and is inserted into a mounting hole 126 c provided in the operation drum 126. In a state where the leaf spring 127 is correctly set in the attachment hole 126c, the central portion of the convex portion 127c protrudes into the shaft hole 126d. The protruding portion engages with the V groove 125C to stop the operation drum 126 at a predetermined position. In a position where it does not engage with the V-groove 125C, this protruding portion is also pushed back into the mounting hole 126C.

  Further, as shown in FIG. 25A, one end of the shaft 132 that supports the operation drum 122 may be pivotally supported by the rotation shaft 131a on the support portion 131 of the base member. As a result, the shaft 132 can be rotated in a direction away from the lens barrel 9, and the operation drum 122 is connected to the ring-shaped operation members 9a, 9b, 9c such as a zoom ring and a focus ring provided on the lens barrel 9. The contact can be released regardless of which contact is made (see FIG. 25B).

  The operation drum 135 shown in FIG. 26 has a cylindrical surface 135a having a small diameter and a cylindrical surface 135b having a large diameter. The operation drum 135 is in contact with the ring-shaped operation member 136b having a small diameter among the ring-shaped operation members provided on the lens barrel 136 with the cylindrical surface 135b. Can be operated. As shown in FIG. 27, when the operation drum 135 is slid and the cylindrical surface 135a is brought into contact with the ring-shaped operation member 136a, the operation drum 135 can operate the ring-shaped operation member 136a having a large diameter.

  The operation drum 138 shown in FIG. 28 has three cylindrical surfaces 138a, 138b, and 138c. The central cylindrical surface 138b is larger than the cylindrical surfaces 138a and 138c. The lens barrel 139 is provided with ring-shaped operation members 139a, 139b, and 139c, and the center ring-shaped operation member 139b is the largest. The operation drum 138 includes the click ball 123 and the coil spring 124 shown in FIG. 23, and the shaft 125 is provided with the V groove 125C. Therefore, the operation drum 138 has a central cylindrical surface 138b in contact with the ring-shaped operation member 139b. It is positioned at the position to do.

  As shown in FIG. 29, when the operation drum 138 is brought closer to the support portion 11a side of the base member 11, the cylindrical surface 138c comes into contact with the ring-shaped operation member 139c. As shown in FIG. 30, when the operation drum 138 is brought closer to the stopper 125a side of the shaft 125, the cylindrical surface 138a contacts the ring-shaped operation member 139a. Here, the cylindrical surfaces 138a and 138c do not necessarily have the same diameter, and may be in contact with the ring-shaped operation members 139a and 139c.

  Furthermore, the lens barrel 141 of the digital camera shown in FIG. 31 is provided with ring-shaped operation members 141a, 141b, 141c, and 141d. Two operation rings 135 are attached to the shaft 145 provided on the base member 11 of the one-hand operation device while changing the direction. When a plurality of ring-shaped operation members are provided as described above, this can be dealt with by providing a plurality of operation drums having a plurality of cylindrical surfaces.

  In the above-described embodiment, the V-groove is used for positioning the operation drum. However, the groove provided on the shaft is not limited to the V-groove, and may be a U-groove or other cross-sectional groove. It may be.

  Although the embodiment has been described using a digital camera, it may be a camera for a silver salt film, and any camera provided with a ring-shaped operation member in a lens barrel portion may be used. It is possible to employ the present invention.

It is a perspective view of the apparatus for one hand operation which is embodiment of this invention. It is a perspective view which shows the state which fixed the apparatus for one hand operation which is embodiment of this invention to the digital camera. It is a perspective view which shows the state which attached the apparatus for one hand operation fixed to the digital camera to the tripod. It is a perspective view which shows the state which locked the zoom ring. It is a perspective view of the one-hand operation apparatus using the operation drum which made the engaging part the knurled shape. It is a perspective view which shows the state which fixed the apparatus for one hand operation of FIG. 5 to the digital camera. It is a perspective view which shows the state which locked the zoom ring of the one-hand operation apparatus of FIG. It is a perspective view of the one-hand operation apparatus which is another embodiment. It is an exploded view of another one-hand operation device. It is a perspective view which shows the state which fixed another one-hand operation apparatus to the digital camera. It is a perspective view of another one-hand operation apparatus which provided a dovetail groove in a base member as a guide of a slide member. FIG. 6 is an exploded view of another one-hand operation device in which a dovetail groove is provided in a base member as a guide for a slide member. It is a perspective view of another one-hand operation apparatus using the slide member which made the engaging part knurled. It is a perspective view which shows the state which fixed another one-hand operation apparatus shown in FIG. 13 to the digital camera. It is a perspective view of another one-hand operation apparatus using the base member which provided the slide member which made the engagement part the knurled shape, and the dovetail groove. It is the figure which provided the external strobe attachment member in the base member. It is a perspective view which shows the state which fixed the apparatus for one hand operation which employ | adopted this invention to the focus ring to the digital camera. It is explanatory drawing of an operation drum when two large and small operation drums are attached. It is a perspective view which shows the state which fixed the apparatus for one hand operation provided with the operation drum for zoom rings, and the operation drum for focus rings to the digital camera. It is a perspective view which shows the state which fixed to the digital camera the apparatus for one hand operation provided with the operation drum which slides. It is explanatory drawing of the operation drum which slides. It is explanatory drawing of the operation drum which slides. It is explanatory drawing of the positioning member of the operation drum which slides. It is explanatory drawing of the positioning member of the operation drum which slides. It is explanatory drawing when the axis | shaft which supports an operation drum is rotated and the contact with the ring-shaped operation member of a camera is made releasable. It is explanatory drawing of the operation drum which has two large and small cylindrical surfaces. It is explanatory drawing of the operation drum which has two large and small cylindrical surfaces. It is explanatory drawing of the operation drum which has three large and small cylindrical surfaces. It is explanatory drawing of the operation drum which has three large and small cylindrical surfaces. It is explanatory drawing of the operation drum which has three large and small cylindrical surfaces. It is explanatory drawing when a plurality of operation drums having a plurality of cylindrical surfaces are provided.

Explanation of symbols

3, 4, 5 Digital camera 3g, 4g, 5g Grip part 6, 7, 8, 9, 136, 139, 141 Lens barrel part 6a, 7a, 8a Zoom ring 6b, 7b, 8b Focus ring 9a, 9b, 9c , 136a, 136b, 139a, 139b, 139c, 141a, 141b, 141c, 141d Ring-shaped operation member 10, 20, 30, 40, 50, 60, 70, 80 One-hand operation device 11, 31, 41, 51, 61 , 71, 81, 111 Base member 12, 22, 82, 112, 122, 126, 135, 138 Operation drum 13 Tripod screw 14, 24, 34, 114 Lock member 15, 115, 125, 132, 145 Shaft 32, 42 , 52, 62 Slide member 35 Support frame 123 Click ball 124 Coil spring

Claims (15)

A base member attached to a camera having a ring-shaped operation member on the lens barrel;
The rotary shaft held by the base member is rotatably and slidably supported by the shaft, contacts the outer peripheral surface of the ring-shaped operation member, and transmits rotation by manual operation to the ring-shaped operation member. An operation drum for rotating the ring-shaped operation member,
An apparatus for one-hand operation, wherein when the base member is attached to the camera, the operation drum is positioned between a grip portion of the camera and the ring-shaped operation member. The operating drum is common according to claim 1 camera one-handed operation for apparatus, wherein the provided plurality on the rotary shaft. 3. The apparatus for operating a one-handed camera according to claim 2, wherein the plurality of operation drums have the same diameter . 3. The one-hand operation device for a camera according to claim 2 , wherein the plurality of operation drums have two or more types of diameters . The one-handed operation of a camera according to claim 1 or 2, wherein the operation drum includes two or more cylindrical surfaces having different diameters that contact the outer peripheral surface of the ring-shaped operation member and transmit a rotational force. Equipment. The operation drum has three cylindrical surfaces having the largest diameter at the center, slides on the rotating shaft, and the three cylindrical surfaces sequentially contact with the outer peripheral surfaces of different ring-shaped operation members. The apparatus for one-handed operation of a camera according to claim 5 . 7. The apparatus for one-handed operation of a camera according to claim 1 , wherein the operation drum is slidably moved on the rotation shaft and is positioned in contact with a stopper provided on the rotation shaft . The operation drum includes a positioning member attached to a rotation shaft hole inner surface of the operation drum so as to be able to advance and retreat by a spring provided inside the operation drum.
8. The camera according to claim 1, wherein the operation drum is positioned by engaging the positioning member with a groove provided on a circumferential surface of the rotating shaft so as to be insertable / removable . One-handed device. 9. The apparatus for one-handed operation of a camera according to claim 8, wherein the positioning member is a convex portion provided integrally with a leaf spring . The camera for one-handed operation of a camera according to any one of claims 1 to 9, wherein the operation drum slides on the rotation shaft and is not in a position to transmit the rotational force to the ring-shaped operation member. apparatus. The one-hand operation device according to any one of claims 1 to 9, wherein the base member includes a lock member that abuts against the operation drum by a pressing operation and prevents inadvertent rotation of the operation drum . The rotating shaft has one end held by the base member so as to be rotatable with respect to the base member, and rotates around the one end to release contact between the operation drum and the ring-shaped operation member. The device for one-handed operation of a camera according to any one of claims 1 to 9 . A base member attached to a camera having a ring-shaped operation member on the lens barrel;
A rotating shaft that is held by the base member and is rotatable about one end side held by the base member;
The ring-shaped operation member is rotatably supported on the other end side of the rotation shaft and is disposed between the grip portion of the camera and the ring-shaped operation member when the base member is attached to the camera. The rotation by manual operation is transmitted to the ring-shaped operation member by contacting the outer peripheral surface of the ring-shaped operation member, and the ring-shaped operation member is rotated. An operation drum whose contact is released,
An apparatus for one-handed operation characterized by comprising: A base member attached to a camera provided with a ring-shaped operation member in the lens barrel, and a slide member provided on the base member and moved by manual operation;
When the base member is attached to the camera, the operation portion of the slide member is located between the grip portion of the camera and the ring-shaped operation member, and the slide portion of the slide member is the outer periphery of the ring-shaped operation member. Touch the surface,
An apparatus for one-hand operation, characterized in that when the operation unit is operated and the slide member slides, the moving force is transmitted to the ring-shaped operation member to rotate the ring-shaped operation member.   15. The one-hand operation device according to claim 14, wherein the base member includes a lock member that abuts against the slide member by a pressing operation to prevent inadvertent movement of the slide member.

Images