JP4590892B2 - Camera system and interchangeable lens - Google Patents

Description

  The present invention relates to a camera system and an interchangeable lens having a focus preset function capable of instantaneously focusing on a preset focus position by a specific operation.

In recent years, cameras equipped with an automatic focus adjustment device (autofocus) have become widespread, and it has become possible for photographers to easily take pictures without having to perform troublesome focusing, contributing to the expansion of photographers. ing.
On the other hand, in autofocus shooting, it takes a certain amount of time to measure the distance, and if the desired subject does not exist at the shooting position, the focusing operation cannot be performed. In some cases, the chance of shooting was missed.

For example, when shooting with a batter aiming at baseball shooting, if the 1st runner steals the 2nd baseball, it is necessary to focus the camera toward the 2nd base. When shooting in this way, the camera is often fixed on a tripod, so the distance you want to focus on is fixed. If there is, it is very useful.
In that case, it is conceivable that the position of the focal point at a specific distance is set in advance and returned to that position when necessary.

  Therefore, a lens barrel described in Patent Document 1 has been proposed. The lens barrel of this publication stores in advance the automatic focus or manual focus position in the storage means (hereinafter referred to as preset), and the position stored at the moment the desired subject enters the shooting position. The lens barrel is driven until the in-focus position is reproduced without performing a distance measuring operation (hereinafter referred to as “go home”) (focus preset function). For this reason, it is not necessary to perform distance measurement, and quick focusing can be performed on a desired subject.

However, in the lens barrel described in Patent Document 1, it is possible to focus preset a focal position at a specific distance in one place. For example, in the above example, a pitcher or an outfielder other than 2 mm is used. When focusing on the camera, there was no choice but to rely on autofocus, and there was a limit to dealing with sudden changes in the situation, which hindered the shooting of moths.
In the same way, each time the composition (zoom position) is changed, such as when a close-up of the batter, the pitcher and batter are displayed on the screen, or the entire view of the stadium is displayed, the composition (zoom position) is re-determined. As a result, it has also hindered the shooting of the frog.
Japanese Patent Laid-Open No. 06-43353

  An object of the present invention is to provide a camera system and an interchangeable lens capable of instantaneously adjusting a focal position and a focal distance to a plurality of subjects.

The present invention solves the above problems by the following means. In addition, in order to make an understanding easy, although the code | symbol corresponding to the Example of this invention is attached | subjected and demonstrated, it is not limited to this .

The invention of claim 1 is an interchangeable lens that can be attached to and detached from the camera body (100), and at least a part of the movable lenses (L1, L2) is movable along the optical axis direction; A drive unit (1, 10) for driving the movable lens, and a movable lens position detection unit (3, 30, 35) for detecting a focal position of the movable lens and detecting a zoom position when the focal position is detected. ), Movable lens position storage means (7, 7a, 7b, 61, 61a, 61b, 22) capable of storing a plurality of focal positions of the movable lens detected by the movable lens position detector, and the movable Movable lens return means (91, 91) that drives and returns the movable lens to the focal position selected from the plurality of focal positions stored in the lens position storage means. , 91b, 22) and a, the movable lens return means, the zoom position when the movable lens return means has been operated, when was the telephoto side than the zoom position when storing the focal position The interchangeable lens (250) is characterized in that the movable lens is not driven.

According to a second aspect of the present invention, in the interchangeable lens according to the first aspect, the movable lens position storage means (7, 7a, 7b, 61, 61a, 61b, 22) (the position of the movable lens (L1, L2)). The stored image captured at the time of storing the image and / or the image corresponding to the stored image and stored in the movable lens position storage means (7, 7a, 7b, 61, 61a, 61b, 22) A plurality of stored time equivalent images taken with the same focal length and shooting distance at the time of storing the position of the movable lens are stored in the movable lens position storage means (7, 7a, 7b, 61, 61a, 61b, 22). An interchangeable lens ( 250 ) comprising an image storage unit (5, 5a, 5b) for storing the movable lens in association with the position of the movable lens.
According to a third aspect of the present invention, in the interchangeable lens according to the second aspect, the movable lens position storage means (7, 7a, 7b, 61, 61a, 61b, 22) and the image recording unit (5, 5a, 5b) Is an interchangeable lens ( 250 ) characterized by being a non-volatile memory.
According to a fourth aspect of the present invention, in the interchangeable lens according to the second or third aspect, the movable lens position storage means (7, 7a, 7b, 61, 61a, 61b, 22) and the image recording unit (5, 5a, 5b) is an interchangeable lens ( 250 ) comprising a storage information transmission unit that transmits the storage information stored in at least one of 5b) to the camera body (100).
According to a fifth aspect of the present invention, in the interchangeable lens according to any one of the second to fourth aspects, the movable lens (L1, L2) return means (91, 91a, 91b, 22) stores the movable lens position. An interchangeable lens ( 250 ) comprising a return operation member for selecting one of a plurality of positions stored in the means (7, 7a, 7b, 61, 61a, 61b, 22).
According to a sixth aspect of the present invention, in the interchangeable lens according to any one of the second to fifth aspects, the movable lens (L1, L2) is at least one of a focusing lens and a variable power lens (L2). This is an interchangeable lens ( 250 ).
A seventh aspect of the present invention is a camera system including the interchangeable lens according to any one of the first to sixth aspects.

According to the present invention, the following effects can be obtained.
(1) A movable lens position storage unit capable of storing a plurality of movable lens positions detected by the movable lens position detection unit at an arbitrary time point, and a selection from a plurality of positions stored in the movable lens position storage unit For example, when the movable lens is a focusing lens, the movable lens is returned to the focus position even when shooting at a different focus position. By the operation, it is possible to quickly shoot subjects at a plurality of desired focus positions. In addition, when the movable lens is a variable magnification lens, if a plurality of zooming compositions are stored in advance, even when shooting with a different composition, shooting with a plurality of desired compositions can be performed by a return operation. It can be done quickly.

(2) Since the storage information display unit for displaying the images stored in the image storage unit in association with the positions of the plurality of movable lenses stored in the movable lens position storage unit is provided, the movable lens is a focusing lens. In this case, the desired focus position can be selected without fail. In addition, when the movable lens is a variable power lens, a desired composition (zoom position) can be definitely selected.

The purpose of allowing the focal position and focal length to be instantaneously adjusted to a plurality of subjects is realized by storing a plurality of movable lens positions.
[ Reference Example 1]

FIG. 1 is a diagram illustrating the external appearance of a part of an interchangeable lens and a camera body of a camera system in Reference Example 1.
The camera system in the present reference example is a so-called digital still camera system that electronically captures an image obtained by the interchangeable lens 200, and a camera body 100 that does not include the photographing lens, and an interchangeable that can be attached to and detached from the camera body. This is a so-called single-lens reflex camera system having a lens 200.

Note that the present invention is not limited to the single-lens reflex camera system as in the present reference example , but can also be used for an integrated camera in which the taking lens cannot be replaced. Therefore, in the claims and the present specification, the term “camera body” means a camera body that does not include a photographing lens in a single-lens reflex camera system, and the term “camera” simply refers to a camera body in a single-lens reflex camera system. It is used in a broad sense to include any of the integrated cameras that cannot replace the taking lens.

The storage set operation member 61 is an operation member that is operated when storing the position of the focus lens group L1 (see FIG. 2).
The storage set operation member 61 has four separate push button switches. By pressing any of these buttons, the position of the focus lens group L1 at that time is stored in the position storage means 7 (focus). Preset). Further, a position storage means 7 described later is provided corresponding to each of the four separate push button switches of the storage set operation member 61. By pressing these four separate push button switches, 4 It is possible to memorize the positions of the four focus lens groups L1, that is, the four focus positions.

The return operation member 91 is an operation member used when the focus lens group L1 is returned (going home) to a position stored in the position storage means 7 described later by pressing the storage set operation member 61.
Similarly to the storage set operation member 61, the return operation member 91 has four separate push button switches. By pressing these, the storage set operation member 61 is operated and stored in advance 4. The focus lens group L1 can be selectively returned to the focus position of the place.

In the following description, the position of a movable lens such as the focus lens group L1 that is memorized and restored by the memory setting operation member 61 and the return operation member 91 will be referred to as a position. For example, in this reference example , four positions can be stored.
In addition, although the push button which the memory | storage set operation member 61 and the return operation member 91 in this reference example have arrange | positioned in the cross shape, you may arrange | position not only this but linearly, for example.

FIG. 2 is a diagram illustrating a configuration of the camera system according to the first reference example .
The camera body 100 includes image display means 4, an AF module 8, and a camera CPU 21.
The interchangeable lens 200 has a focus lens group L1, a focus drive mechanism 1, a focus position detection mechanism 3, a storage set operation member 61, a position storage means 7, a return operation member 91, a lens CPU 22, and the like.

The image display means 4 is a stored information display unit that is provided on the back surface of the camera body 100 and can display images taken and various information in accordance with instructions from the CPU 21. The image display means 4 in this reference example uses a liquid crystal display device.
The AF module 8 is a phase difference type autofocus module that obtains the defocus amount of the subject image obtained from the photographing optical system of the interchangeable lens 200.
The camera CPU 21 is a camera-side CPU that mainly controls camera-side functions and operations.

The focus lens group L1 is a movable lens that forms part of the photographing optical system and can be focused by movement in the optical axis direction.
The focus drive mechanism 1 is a drive unit that moves the focus lens group L1.
The focus position detection mechanism 3 is a movable lens position detection unit that detects the position of the focus lens group L1 in the optical axis direction.
The storage set operation member 61 is an operation member for storing a plurality of specific positions of the focus lens group L1. The storage set operation member 61 has four push buttons as shown in FIG. 1, but in FIG. 2, only two storage set operation members 61a and 61b are shown for simplicity. .

The position storage means 7 is a storage unit that stores an output value of the focus position detection mechanism 3 at the time of focus presetting. FIG. 2 shows two of the position storage means 7a and 7b. However, like the storage set operation member 61, only four are originally shown for the sake of simplicity. FIG. 2 shows an example in which the position storage means 7a and 7b are separately provided corresponding to the storage set operation members 61a and 61b. However, this may be formed by one storage means.
The position storage means 7 may be provided in the camera system. In this reference example , since the position storage means 7 is provided in the interchangeable lens 200, the position storage means 7 is a non-volatile memory. Even when a camera body is used, the preset information can be used as it is.
A movable lens position storage means is formed by the storage set operation member 61, the position storage means 7, and a lens CPU 22 described later.

The return operation member 91 is an operation member for selectively returning the focus lens group L1 to a plurality of storage positions stored in the position storage unit 7. The return operation member 91 has four push buttons as shown in FIG. 1, but FIG. 2 shows only two return operation members 91a and 91b for simplicity.
The return operation member 91 and a lens CPU 22 described later form a movable lens return means.

The lens CPU 22 is a control unit that mainly controls operations in the interchangeable lens 200. The lens CPU 22 causes the position storage unit 7 to store the position of the focus lens group L1 when the storage set operation member 61 is pressed.
Further, when the return operation member 91 is pressed, the lens CPU 22 compares the position of the focus lens group L1 at that time with the position of the focus lens group L1 stored in the position storage means 7, and sets the necessary drive amount. An instruction to drive the focus lens group L1 is given to the focus drive mechanism by calculation.
The lens CPU 22 can communicate with the camera CPU 21 and can transmit stored information related to the position of the focus lens group L1 stored in the position storage unit 7 to the camera CPU 21 (acts as a stored information transmission unit). ).

Next, the operation will be described.
Here, it is assumed that two focus positions are stored in baseball shooting.
The photographer stands by with the camera 100 and the interchangeable lens 200 placed on a tripod at a photographing seat next to the first base or the third base. Before the game starts, the photographer memorizes the focus position corresponding to the 2 base and pitcher mound. For this purpose, the photographer focuses on the 2 、 base and the pitcher mound by auto focus or manual focus.
After focusing, the photographer presses the storage set operation members 61a and 61b at the respective focus positions.

When the storage set operation members 61a and 61b are pressed, the position of the focus lens group L1 at that time is known from the detection values of the focus position detection means 3, and the respective detection values are stored in the position storage means 7a and 7b (focus presets). )
Here, as an example, it is assumed that the memory set operating member 61a is pressed with the 2 塁 base in focus and the memory set operating member 61b is pressed with the focus on the pitcher mound.

  After that, when shooting is performed and it is necessary to take a picture with a subject with 2 mm in the bag, the photographer presses the return operation member 91a. Further, when it is necessary to take an image with the pitcher in focus, the return operation member 91b is pushed. Thereby, the stored 2 塁 focus position data or pitcher focus position data is extracted from the position storage means 7a or 7b, and the focus lens mechanism L1 is pre-focus-preset by the focus driving mechanism 1 (up 2 塁 or Pitcher is driven (go home). The drive at the time of this go home only moves to the position of the stored focus lens group L1, and does not require the focusing operation by the AF module 8, so that it is focused at the stored position very quickly and surely. Can be combined.

FIG. 3 is a diagram showing a display example of the image display means 4 in the reference example 1 in a state where the focus preset is performed.
In the present reference example , information relating to the position of the focus lens group L1 stored in the position storage unit 7 can be displayed on the image display unit 4. In the example shown in FIG. 3, the position of the focus lens group L1 is stored at positions 1 to 3, and the shooting distance (= the distance from the focal plane of the camera to the subject) is displayed for each, but not yet stored. Position 4 is displayed as not registered.

In the camera system of this reference example , four positions can be stored, but in this reference example , since the shooting distance of each position is displayed as shown in FIG. 3, which focus position is stored in which position. This makes it possible to perform certain operations without being confused during shooting.
Further, since the display uses the image display means 4 of the camera body 100, it is not necessary to newly provide an expensive display device and can be manufactured at a low cost.

According to this reference example , a plurality of positions of the focus lens group L1 can be preset, and can be moved to a position arbitrarily selected from the positions. You can shoot in response to
In addition, since the shooting distance and the like of each position are displayed, information regarding the preset position can be easily and in detail, and usability during shooting can be improved.
[ Reference Example 2]

FIG. 4 is a diagram illustrating a configuration of the camera system of Reference Example 2.
Since the interchangeable lens 220 of the reference example 2 has a form in which image storage means 5a and 5b are added to the interchangeable lens 200 of the reference example 1, the same reference numerals are given to portions that perform the same functions as those of the reference example 1. A duplicate description will be omitted as appropriate.

The image storage unit 5 is an image storage unit that stores an image captured at the same time as the focus preset in association with the stored position. In FIG. 4, two image storage units 5a and 5b are shown corresponding to the position storage units 7a and 7b. However, like the position storage unit 7 of Reference Example 1, four points should be originally shown. For simplicity, only two are shown. 4 shows an example in which the image storage means 5a and 5b are separately provided. However, this may be formed by one storage means, or by one storage means together with the position storage means 7. It may be formed. Furthermore, the image stored in the image storage means 5 is not limited to an image (memory image) that is simultaneously captured at the time of focus presetting, but can be any image that is captured with the focus lens group L1 positioned at the focus preset position. You may memorize | store the image (equivalent image at the time of a memory | storage) image | photographed at another time after a focus preset.

The image storage means 5a and 5b may be provided anywhere within the camera system.
In this reference example , since the image storage means 5 is provided in the interchangeable lens 220, the interchangeable lens 220 is temporarily detached from the camera body 100 during photographing by using the image storage means 5 as a nonvolatile memory, Even when a different camera body is used, the image stored at the time of presetting can be used as it is.

FIG. 5 is a diagram illustrating a display example of the image display unit 4 in a state where the focus preset is performed in Reference Example 2.
In this reference example , the information related to the position of the focus lens group L1 stored in the position storage unit 7 and the image stored in the image storage unit 5 in association with the information are displayed on the image display unit 4. Can do. In the example shown in FIG. 5, the position of the focus lens group L1 is stored in positions 1 to 3, the shooting distance and the image are displayed for each, and the position 4 that has not yet been stored is unregistered. It is displayed.

In the camera system of this reference example , four positions can be stored. In this reference example , an image is displayed in addition to the shooting distance of each position as shown in FIG. It is possible to know more intuitively whether it is memorized and to perform a more reliable operation.
According to this reference example , an image is displayed in addition to the shooting distance at each position, so it is easy to see what kind of shooting can be performed at each preset position, and the usability during shooting can be further improved. Can do.
[ Reference Example 3]

FIG. 6 is a diagram illustrating the configuration of the camera system of Reference Example 3.
In Reference Example 3, the zoom lens unit L2 can store its position (zoom position) (zoom preset) and return to the storage position (go home).
The interchangeable lens 230 of the reference example 3 is an example in which the same configuration as the focus preset and go home of the reference example 1 is performed on the variable power lens unit L2. A reference numeral is attached, and an overlapping description is omitted as appropriate.
The zoom lens unit L2 is a movable lens that changes the focal length by movement in the optical axis direction.

The zoom drive mechanism 10 is a drive unit that moves the variable power lens unit L2 by a drive force of a motor (not shown).
The zoom position detection mechanism 30 is a movable lens position detection unit that detects the position of the variable magnification lens group L2 in the optical axis direction.
The storage set operation member 61, the position storage means 7, the return operation member 91, and the lens CPU 22 perform an operation related to the position of the variable power lens group L2 in place of the operation related to the position of the focus lens group L1 in Reference Example 1, The same as Reference Example 1.

When the storage set operation member 61 is pressed, the position of the variable power lens unit L2 at that time is stored in the position storage means 7. The photographer can return the zoom lens unit L2 to the stored position by pressing the return operation member 91 when necessary. Further, up to four positions of the variable power lens unit L2 can be stored as in the case of the reference example 1, and it is possible to return to a position selected from them.
With this configuration, it is possible to store a plurality of necessary compositions, such as a composition set in advance, for example, a close-up of a batter, a composition in which a pitcher and a batter are placed in the screen, and the composition can be changed in the case of a bag. .
In this reference example , the return operation member 91 is operated to return to the position where the variable magnification lens unit L2 is stored. However, the focus lens unit L1 is driven by the return operation to focus at the time of storage. It can also be in a state. In this case, since the in-focus state is adjusted together with the composition change, it is possible to take an even faster picture.

FIG. 7 is a diagram illustrating a display example of the image display unit 4 in the reference example 3 in a state where the zoom preset is performed.
In the present reference example , information relating to the position of the variable power lens unit L2 stored in the position storage unit 7 can be displayed on the image display unit 4. In the example shown in FIG. 7, the position of the variable power lens unit L2 is stored at positions 1 to 3, the focal length is displayed for each, and the display indicating that the position 4 not yet stored is unregistered. Has been.
In the camera system of this reference example , four positions can be stored. In this reference example , since the focal length of each position is displayed as shown in FIG. 7, which zoom position is stored in which position. This makes it possible to perform certain operations without being confused during shooting.

According to this reference example , a plurality of positions of the variable power lens unit L2 can be stored and restored, and the focal length is displayed on the image display unit 4 for each position, so that a plurality of compositions are frequently switched and photographed. It is possible to improve the usability in such cases.
[ Reference Example 4]

The interchangeable lens 240 of Reference Example 4 is a form in which image storage means 5a and 5b are added to the interchangeable lens 230 of Reference Example 3, and is the same example as the relationship between Reference Example 1 and Reference Example 2. Portions that perform the same functions as those in Reference Examples 1 to 3 are denoted by the same reference numerals, and repeated description is omitted as appropriate.
FIG. 8 is a diagram illustrating the configuration of the camera system of Reference Example 4.
The image storage unit 5 is a storage unit that stores an image captured at the same time as the zoom preset in association with the stored position.

FIG. 9 is a diagram illustrating a display example of the image display unit 4 in the reference example 4 in a state where the zoom preset is performed.
In this reference example , the information related to the position of the variable power lens unit L2 stored in the position storage unit 7 and the image stored in the image storage unit 5 in association therewith are displayed on the image display unit 4. be able to. In the example shown in FIG. 9, the position of the variable power lens unit L2 is stored in positions 1 to 3, the focal length and the image are displayed for each, and the position 4 that is not yet stored is unregistered. Is displayed.

In the camera system of this reference example , four positions can be stored. In this reference example , an image is displayed in addition to the focal length of each position as shown in FIG. It is possible to know more intuitively whether it is memorized and to perform a more reliable operation.
According to this reference example , an image is displayed in addition to the focal length of each position, so it is easy to see what kind of shooting can be performed at each preset position, and the usability at the time of shooting can be further improved. Can do.
[Example 1 ]

FIG. 10 is a diagram illustrating the configuration of the camera system according to the first embodiment.
The interchangeable lens 250 of the first embodiment, since the form obtained by adding a zoom position detecting mechanism 35 with respect to the interchangeable lens 200 of Reference Example 1, parts having the same functions as in Reference Example 1, with the same reference numerals Thus, overlapping description will be omitted as appropriate.
The zoom position detection mechanism 35 is a movable lens position detection unit that detects the position of the variable magnification lens group L2 in the optical axis direction.

The zoom position detection mechanism 35 has the same function as that of the zoom position detection mechanism 30 in Reference Example 3, but the interchangeable lens 250 of the present embodiment motor-drives the variable power lens group L2 by the zoom drive mechanism. Instead, the variable power lens unit L2 is driven manually.
The position of the zoom lens group L2 detected by the zoom position detection mechanism 35 is sent to the lens CPU 22, and at the time of focus presetting, the position of the focus lens group L1 and the position of the zoom lens group L2 at that time are also stored in the position memory means. 7 is stored.

Next, the operation will be described.
Here, baseball shooting is assumed.
The photographer stands by with the camera 100 and the interchangeable lens 250 mounted on a tripod at a photographing seat next to one or three feet. Before the game starts, the photographer will focus on the second base and set the focus preset. Specifically, the photographer focuses on 2mm with auto focus or manual focus. After focusing, the photographer presses the storage set operation member 61.

  When the storage set operation member 61 is pressed, the position of the focus lens group L1 at that time is known from the detection value of the focus position detection mechanism 3, and the detection value is stored in the position storage means 7. At the same time, the position of the zoom lens group L2 at that time is known from the detection value of the zoom position detection mechanism 35, and the detection value is stored in the position storage means 7.

  Thereafter, the photographer pushes the return operation member 91 when it is necessary to take a picture with the subject at 2 mm in the middle of the shooting. By pushing the return operation member 91, the lens CPU 22 pulls out the stored 2 塁 focus position data from the position storage means 7, and the focus driving mechanism 1 sets the focus lens group L1 in advance (up 2 塁). To drive. At this time, for example, the zoom position when the storage set operation member 61 is pressed and stored is the wide (wide angle) side, and the zoom position to be photographed by pressing the return operation member 91 is stored by pressing the storage set operation member 61. If it is on the tele (telephoto) side than the zoom position at that time, it is possible that the picture will be in focus.

In order to solve this problem, for example, even if the focus preset is possible at an arbitrary zoom position, if the zoom position at the time of go-home is closer to the telephoto side than the zoom position at the time of focus preset, the go-home operation is performed. It is better not to do.
By doing as described above, the photographer can cope with the photographing of 2 mm with the eyelid even with the zoom lens.

FIG. 11 is a diagram illustrating a display example of the image display unit 4 in the state where the focus preset is performed in the first embodiment.
In FIG. 11, four focus preset positions (positions 1 to 4) are displayed. The shooting distance and the focal length stored in the position storage means 7 are displayed. Note that position 4 is an example of an unregistered state.
The photographer can grasp the current setting state by looking at the information displayed on the image display means 4 and can surely perform the intended photographing.

  In particular, since the focal length is displayed in addition to the shooting distance, it is possible to prevent the user from going home when the zoom position at the time of focus preset is on the telephoto side. In addition, a position where there is no possibility that the photograph will be out of focus even if going home at the current zoom position is displayed separately from a position where there is a high possibility that the photograph will be out of focus if going home (the display color is changed). Or may be displayed in reverse video).

According to the present embodiment, since the focal length is displayed in addition to the shooting distance for each focus preset position, the current setting state can be accurately grasped and the intended shooting can be performed reliably.
In addition, referring to the displayed focal length at the time of the focus preset, and making the focal length when performing go home not to be on the telephoto side than the focal length at the time of the focus preset, the photograph will be out of focus. Can be prevented.
[Example 2 ]

Example 2 to Example 5 are examples in which only the specific shape of the storage set operation member is changed. Therefore, in the following description of the second to fifth embodiments, only the storage set operation member will be described. The examples shown in the second to fifth embodiments are described as storing the focus position. However, the above-described reference examples 1 to 4 and the examples including the reference examples 3 and 4 storing the zoom position are also described. 1 may be applied.

FIG. 12 is a diagram illustrating the external appearance of a part of the interchangeable lens and the camera body of the camera system according to the second embodiment.
The storage set operation member 62 for storing a plurality of positions is provided with a cross key type push button switch that can be pushed in four directions, and can store four focus positions. The return operation member 92 for selectively returning the focus lens group L1 to a plurality of storage positions is similarly provided with a cross key type push button switch that can be pushed in four directions. It is possible to return to four focus positions.
[Example 3 ]

FIG. 13 is a diagram illustrating the external appearance of a part of the interchangeable lens and the camera body of the camera system according to the third embodiment.
A plurality of focus positions can be stored by setting a position to be stored in advance using the dial 83 and pressing a push button of the storage setting operation member 63.
Similarly, in order to return the focus lens group L1, a previously stored position is set by the dial 83 and the push button of the return operation member 93 is pressed, so that the plurality of previously stored focus positions are obtained. Selective recovery is possible.

For example, position 1 can be selected by dial 83 to store a certain focus position, and then position 2 can be selected by dial 83 to store another focus position.
In the case of returning, if the dial 83 is set to position 1, it returns to the focus position stored in position 1, and if it is set to position 2, it returns to the focus position stored in position 2. The selection of the position is not limited to the dial, and a slide switch, a push button, etc. can be adopted.
[Example 4 ]

FIG. 14 is a diagram illustrating the external appearance of a part of the interchangeable lens and the camera body of the camera system according to the fourth embodiment.
The storage set operation member 64 for storing a plurality of positions uses a push button switch, identifies the position by the number of times the push button is pressed within a predetermined time, and can store a plurality of focus positions. For example, if the push button switch is pressed twice within a predetermined time, the focus position is stored in position 2, and if pressed three times within the predetermined time, the focus position is stored in position 3.

The return operation member 94 for selectively returning the focus lens group L1 to a plurality of storage positions similarly uses a push button switch, identifies the position by the number of times the push button is pressed within a predetermined time, It is possible to return to a plurality of stored focus positions. For example, if the push button switch is pressed twice within a predetermined time, the focus position stored in position 3 is returned to position 2, and if the push button switch is pressed three times within a predetermined time.
[Example 5 ]

FIG. 15 is a diagram illustrating the external appearance of a part of the interchangeable lens and the camera body of the camera system according to the fifth embodiment.
The storage set operation member 65 for storing a plurality of positions uses a push button switch, identifies the position by the number of times the push button is pressed within a predetermined time, and can store a plurality of focus positions. For example, if the push button switch is pressed once within a predetermined time, the focus position is stored in position 1, and if pressed twice within the predetermined time, the focus position is stored in position 2. In Example 5 , there are two focus positions that can be stored.

The return operation member 95 for selectively returning the focus lens group L1 to a plurality of storage positions is a rotation ring around the optical axis, and can be rotated left and right by a predetermined rotation angle. Return to the neutral position. If the return operation member 95 is rotated in the right direction (the direction of right rotation when viewed from the camera back side), the return operation member 95 is returned to the focus position stored in the position 1 and rotated to the left (left rotation as viewed from the camera back side). If it is rotated in the direction), it returns to the focus position stored in position 2.
In the fifth embodiment, the storage set operation member 65 has been described in the same manner as the method described in the fourth embodiment, but the storage set operation member shown in the other reference examples described above may be employed.

(Modification)
Without being limited to the examples described above, various modifications and changes are possible, and these are also within the equivalent scope of the present invention.
(1) In each example , the shooting distance, the focal length, and the image are stored and displayed. However, the display combinations in these examples are merely examples, and the combinations may be freely changed. For example, only the image may be displayed, or the shooting distance, the focal length, and the image may all be displayed.

(2) In each example , an example in which the stored information regarding the position of the movable lens is displayed on the image display unit including the liquid crystal display device on the back of the camera is shown. However, the present invention is not limited to this. If it is only information such as the focal length and the like, other display units of the camera such as the main panel and the viewfinder may be used.

(3) In each example except Example 5 , the storage set operation member and the return operation member are examples using the same method, but not limited to this, for example, these may be combined as appropriate, Forms other than those shown in each example may be used.

(4) In each example , the example in which both the storage set operation member and the return operation member are provided in the lens barrel has been described. However, the present invention is not limited thereto, and it may be provided in the camera system. For example, one or both of the storage set operation member and the return operation member may be provided on the camera body.

(5) In each example , by selectively using a plurality of switches included in the return operation member, the focus lens group L1 and the variable power lens group L2 are returned to positions selected from a plurality of stored positions. Although an example is shown, the present invention is not limited to this, and for example, a position where the focus lens group L1 and the variable power lens group L2 are returned when the return operation member is operated from among a plurality of positions displayed on the image display means 4. May be selectively designated in advance. Similarly, the position stored when the storage set operation member is operated may be designated in advance. By doing in this way, the structure of a return operation member can be simplified.

(6) In each example , the image display means 4 has shown the example which displays memorize | stored information, such as an imaging distance, a focal distance, and an image, but not only displaying the memorize | stored information, For example, go home is displayed. The selected position may be displayed separately from other positions (change the display color, reverse display, etc.), or select directly from the displayed position by key operation or touch panel. You may make it go home.

It is the figure which showed the external appearance of a part of interchangeable lens and camera body of the camera system in Reference Example 1. It is a figure which shows the structure of the camera system of the reference example 1. FIG. FIG. 10 is a diagram illustrating a display example of the image display unit 4 in a state where focus presetting is performed in Reference Example 1; It is a figure which shows the structure of the camera system of the reference example 2. FIG. FIG. 10 is a diagram illustrating a display example of the image display unit 4 in a state where focus presetting is performed in Reference Example 2. It is a figure which shows the structure of the camera system of the reference example 3. FIG. In the reference example 3, it is a figure which shows the example of a display of the image display means 4 in the state which has performed the zoom preset. It is a figure which shows the structure of the camera system of the reference example 4. FIG. In Reference Example 4, it is a figure which shows the example of a display of the image display means 4 in the state which has performed the zoom preset. 1 is a diagram illustrating a configuration of a camera system according to Embodiment 1. FIG. In Example 1 , it is a figure which shows the example of a display of the image display means 4 in the state which is performing the focus preset. FIG. 6 is a diagram illustrating an external appearance of a part of an interchangeable lens and a camera body of a camera system in Example 2 . FIG. 6 is a diagram illustrating the external appearance of a part of an interchangeable lens and a camera body of a camera system in Example 3 . FIG. 10 is a diagram illustrating the external appearance of a part of an interchangeable lens and a camera body of a camera system in Example 4 . FIG. 10 is a diagram illustrating the external appearance of a part of an interchangeable lens and a camera body of a camera system in Example 5 .

Explanation of symbols

L1 Focus lens group L2 Variable magnification lens group 1 Focus drive mechanism 3 Focus position detection mechanism 4 Image display means 5, 5a, 5b Image storage means 7, 7a, 7b Position storage means 8 AF module 10 Zoom drive mechanism 21 Camera CPU
22 Lens CPU
30, 35 Zoom position detection mechanism 61, 61a, 61b Storage set operation member 91, 91a, 91b Return operation member 100 Camera body 200, 220, 230, 240, 250, 260, 270, 280, 290 Interchangeable lens

Claims (7)

An interchangeable lens that can be attached to and detached from the camera body,
An imaging optical system in which at least a part of the movable lens is movable along the optical axis direction;
A drive unit for driving the movable lens;
A movable lens position detector that detects a focal position of the movable lens and detects a zoom position when the focal position is detected;
Movable lens position storage means capable of storing a plurality of focal positions of the movable lens detected by the movable lens position detector;
Movable lens return means for driving and returning the movable lens to the focal position selected from the plurality of focal positions stored in the movable lens position storage means,
The movable lens return means does not drive the movable lens when the zoom position when the movable lens return means is operated is telephoto side than the zoom position when the focus position is stored. Interchangeable lens. The interchangeable lens according to claim 1,
An image at the time of storage taken at the time of storing the position of the movable lens in the movable lens position storage means and / or an image corresponding to the image at the time of storage, and the movable lens position storage means An image storage unit for storing a plurality of images corresponding to the time of storage, which are photographed in a state where the focal distance and the photographing distance at the time of storing the position are equal, in association with the positions of the movable lenses stored in the movable lens position storage unit;
An interchangeable lens characterized by The interchangeable lens according to claim 2,
At least one of the movable lens position storage unit and the image storage unit is a non-volatile memory. The interchangeable lens according to claim 2 or 3,
An interchangeable lens comprising: a storage information transmission unit configured to transmit storage information stored in at least one of the movable lens position storage unit and the image storage unit to the camera body. In the interchangeable lens as described in any one of Claims 2-4,
The interchangeable lens, wherein the movable lens return means includes a return operation member that selects one of a plurality of positions stored in the movable lens position storage means. In the interchangeable lens according to any one of claims 2 to 5,
The movable lens is at least one of a focusing lens and a variable power lens.   A camera system comprising the interchangeable lens according to any one of claims 1 to 6.

Images