JP2006171392A - Camera system, intermediate accessory thereof, camera body, and interchangeable lens - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent wrong corrections from being conducted, when an intermediate accessory is mounted between a camera body and an interchangeable lens. <P>SOLUTION: The camera with an interchangeable lens comprises an interchangeable lens equipped with a storage means for storing individual recognition information; a camera body on which the interchangeable lens can be mounted and which has a correction means for correcting various parameters, based on the individual recognition information of the interchangeable lens; a communication means between the camera body and the interchangeable lens; and an intermediate accessory which can be mounted between the camera body and the interchangeable lens. When the intermediate accessory is to be mounted between the camera body and the interchangeable lens, the individual identifying information of the interchangeable lens is changed, according to the individual recognition information of the intermediate accessory or its kind, and this is transmitted to the correction means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an intermediate accessory mounted between a camera body and an interchangeable lens, a camera body, an interchangeable lens, and a camera system including them.

It is configured to be able to communicate between the camera and the lens (between the camera body and the interchangeable lens) and has individual identification information for identifying each individual on the interchangeable lens side. Individual identification information is transmitted to the camera body (hereinafter also simply referred to as a camera), and the camera has identification means for identifying an interchangeable lens based on the individual identification information, and matches each individual interchangeable lens according to the identification result of the identification means. An interchangeable lens camera system capable of performing various corrections has been proposed in, for example, Japanese Patent Application Laid-Open No. 10-20181. The above-described proposal describes a method for correcting and reading out correction data for drive control parameters of an interchangeable lens in association with identification data unique to the lens, and reading and correcting the corresponding correction data from the identification data of the attached lens.
Japanese Patent Laid-Open No. 10-20181

In the above proposal, since it was the drive control parameter of the interchangeable lens that was corrected, it was not necessary to change the correction value even when an intermediate accessory was mounted between the interchangeable lens and the camera body. When correcting a parameter that changes depending on mounting, if the identification data is not changed between mounting and non-mounting, incorrect correction is performed, which causes a problem.
An object of the present invention is to prevent erroneous correction when an intermediate accessory is mounted between a camera body and an interchangeable lens.

In order to solve the above problems, the present invention is characterized in that when an intermediate accessory is mounted between the camera body and the interchangeable lens, the information for identifying the individual is changed to perform the correction.
That is, the camera system of the present invention includes an interchangeable lens having a storage unit for storing individual identification information, and a correction unit that can be attached to the interchangeable lens and corrects various parameters based on the individual identification information of the interchangeable lens. An interchangeable lens camera system comprising: a camera body having communication means for communicating between the camera body and an interchangeable lens; and an intermediate accessory that can be mounted between the camera body and the interchangeable lens, wherein the intermediate accessory is mounted In this case, the individual identification information or type of the attached intermediate accessory is determined, and the information obtained by changing the individual identification information of the interchangeable lens according to the determination result is replaced with the interchangeable lens individual identification information, or the determination result And an individual identification information changing means for transmitting information to the correction means together with the interchangeable lens individual identification information. .

According to the present invention, the individual identification information changing means can be provided in any of the camera body, the interchangeable lens, and the intermediate accessory.
For example, in Embodiments 1 and 4 below, the individual identification information changing means is provided in an interchangeable lens, and a conventional camera body can be used.
In Embodiment 2, the individual identification information changing means is provided in the camera body, and a conventional interchangeable lens can be used.
Embodiment 3 shows a configuration of an intermediate accessory when the individual identification information changing means is provided in an interchangeable lens (embodiments 4 to 6).
Embodiment 5 shows a configuration of an interchangeable lens when the individual identification information of the interchangeable lens and the individual identification information of the intermediate accessory of Embodiment 3 are transmitted from the interchangeable lens to the camera body. Embodiment 6 shows the configuration of the camera body when the intermediate accessory of Embodiment 3 and the interchangeable lens of Embodiment 5 are used.
Embodiment 7 shows the configuration of the intermediate accessory when the individual identification information changing means is provided in the intermediate accessory. This intermediate accessory is used in combination with the interchangeable lens of Embodiment 8. A conventional camera body can be used.
Embodiment 9 shows the configuration of the intermediate accessory when the individual identification information changing means is provided in the intermediate accessory. This intermediate accessory is used in combination with the camera body of the tenth embodiment. Conventional interchangeable lenses can be used.
In the ninth embodiment, the individual identification information changing means is provided in the intermediate accessory, and the individual identification information of the intermediate accessory and the individual identification information of the interchangeable lens are transmitted from the intermediate accessory to the camera body. This intermediate accessory is used in combination with the camera book of the tenth embodiment. Conventional interchangeable lenses can be used.
In the eleventh embodiment, the individual identification information changing means is provided in the intermediate accessory, and communication of information other than the individual identification information between the camera body and the interchangeable lens is relayed by the intermediate accessory. A camera body and a conventional one can be used.

  The camera main body, the interchangeable lens, and the intermediate accessory according to the present invention, when the intermediate accessory is attached between the camera main body and the interchangeable lens, the individual identification information different from that when the interchangeable lens is attached to the camera is displayed on the camera side. Therefore, it is possible to prevent wrong correction on the camera side. Furthermore, if the intermediate accessory is also made to wait for the individual identification information, more accurate correction can be made in combination with the interchangeable lens.

The embodiments of the present invention are listed below.
[Embodiment 1] It is configured to be able to communicate between a camera and a lens, and has storage means for storing individual identification information for identifying each individual on the interchangeable lens side. The individual identification information stored in the storage means is transmitted to the camera body by inter-lens communication, and the camera body has identification means for identifying the interchangeable lens from the individual identification information, and each of the interchangeable lenses is identified by the identification result of the identification means. In interchangeable lenses of interchangeable lens camera systems that can perform various corrections tailored to the individual,
A detecting means for detecting that an intermediate accessory to be attached between the camera body and the interchangeable lens is attached; and a determining means for determining the type of the attached intermediate accessory; the intermediate accessory is detected by the detecting means. In this case, the interchangeable lens is characterized in that the individual identification information of the interchangeable lens is changed according to the discrimination result by the discrimination means and transmitted to the camera body.

[Embodiment 2] It is configured to be able to communicate between a camera and a lens, and has storage means for storing individual identification information for identifying each individual on the interchangeable lens side. The individual identification information stored in the storage means is transmitted to the camera body by inter-lens communication, and the camera body has identification means for identifying the interchangeable lens based on the individual identification information. In the camera of the interchangeable lens camera system that can perform various corrections according to the individual,
A detecting unit for detecting that an intermediate accessory to be mounted between the camera body and the interchangeable lens is mounted; and a determining unit for determining a type of the mounted intermediate accessory. The detecting unit detects the intermediate accessory. In the case of the camera body, the camera body is subjected to various corrections by adding a change corresponding to the discrimination result of the discrimination means to the discrimination result of the discrimination means.

[Embodiment 3] In an intermediate accessory attached between the interchangeable lens of the interchangeable lens camera and the camera body, storage means for storing individual identification information for identifying individual individuals and communication with the interchangeable lens An intermediate accessory that communicates with the interchangeable lens by the communication means and transmits the individual identification information stored in the storage means to the interchangeable lens.

[Embodiment 4] The camera and the lens are configured to be able to communicate with each other. The interchangeable lens side has storage means for storing individual identification information for identifying each individual, and the interchangeable lens is a camera. The individual identification information stored in the storage means is transmitted to the camera body by inter-lens communication, the camera body identifies the interchangeable lens from the individual identification information, and performs various corrections according to each individual of the interchangeable lens based on the identification result. In interchangeable lenses for interchangeable lens camera systems,
Second communication means for communicating with the intermediate accessory according to the third embodiment, individual identification information of the interchangeable lens stored in the storage means, and individual identification of the intermediate accessory acquired by communication by the second communication means An interchangeable lens, comprising: computation means for performing computation processing determined in advance with information, and transmitting the result of the computation means to the camera body as individual identification information of the interchangeable lens.

[Embodiment 5] The camera-lens is configured to be communicable, and the interchangeable lens has storage means for storing individual identification information for identifying each individual, and the interchangeable lens is a camera. The individual identification information stored in the storage means is transmitted to the camera body by inter-lens communication, the camera identifies the interchangeable lens from the individual identification information, and performs various corrections according to each individual of the interchangeable lens based on the identification result. In interchangeable lenses for interchangeable lens camera systems,
An intermediate accessory having second communication means for communicating with the intermediate accessory according to the third embodiment, acquired by communication with the individual identification information of the interchangeable lens stored in the storage means, and communication by the second communication means Each of which is transmitted to the camera side.

[Embodiment 6] Communication means for communicating with the interchangeable lens according to Embodiment 5 is provided, and the interchangeable lens and the intermediate accessory are identified by the individual identification information of the interchangeable lens and the individual identification information of the intermediate accessory acquired by the communication means. An interchangeable lens camera body that can perform various corrections according to the combination of each individual.

[Embodiment 7] In an intermediate accessory mounted between the interchangeable lens of the interchangeable lens camera and the camera body, storage means for storing individual identification information for identifying individual individuals and communication with the interchangeable lens And means for performing a predetermined calculation process between the individual identification information of the intermediate accessory stored in the storage means and the individual identification information of the interchangeable lens acquired by communication by the communication means; And an intermediate accessory for transmitting a calculation result of the calculation means to the interchangeable lens.

[Embodiment 8] It is configured to be able to communicate between a camera and a lens, and has storage means for storing individual identification information for identifying each individual on the interchangeable lens side. The individual identification information stored in the storage means is transmitted to the camera body by inter-lens communication, the camera body identifies the interchangeable lens from the individual identification information, and performs various corrections according to each individual of the interchangeable lens based on the identification result. In interchangeable lenses for interchangeable lens camera systems,
A second communication unit for communicating with the intermediate accessory according to the seventh embodiment, and a calculation result of the intermediate accessory according to the seventh embodiment acquired through communication by the second communication unit as individual identification information of the interchangeable lens An interchangeable lens that is transmitted to the main body.

[Embodiment 9] In an intermediate accessory mounted between the interchangeable lens of the interchangeable lens camera and the camera body, storage means for storing individual identification information for identifying individual individuals, and communication with the camera body An intermediate accessory comprising: a communication unit configured to communicate with the camera body using the communication unit, and to transmit the individual identification information stored in the storage unit to the camera body.

[Embodiment 10] First communication means for communicating with an interchangeable lens having individual identification information, and second communication means for communicating with an intermediate accessory according to embodiment 9, The interchangeable lens is identified from the individual identification information of the interchangeable lens acquired by the communication means, and the intermediate accessory is identified from the individual identification information of the intermediate accessory acquired by the second communication means. An interchangeable-lens camera body characterized in that various corrections can be made according to the combination.

[Embodiment 11] In an intermediate accessory mounted between the interchangeable lens of the interchangeable lens camera and the camera body, individual identification information of the interchangeable lens transmitted from the interchangeable lens toward the camera body is received, Correction calculation means for applying correction processing to individual identification information to generate correction information, individual identification information correction transmission means for transmitting the correction information to the camera body, and information other than individual identification information as they are An intermediate accessory comprising information transmitting means for transmitting to a camera body.

Hereinafter, the above-described embodiment will be described in detail based on the illustrated examples.
[First embodiment]
First, an example of a camera system including the interchangeable lens described in Embodiment 1 will be described. FIG. 1 is a block diagram of the camera system according to the present embodiment. In the figure, 100 is a camera body, 400 is an interchangeable lens, and 700 is an intermediate accessory.
In the camera main body 100, there is an electric circuit unit 101. The electric circuit unit 101 measures the amount of light that has passed through the interchangeable lens, and measures the distance from the film surface to the subject. A distance measuring unit 103, a shutter 104 for exposing the film for an appropriate time, a feeding / charging system 105 for winding and rewinding the film, a camera body CPU 106 for controlling these cameras, and a lens Communication means 107 for performing serial communication is included.
In addition, there are electrical contacts 109, 110, and 111 connected to communicate with the interchangeable lens 400 and the intermediate accessory 700, and electrical contacts 112 and 113 for supplying power to the interchangeable lens and the intermediate accessory.
Further, the camera main body 100 includes a power source 108 for operating the camera system of the present embodiment.

  In the interchangeable lens 400, 401 is a focusing lens in the interchangeable lens 400, 402 is a zooming lens, 403 is a stop, 404 is a zoom position detection brush for detecting the position of the zooming lens 402, and 405 is a position of the focusing lens 401. A focus position detecting brush for detection, 406 is an A / M switch for switching between auto focus and manual focus, and 407 is an electric circuit section in the interchangeable lens 400. In the electric circuit unit 407, a communication means 409 for performing serial communication with the camera, an in-lens CPU 408 for controlling the interchangeable lens, a lens drive control unit 410 for controlling driving of the focusing lens, and focusing A lens driving motor 411 for driving the lens, an aperture control unit 412 for controlling driving of the aperture, an aperture driving motor 413 for driving the aperture, and a pulse signal output along with the movement of the focusing lens 401 A pulse generating means 414 is included. In addition, the electrical contacts 415, 416, and 417 connected to communicate with the camera 100, the electrical contacts 418, 419, and 420 for determining the connection with the intermediate accessory, and the electricity for receiving power supply from the camera. Contacts 421 and 422 are provided.

  In the intermediate accessory 700, signal generating means 701 for outputting information indicating the type of the intermediate accessory, electrical contacts 702, 703, 704, 707, 708, 709 for connecting the communication line between the camera body 100 and the interchangeable lens 400, and , Electrical contacts 710, 711, 712 for outputting information indicating the type of intermediate accessory to the interchangeable lens 400, and electrical contacts 705, 706, 713, 714 for connecting the power source of the camera body 100 to the interchangeable lens 400. Have.

Next, the processing of this embodiment will be described using the flowcharts of FIGS.
First, processing in the interchangeable lens 400 will be described with reference to the flowchart of FIG.
"Step101"
Processing of the interchangeable lens 400 in this embodiment is started.
"Step102"
It is determined whether or not the intermediate accessory 700 is attached. Specifically, it is determined whether or not the intermediate accessory is attached by detecting the state of the electrical contacts 418, 419, and 420 installed on the interchangeable lens 400. When not attached, since nothing is connected to each contact, there is no change in the state of the contact. If it is mounted, it can be determined that it is mounted because there are changes in the state of the plurality of contacts. If it is attached, go to “step 103”, otherwise go to “step 105”.

"Step103"
Since it is determined in “step 102” that the intermediate accessory 700 is attached, the type of the intermediate accessory 700 is determined here. Specifically, the state of the electrical contacts 418, 419, 420 is detected, and the type of the intermediate adapter is determined based on the combination. In this embodiment, a determination method when there are three contacts will be described. One of the three contacts 418 is output as COM, the remaining two contacts are input, 419 is set as EXT0, and 420 is set as EXT1. EXT0 and EXT1 are pulled up within the interchangeable lens 400, and if nothing is connected, the input value is Hi. The COM contact can output Hi or Low. In the intermediate accessory 700, the contact 710 corresponding to COM and the contacts 711 and 712 corresponding to EXT0 and EXT1 are internally short-circuited or opened. When the interchangeable lens 400 outputs Low to the COM contact when the intermediate accessory 700 is detected, the EXT0 or EXT1 contact that is short-circuited to COM by the intermediate accessory becomes Low level, and Hi is input to the open contact. The intermediate accessory attached by this combination can be discriminated. In this method, three types of intermediate accessories can be distinguished. If there are three or more types of intermediate accessories on the system, the determination can be made by the method disclosed in Japanese Patent Laid-Open No. 2000-147638, but the description thereof is omitted here.

"Step 104"
In the interchangeable lens 400, the individual identification information is corrected in accordance with the intermediate accessory 700 determined in “step 103”. For example, the upper 2 bits of the individual identification information are set to 0 in the case of the interchangeable lens 400 alone without the intermediate accessory 700 attached, and when the intermediate accessory 700 is attached, EXT1 acquired in “step 103” in the upper 2 bits, Add correction to write EXT0 information. This makes it possible to distinguish between a single unit and an intermediate accessory.

"Step105"
Communication of individual identification information is performed between the camera body 100 and the interchangeable lens 400. When the intermediate accessory 700 is not attached at “step 102”, the individual identification information of the interchangeable lens 400 is communicated, and when the intermediate accessory 700 is attached, the corrected individual identification information calculated at “step 104” is communicated. To do.
"Step106"
Thus, the process of the interchangeable lens 400 in this embodiment is completed.

Next, processing on the camera body 100 side will be described using the flowcharts of FIGS. 3 and 4.
First, the correction value storing operation of the camera body 100 in this embodiment will be described with reference to FIG.
"Step201"
The storage operation of the correction value of the camera body 100 in this embodiment is started.
"Step202"
Individual identification information is communicated with the interchangeable lens 400.

"Step 203"
An operation for detecting the correction amount is performed. For example, in the case of an operation for calculating a correction value related to AF of the camera system of the present embodiment, AF is performed by using the distance measuring unit 103 of the camera body 100, and then the actual focus position on the imaging surface is determined. To detect. At this time, a deviation between the focused position on the imaging surface and the position determined to be focused by the AF detection system is measured.
"Step204"
An operation for converting the correction amount measured in “step 203” into a correction value is performed. For example, when the value measured at “step 203” is in a unit of “μm” and the correction value “1” is expressed as a value representing “5 μm”, the value measured at “step 203” is “ The value divided by 5 ″ is used as the correction value.

"Step205"
The correction value calculated in “step 204” is written and stored in the storage area together with the individual identification information of the interchangeable lens 400 acquired in “step 202”.
"Step 206"
The correction value storing operation of the camera body 100 in this embodiment is finished.
The above storage operation may be incorporated in the camera body 100 as an adjustment mode, or may be performed using a tool.

Next, the correction operation of the camera body in the present embodiment will be described with reference to the flowchart of FIG.
"Step301"
The correction operation of the camera body 100 in this embodiment is started.
"Step302"
Individual identification information is communicated with the interchangeable lens 400.
"Step 303"
It is determined whether a correction value corresponding to the individual identification information obtained in “step 302” is stored. If stored, go to “step 304”, otherwise go to “step 305”.

"Step304"
Since the correction value corresponding to the individual identification information is stored, the correction value is read out.
"Step305"
Since no correction value is stored, a default correction value which is a standard value is read out.

"Step306"
A correction operation is performed according to the read correction value. Specifically, using the value obtained by adding the correction value obtained in “step 304” or “step 305” to the amount of focus deviation detected by the distance measuring unit 103 of the camera body 100, the current position is adjusted. The driving amount of the focusing lens 401 in the interchangeable lens 400 up to the focal position is obtained, and the driving operation is performed.
"Step 307"
The correction operation of the camera body 100 in this embodiment is finished.

  As described above, in the interchangeable lens according to the present embodiment, when the intermediate accessory is mounted, the information for identifying the individual to be transmitted to the camera is changed. It becomes possible to perform appropriate correction in each case.

[Second Embodiment]
Next, an example of the camera body described in Embodiment 2 will be described.
FIG. 5 is a block diagram of the camera system according to the present embodiment. In the figure, 200 is a camera body, 500 is an interchangeable lens, and 800 is an intermediate accessory.
In the camera body 200, there is an electric circuit unit 201. The electric circuit unit 201 measures the amount of light that has passed through the interchangeable lens 500, and measures the distance from the film surface to the subject. A distance measuring unit 203, a shutter 204 for exposing the film for an appropriate time, a feeding / charging system 205 for winding and rewinding the film, a CPU 206 in the camera body for controlling these cameras, and a lens Communication means 207 for performing serial communication is included. In addition, the electrical contacts 209, 210, and 211 connected to communicate with the interchangeable lens and the intermediate accessory, the electrical contacts 212, 213, and 214 for determining the connection with the intermediate accessory, the interchangeable lens and the intermediate accessory, Electrical contacts 215 and 216 for supplying power are provided.
Further, the camera body 100 includes a power source 208 for operating the camera system of the present embodiment.

  In the interchangeable lens 500, 501 is a focusing lens in the interchangeable lens 500, 502 is a zooming lens, 503 is a diaphragm, 504 is a zoom position detection brush for detecting the position of the zooming lens 502, and 505 is a position of the focusing lens 501. A focus position detection brush for detection, 506 is an A / M switch for switching between auto focus and manual focus, and 507 is an electric circuit section in the interchangeable lens 500. In the electric circuit unit 507, a communication unit 509 for performing serial communication with the camera, an in-lens CPU 508 for controlling the interchangeable lens, a lens drive control unit 510 for controlling driving of the focusing lens, and focusing A lens driving motor 511 for driving the lens, an aperture control unit 512 for controlling the driving of the aperture, an aperture driving motor 513 for driving the aperture, and a pulse signal output as the focusing lens 501 moves. A pulse generating means 514 is included. In addition, electrical contacts 515, 516, and 517 connected to communicate with the camera and electrical contacts 518 and 519 for receiving power supply from the camera are provided.

In the intermediate accessory 800, signal generating means 801 for outputting information indicating the type of the intermediate accessory, electrical contacts 802, 803, 804, 810, 811, 812 for connecting the communication line between the camera body 200 and the interchangeable lens 500, Electrical contacts 805, 806, 807 for outputting information indicating the type of the intermediate accessory to the camera body 200, and electrical contacts 808, 809, 813, 814 for connecting the power source of the camera body 200 to the interchangeable lens 500 are provided. Have.
Hereinafter, processing of the camera body 200 in the present embodiment will be described with reference to the flowchart of FIG.
"Step 401"
The processing in the camera body 200 of this embodiment is started.
"Step402"
Communication for acquiring individual identification information of the lens is performed.

"Step403"
It is determined whether or not the intermediate accessory 800 is attached. Specifically, it is determined whether or not the intermediate accessory is attached by detecting the state of the electrical contacts 212, 213, and 214 installed in the camera body 200. When not attached, since nothing is connected to each contact, there is no change in the state of the contact. If it is mounted, it can be determined that there is a change in the state of the plurality of contacts. If it is attached, go to “step 404”, otherwise go to “step 406”.

"Step404"
Since it is determined in “step 403” that the intermediate accessory 800 is attached, the type of the intermediate accessory 800 is determined here. Specifically, the states of the electrical contacts 212, 213, and 214 are detected, and the type of the intermediate adapter is determined based on the combination thereof. In this embodiment, a determination method when there are three contacts will be described. One of the three contacts 212 is COM as an output, the remaining two contacts are inputs, 213 is EXT0, and 214 is EXT1. EXT0 and EXT1 are pulled up in the interchangeable lens 500, and if nothing is connected, the input value is Hi. The COM contact can output Hi or Low. In the intermediate accessory, the contact 805 corresponding to COM and the contacts 806 and 807 corresponding to EXT0 and EXT1 are internally short-circuited or opened. When the intermediate accessory is detected, the interchangeable lens outputs Low to the COM contact, the EXT0 or EXT1 contact that is short-circuited with COM by the intermediate accessory becomes Low level, and Hi is input to the open contact. The intermediate accessory attached by this combination can be discriminated. In this method, three types of intermediate accessories can be distinguished. If there are three or more types of intermediate accessories on the system, the determination can be made by the method disclosed in Japanese Patent Laid-Open No. 2000-147638, but the description here is omitted.

"Step405"
In accordance with the intermediate accessory 800 determined in “step 404”, the individual identification information of the interchangeable lens 500 acquired in [step 402] is corrected. For example, the upper 2 bits of the individual identification information are set to 0 in the case of the interchangeable lens 500 alone without the intermediate accessory 800 attached, and when the intermediate accessory 800 is attached, correction of writing the information of EXT1 and EXT0 into the upper 2 bits. Add This makes it possible to distinguish between a single unit and an intermediate accessory.

"Step 406"
It is determined whether a correction value corresponding to the individual identification information obtained in “step 405” is stored. If stored, go to “step 407”, otherwise go to “step 408”.
"Step 407"
Since the correction value corresponding to the individual identification information is stored, the correction value is read out.

"Step 408"
Since no correction value is stored, a default correction value which is a standard value is read out.
"Step409"
A correction operation is performed according to the read correction value. Specifically, since it is the same operation as “step 306” described above, description thereof is omitted here.
"Step410"
The processing of the camera body 200 in this embodiment is finished.

  As described above, in the camera according to the present embodiment, the intermediate accessory is discriminated when the intermediate accessory is mounted, and it is possible to distinguish between when the interchangeable lens is alone and when the intermediate accessory is mounted, and appropriate correction is performed in each case. Can be done.

[Third embodiment]
Next, examples of the intermediate accessory described in Embodiment 3 and the interchangeable lens described in Embodiment 4 will be described.
FIG. 7 is a block diagram of the camera system according to the present embodiment. In the figure, 100 is a camera body, 600 is an interchangeable lens, and 900 is an intermediate accessory. Since the camera body 100 is the same as that described in FIG. 1 of the first embodiment, description thereof is omitted here.

  In the interchangeable lens 600, 601 is a focusing lens in the interchangeable lens 600, 602 is a zooming lens, 603 is a diaphragm, 604 is a zoom position detection brush for detecting the position of the zooming lens 602, and 605 is a position of the focusing lens 601. A focus position detection brush for detection, 606 is an A / M switch for switching between auto focus and manual focus, and 607 is an electric circuit section in the interchangeable lens 600. In the electric circuit unit 607, an in-lens CPU 608 that controls the interchangeable lens, a communication unit 609 for performing serial communication with the camera body 100, and a communication for performing serial communication with the intermediate accessory 900 Means 610, a lens drive control unit 611 for controlling the driving of the focusing lens, a lens driving motor 612 for driving the focusing lens, an aperture control unit 613 for controlling the driving of the aperture, and for driving the aperture A pulse generator 615 that outputs a pulse signal as the aperture driving motor 614 and the focusing lens 601 move is included. In addition, electrical contacts 616, 617, and 618 connected to communicate with the camera body 100, electrical contacts 619, 620, and 621 connected to communicate with the intermediate accessory 900, and power supply from the camera body 100 Electrical contacts 622, 623 for receiving.

  In the intermediate accessory 900, storage means 901 storing information indicating the type of the intermediate accessory and individual identification information, communication means 902 for communicating with the interchangeable lens 600, and communication lines between the camera body 100 and the interchangeable lens 600 Electrical contacts 903, 904, 905, 908, 909, 910, electrical contacts 911, 912, 913 connected to communicate with the interchangeable lens 600, and the power source of the camera body 100 to the interchangeable lens 600. Electrical contacts 906, 907, 914, 915 for the

Hereinafter, processing of the interchangeable lens 600 in the present embodiment will be described with reference to the flowchart of FIG.
"Step501"
Processing of the interchangeable lens 600 in this embodiment is started.
"Step502"
It is determined whether or not the intermediate accessory 900 is attached. Specifically, serial communication is started by the communication means 610 that communicates with the intermediate accessory installed in the interchangeable lens 600, and whether or not the intermediate accessory 900 is mounted by detecting a return signal from the intermediate accessory 900. Judging. If it is attached, go to “step 503”, otherwise go to “step 507”.

"Step 503"
A BUSY signal for prohibiting communication with the camera main body 100 is output to the camera main body 100, and communication from the camera main body 100 is prohibited during processing performed in the following "step 504" and "step 505".
"Step504"
Communication is performed with the intermediate accessory 900, and individual identification information of the intermediate accessory 900 is acquired.

"Step505"
The individual identification information of the interchangeable lens 600 and the individual identification information of the intermediate accessory 900 acquired in “step 504” are added to create new solid identification information. Although addition is performed in the present embodiment, another calculation may be performed so that individual identification information when the interchangeable lens 600 is a single unit and individual identification information when the intermediate accessory 900 is attached can be distinguished.
"Step 506"
In order to resume communication with the camera body 100, the BUSY signal output from “step 503” is canceled.

"Step 507"
It communicates with the camera body 100 and transmits individual identification information to the camera. When the individual identification information to be transmitted is determined in “step 502” that the intermediate accessory 900 is not attached, it is determined that the individual identification information of the interchangeable lens 600 itself is attached. If it is, the individual identification information calculated in “step 505” is transmitted to the camera.
"Step 508"
The processing of the interchangeable lens 600 in this embodiment is finished.

Since the processing on the camera body 100 side is the same as that shown in the flowchart of FIG. 4 described in the first embodiment, description thereof is omitted here.
As described above, in the intermediate accessory and the interchangeable lens according to the present embodiment, communication is performed between the interchangeable lens and the intermediate accessory, and new solid identification information is calculated from the individual identification information in the interchangeable lens to the camera side. Since the transmission is performed, the camera side can distinguish between a single unit and an intermediate accessory mounted, and appropriate correction can be performed in each case. Furthermore, since the individual identification information is also stored in the intermediate accessory, even when an intermediate accessory of the same type of different individual is attached to a certain interchangeable lens, different individual identification information is calculated for each combination. Correction can be performed.

[Fourth embodiment]
Next, examples of the interchangeable lens according to Embodiment 5 and the camera according to Embodiment 6 will be described.
FIG. 7 is a block diagram showing a camera system including the interchangeable lens and the camera according to the present embodiment, which is common to the third embodiment.

The processing of the interchangeable lens 600 in this embodiment will be described with reference to the flowchart of FIG.
"Step 601"
Processing of the interchangeable lens 600 in this embodiment is started.
"Step 602"
It is determined whether or not the intermediate accessory 900 is attached. Specifically, serial communication is started by the communication means 610 that performs communication with the intermediate accessory 900 installed in the interchangeable lens 600, and whether or not the intermediate accessory 900 is mounted by detecting a return signal from the intermediate accessory 900. Determine whether. If it is attached, go to “step 603”, otherwise go to “step 605”.

"Step 603"
A BUSY signal for prohibiting communication with the camera main body 100 is output to the camera main body 100, and communication from the camera main body 100 is prohibited during the processing performed in “step 604” below.
"Step 604"
Communication is performed with the intermediate accessory 900, and individual identification information of the intermediate accessory 900 is acquired.

"Step 605"
In order to resume communication with the camera body 100, the BUSY signal output from “step 603” is canceled.
"Step 606"
Communication with the camera body 100 is performed, and individual identification information of the interchangeable lens 600 is transmitted to the camera body 100.
"Step 607"
It is determined again whether the intermediate accessory 900 is attached. Here, the determination may be performed again by the same method as “step 602”, or the result of “step 602” may be used as it is. If it is attached, go to “step 608”, otherwise go to “step 610”.

"Step 608"
In order to notify the camera body 100 that the intermediate accessory 900 is mounted, the intermediate accessory mounting information is transmitted.
"Step609"
The individual identification information of the intermediate accessory 900 acquired in “step 604” is transmitted to the camera body 100.
"Step610"
The processing of the interchangeable lens in this embodiment is finished.

Next, processing of the camera body 100 described in Embodiment 6 will be described using the flowchart of FIG.
"Step 701"
The processing of the camera body 100 in this embodiment is started.
"Step 702"
Communication with the interchangeable lens 600 is performed, and individual identification information of the interchangeable lens 600 is acquired.
"Step 703"
It is determined whether a correction value corresponding to the individual identification information of the interchangeable lens 600 acquired in “step 702” is stored. If stored, go to “step 704”, otherwise go to “step 705”.

"Step 704"
Since the correction value corresponding to the individual identification information is stored, the correction value is read out.
"Step 705"
Since no correction value is stored, a default correction value which is a standard value is read out.
"Step 706"
It is determined whether or not the intermediate accessory 900 is attached. Specifically, the intermediate accessory mounting information transmitted by the interchangeable lens 600 is received at “step 608” described above, and it is determined from the information whether the mounting is performed. If it is attached, go to “step 707”, otherwise go to “step 712”.

"Step 707"
Communication with the interchangeable lens 600 is performed, and individual identification information of the intermediate accessory 900 is acquired.
"Step 708"
It is determined whether or not a correction value corresponding to the individual identification information of the intermediate accessory 900 acquired in “step 707” is stored. If stored, go to “step 709”, otherwise go to “step 710”.

"Step 709"
Since the correction value corresponding to the individual identification information is stored, the correction value is read out.
"Step 710"
Since no correction value is stored, a default correction value which is a standard value is read out.
"Step 711"
A final correction value is calculated from the correction value of the interchangeable lens 600 read out in “step 704” or “step 705” and the correction value of the intermediate accessory 900 read out in “step 709” or “step 710”.
"Step 708"
A correction operation is performed according to the correction value.
"Step 709"
The processing of the camera in this embodiment is finished.

  As described above, in the camera and the interchangeable lens according to the present embodiment, communication is performed between the interchangeable lens and the intermediate accessory, and the individual identification information of the intermediate accessory is transmitted to the interchangeable lens. Since the individual identification information of the accessory is transmitted to each camera, the camera side can distinguish between the single unit and the intermediate accessory and can perform appropriate correction in each case. Furthermore, since the individual identification information in the intermediate accessory is transmitted to the camera as it is, it is possible to have correction data for each individual of the intermediate accessory on the camera side, and more accurate correction is possible by combining with each individual of the interchangeable lens. You can do it. In addition, when combining an individual interchangeable lens that does not store correction data in the camera with an intermediate accessory that stores correction data, the standard correction can be performed by using the stored intermediate accessory correction data. More accurate correction is possible than when values are used.

[Fifth embodiment]
Next, examples of the intermediate accessory according to Embodiment 7 and the interchangeable lens according to Embodiment 8 will be described.
FIG. 7 is a block diagram illustrating a camera system including the intermediate accessory and the interchangeable lens according to the present embodiment, which is common to the third and fourth embodiments.

Processing of the interchangeable lens 600 in this embodiment will be described with reference to the flowchart of FIG.
"Step 801"
Processing of the interchangeable lens 600 in this embodiment is started.
"Step 802"
It is determined whether or not the intermediate accessory 900 is attached. Specifically, serial communication is started by the communication means 610 that performs communication with the intermediate accessory 900 installed in the interchangeable lens 600, and whether or not the intermediate accessory 900 is mounted by detecting a return signal from the intermediate accessory 900. Determine whether. If it is attached, go to “step 803”, otherwise go to “step 807”.

"Step 803"
A BUSY signal for prohibiting communication with the camera main body 100 is output to the camera main body 100, and communication from the camera main body 100 is prohibited during processing performed in the following "step 804" and "step 805".
"Step 804"
Communication with the intermediate accessory 900 is performed, and the individual identification information stored in the interchangeable lens 600 is transmitted to the intermediate accessory 900.
"Step 805"
Communication with the intermediate accessory 900 is performed, and the corrected individual identification information calculated in the intermediate accessory 900 is received.

"Step 806"
In order to resume communication with the camera body 100, the BUSY signal output from “step 803” is canceled.
"Step 807"
Communication with the camera body 100 is performed, and individual identification information is transmitted to the camera body 100. When the individual identification information to be transmitted here is determined in “step 802” that the intermediate accessory 900 is not mounted, it is determined that the individual identification information of the interchangeable lens 600 itself is mounted. If it is, the corrected individual identification information acquired in “step 806” is transmitted to the camera.
"Step 808"
The processing of the interchangeable lens in this embodiment is finished.

Next, processing of the intermediate accessory 900 of this embodiment will be described using the flowchart of FIG.
"Step901"
Processing of the intermediate accessory 900 in this embodiment is started.
"Step902"
Communication with the interchangeable lens 600 is performed, and individual identification information of the interchangeable lens 600 stored in the interchangeable lens 600 is received.

"Step903"
The individual identification information of the intermediate accessory 900 is added to the individual identification information of the interchangeable lens 600 acquired in “step 902” to create new solid identification information. Although addition is performed in the present embodiment, another calculation may be performed so that individual identification information when the interchangeable lens 600 is a single unit and individual identification information when the intermediate accessory 900 is attached can be distinguished.
"Step904"
The corrected individual identification information created in “step 903” is transmitted to the interchangeable lens 600.
"Step905"
The processing of the intermediate accessory 900 in this embodiment is finished.

  As described above, in the intermediate accessory and the interchangeable lens according to the present embodiment, communication is performed between the interchangeable lens and the intermediate accessory, and new solid identification information is calculated from the individual identification information in the intermediate accessory, and the interchangeable lens side Since the interchangeable lens sends new solid identification information received from the intermediate accessory to the camera side, the camera side can distinguish between when it is a single unit and when the intermediate accessory is mounted, and make appropriate corrections in each case It becomes possible. Furthermore, since the individual identification information is also stored in the intermediate accessory, even when an intermediate accessory of the same type of different individual is attached to a certain interchangeable lens, different individual identification information is calculated for each combination. Correction can be performed.

[Sixth embodiment]
Next, an example of a camera system including the intermediate accessory according to the ninth embodiment and the camera according to the tenth embodiment will be described. FIG. 13 is a block diagram of this embodiment. In the figure, 300 is a camera body, 500 is an interchangeable lens, and 1000 is an intermediate accessory. The camera body 300 includes an electric circuit unit 301. The electric circuit unit 301 measures the amount of light that has passed through the interchangeable lens, and measures the distance from the film surface to the subject. A distance measuring unit 303, a shutter 304 for exposing the film for an appropriate time, a feeding / charging system 305 for winding and rewinding the film, an in-camera CPU 306 for controlling these cameras, an interchangeable lens 500, A communication unit 307 for performing serial communication between the intermediate accessory 1000 and a communication unit 307 for performing serial communication.

In addition, electrical contacts 310, 311 and 312 connected to communicate with the interchangeable lens 500, electrical contacts 313, 314 and 315 connected to communicate with the intermediate accessory 1000, an interchangeable lens 500 and intermediate accessories. Electrical contacts 316 and 317 for supplying power to 1000 are provided.
Further, the camera main body 300 includes a power source 309 for operating the camera system of this embodiment.
Since the interchangeable lens 500 is the same as that described in FIG. 5 of the second embodiment, the description thereof is omitted here.

  In the intermediate accessory 1000, storage means 1001 storing information indicating the type of the intermediate accessory and individual identification information, communication means 1002 for communicating with the camera body 300, and communication lines between the camera body 300 and the interchangeable lens 500. Electrical contacts 1003, 1004, 1005, 1008, 1009, 1010, electrical contacts 1011, 1012, 1013 connected to communicate with the camera body 300, and the power source of the camera body 300 to the interchangeable lens 500 Electrical contacts 1006, 1007, 1014, 1015 are provided.

Next, processing of the camera body 300 in the present embodiment will be described using the flowchart of FIG.
"Step1001"
The processing of the camera body 300 in this embodiment is started.
"Step 1002"
Communication with the interchangeable lens 500 is performed, and individual identification information of the interchangeable lens 500 is acquired.

"Step1003"
It is determined whether or not a correction value corresponding to the individual identification information of the interchangeable lens 500 acquired in “step 1002” is stored. If stored, go to “step 1004”, otherwise go to “step 1005”.
"Step1004"
Since the correction value corresponding to the individual identification information is stored, the correction value is read out.
"Step1005"
Since no correction value is stored, a default correction value which is a standard value is read out.

"Step 1006"
It is determined whether or not the intermediate accessory 1000 is attached. Specifically, serial communication is started by the communication means 308 that performs communication with the intermediate accessory installed in the camera body 300, and whether or not the intermediate accessory 1000 is mounted is detected by detecting a return signal from the intermediate accessory 1000. Judging. If it is attached, go to “step 1007”, otherwise go to “step 1012”.
"Step1007"
The communication means 308 in the camera body 300 communicates with the intermediate accessory 1000 to acquire individual identification information of the intermediate accessory 1000.
"Step 708"
It is determined whether a correction value corresponding to the individual identification information of the intermediate accessory 1000 acquired in “step 707” is stored. If stored, go to “step 1009”, otherwise go to “step 1010”.

"Step1009"
Since the correction value corresponding to the individual identification information is stored, the correction value is read out.
"Step1010"
Since no correction value is stored, a default correction value which is a standard value is read out.
"Step1011"
The final correction value is calculated from the correction value of the interchangeable lens 500 read out in “step 1004” or “step 1005” and the correction value of the intermediate accessory 1000 read out in “step 1009” or “step 1010”.
"Step1012"
A correction operation is performed according to the correction value.
"Step1013"
The processing of the camera in this embodiment is finished.

  As described above, in the camera and the intermediate accessory according to the present embodiment, communication between the camera and the intermediate accessory is performed to acquire the individual identification information of the intermediate accessory, and the interchangeable lens transmits the individual identification information of the interchangeable lens to the camera. On the camera side, it is possible to distinguish between a single camera and an intermediate accessory, and appropriate correction can be performed in each case. Furthermore, since the individual identification information in the intermediate accessory is transmitted to the camera as it is, it is possible to have correction data for each individual of the intermediate accessory on the camera side, and more accurate correction is possible by combining with each individual of the interchangeable lens. You can do it. In addition, when combining an individual interchangeable lens that does not store correction data in the camera with an intermediate accessory that stores correction data, the standard correction can be performed by using the stored intermediate accessory correction data. More accurate correction is possible than when values are used.

[Seventh embodiment]
Next, an example of a camera system including the intermediate accessory according to the eleventh embodiment will be described. FIG. 15 is a block diagram of this embodiment. In the figure, 100 is a camera body, 400 is an interchangeable lens, and 1100 is an intermediate accessory. Since the camera body 100 and the interchangeable lens 400 are the same as those described in FIG. 1 of the first embodiment, description thereof is omitted here.

  In the intermediate accessory 1100, switch means 1101 for switching the communication line between the camera main body 100 and the interchangeable lens 400, a CPU 1102 for performing communication with the camera main body 100 and the interchangeable lens 400, and the like for communicating with the camera main body 100 Electrical contacts 1103, 1104, 1105 to be connected, electrical contacts 1108, 1109, 1110 to be connected to communicate with the interchangeable lens 400, and electrical contacts for outputting information indicating the type of the intermediate accessory 1100 to the interchangeable lens 400 1111, 1112, 1113, and electrical contacts 1106, 1107, 1114, 1115 for connecting the power source of the camera body 100 to the interchangeable lens 400.

Next, processing of the intermediate accessory 1100 in the present embodiment will be described using the flowchart of FIG.
"Step1101"
Processing of the intermediate accessory 1100 in this embodiment is started.
"Step1102"
A BUSY signal for prohibiting communication with the camera main body 100 is output to the camera main body 100, and communication from the camera main body 100 is prohibited during processing performed in the following "step 1103" and "step 1104".

"Step1103"
The communication unit that communicates with the interchangeable lens 400 in the CPU 1102 in the intermediate accessory 1100 communicates with the interchangeable lens 400 to receive individual identification information of the interchangeable lens 400 stored in the interchangeable lens 400.
"Step 1104"
The individual identification information held by the intermediate accessory 1100 and the individual identification information of the interchangeable lens acquired in “step 1103” are added to create new solid identification information. Although addition is performed in the present embodiment, another calculation may be performed so that individual identification information when the interchangeable lens 400 is a single unit and individual identification information when the intermediate accessory 1100 is attached can be distinguished.

"Step 1105"
In order to resume communication with the camera body 100, the BUSY signal output from "step 1102" is canceled.
"Step 1106"
It is determined whether communication performed between the camera body 100 and the interchangeable lens 400 is for communicating individual identification information.

"Step 1107"
Since the communication between the camera body 100 and the interchangeable lens 400 is communication of individual identification information, the switch 1101 is turned off, and the communication between the camera body 100 and the interchangeable lens 400 is performed via the CPU 1102 of the intermediate accessory 1100. Set.
"Step 1108"
The switch 1101 is turned on, and the camera body 100 and the interchangeable lens 400 are set to communicate directly.
"Step 1109"
The corrected individual identification information calculated in “step 1104” is transmitted to the camera body 100.
"Step 1110"
The processing of the intermediate accessory 1100 in this embodiment is finished.

  As described above, in the intermediate accessory according to the present embodiment, in communication between the camera and the interchangeable lens, new individual identification information is obtained from the individual identification information of the interchangeable lens and the individual identification information of the intermediate accessory during communication of the individual identification information. Since it is calculated and transmitted to the camera side, the camera side can distinguish between a single unit and an intermediate accessory mounted, and appropriate correction can be performed in each case. In addition, the interchangeable lens and the camera body may remain the conventional specifications, and the scale of change as a camera system may be small.

1 is a block diagram of a camera system according to a first embodiment of the present invention. It is a flowchart explaining the process of the interchangeable lens in FIG. It is a flowchart explaining the process of the camera main body in FIG. It is a flowchart explaining the process of the camera main body in FIG. It is a block diagram of the camera system which concerns on the 2nd Example of this invention. It is a flowchart explaining the process of the camera main body in FIG. It is a block diagram of the camera system which concerns on the 3rd-5th Example of this invention. It is a flowchart explaining the process of the interchangeable lens which concerns on the 3rd Example of this invention. It is a flowchart explaining the process of the interchangeable lens which concerns on the 4th Example of this invention. It is a flowchart explaining the process of the camera main body which concerns on the 4th Example of this invention. It is a flowchart explaining the process of the interchangeable lens which concerns on the 5th Example of this invention. It is a flowchart explaining the process of the intermediate | middle accessory which concerns on the 5th Example of this invention. It is a block diagram of the camera system which concerns on the 6th Example of this invention. It is a flowchart explaining the process of the camera main body in FIG. It is a block diagram of the camera system which concerns on the 7th Example of this invention. It is a flowchart explaining the process of the intermediate | middle accessory in FIG.

Explanation of symbols

100, 200, 300: Camera body 101, 201, 301: Electric circuit section in camera body 102, 202, 302: Photometry section 103, 203, 303: Distance measurement section 104, 204, 304: Shutter 105, 205, 305: Feeding charge system 106, 206, 306: CPU in camera body
107, 207, 307, 308: Communication means 108, 208, 309: Power supply 109-113, 209-216, 310-317: Electrical contacts in the camera body 400, 500, 600: Interchangeable lens 401, 501, 601: Focusing lens
402, 502, 602: Zooming lenses 403, 503, 603: Apertures 404, 504, 604: Zoom position detection brushes 405, 505, 605: Focus position detection brushes 406, 506, 606: A / M switches 407, 507 607: In-interchangeable lens electric circuit section 408, 508, 608: In-lens CPU
409, 509, 609, 610: communication means 410, 510, 611: lens drive control unit 411, 511, 612: lens drive motor 412, 512, 613: aperture control unit 413, 513, 613: aperture drive motor 414 514, 615: Pulse generation means 415-422, 515-519, 616-623: Interchangeable lens electrical contacts 700, 800, 900, 1000, 1100: Intermediate accessories 701, 801: Signal generation means 901, 1001: Storage means 1101: Switch 1102: CPU in intermediate accessory
902, 1002: Communication means 702-714, 802-814, 903-915, 1003-1015, 1103-1115: Electrical contacts in intermediate accessories

Claims (12)

An interchangeable lens having storage means for storing individual identification information; a camera body having correction means that can be attached to the interchangeable lens and corrects various parameters based on individual identification information of the interchangeable lens; and the camera body. An interchangeable lens camera system comprising means for communicating with an interchangeable lens, and an intermediate accessory that can be mounted between the camera body and the interchangeable lens,
When the intermediate accessory is attached, the individual identification information or type of the attached intermediate accessory is determined, and information obtained by changing the individual identification information of the interchangeable lens according to the determination result is replaced with the interchangeable lens individual identification information. Or an individual identification information changing means for transmitting the information of the discrimination result together with the interchangeable lens individual identification information to the correction means. The camera body is configured to be able to communicate between the lenses, and the interchangeable lens side has storage means for storing individual identification information for identifying individual individuals, and the interchangeable lens communicates between the camera body and the lenses. The individual identification information stored in the storage means is transmitted to the camera body, and the camera body has identification means for identifying the interchangeable lens based on the individual identification information, and matches the individual of the interchangeable lens according to the identification result of the identification means. An interchangeable lens of an interchangeable lens camera system that can perform various corrections,
A detecting unit for detecting that an intermediate accessory to be mounted between the camera body and the interchangeable lens is mounted; and a determining unit for determining the type of the mounted intermediate accessory. The detecting unit detects the intermediate accessory. In this case, the interchangeable lens is characterized in that the individual identification information stored in the lens is changed according to the discrimination result by the discrimination means and transmitted to the camera body. The camera body is configured to be able to communicate between the lenses, and the interchangeable lens side has storage means for storing individual identification information for identifying individual individuals, and the interchangeable lens communicates between the camera body and the lenses. The individual identification information stored in the storage means is transmitted to the camera body, and the camera body has identification means for identifying the interchangeable lens based on the individual identification information, and matches the individual of the interchangeable lens according to the identification result of the identification means. The camera body of the interchangeable lens camera system that can perform various corrections,
A detecting unit for detecting that an intermediate accessory to be mounted between the camera body and the interchangeable lens is mounted; and a determining unit for determining the type of the mounted intermediate accessory. The detecting unit detects the intermediate accessory. In the case of the camera body, various corrections are made by adding a change corresponding to the discrimination result of the discrimination means to the discrimination result of the discrimination means. An intermediate accessory mounted between the interchangeable lens of the interchangeable lens camera system and the camera body,
It has a storage means for storing individual identification information for identifying individual individuals, and a communication means for communicating with the interchangeable lens. The communication means communicates with the interchangeable lens, and the storage means An intermediate accessory for transmitting stored individual identification information to an interchangeable lens. The camera body is configured to be able to communicate between the lenses, and the interchangeable lens side has storage means for storing individual identification information for identifying individual individuals, and the interchangeable lens communicates between the camera body and the lenses. The individual identification information stored in the storage means is transmitted to the camera body, the camera body identifies the interchangeable lens based on the individual identification information, and can perform various corrections according to each individual of the interchangeable lens based on the identification result. An interchangeable lens for an interchangeable lens camera system,
The second communication means for communicating with the intermediate accessory according to claim 4, the individual identification information of the interchangeable lens stored in the storage means, and the individual identification of the intermediate accessory obtained by communication by the second communication means An interchangeable lens, comprising: computation means for performing computation processing determined in advance with information, and transmitting a computation result by the computation means to the camera body as individual identification information of the interchangeable lens. The camera body is configured to be able to communicate between the lenses, and the interchangeable lens side has storage means for storing individual identification information for identifying individual individuals, and the interchangeable lens communicates between the camera body and the lenses. The individual identification information stored in the storage means is transmitted to the camera body, the camera body identifies the interchangeable lens based on the individual identification information, and can perform various corrections according to each individual of the interchangeable lens based on the identification result. An interchangeable lens for an interchangeable lens camera system,
5. An intermediate accessory having second communication means for communicating with the intermediate accessory according to claim 4, and obtained by communication with the individual identification information of the interchangeable lens stored in the storage means and communication by the second communication means. Each of which is transmitted to the camera body.   A communication means for communicating with the interchangeable lens according to claim 6, wherein the individual identification information of the interchangeable lens and the individual identification information of the intermediate accessory acquired by the communication means are used to combine each individual of the interchangeable lens and the intermediate accessory. An interchangeable lens camera body that can perform various corrections. An intermediate accessory mounted between the interchangeable lens of the interchangeable lens camera system and the camera body,
Storage means for storing individual identification information for identifying individual individuals, communication means for communicating with the interchangeable lens, individual identification information of intermediate accessories stored in the storage means, and communication by the communication means An intermediate accessory comprising: a calculation unit that performs a predetermined calculation process with the individual identification information of the interchangeable lens acquired in step 1; and transmitting a calculation result by the calculation unit to the interchangeable lens. The camera body is configured to be able to communicate between the lenses, and the interchangeable lens side has storage means for storing individual identification information for identifying individual individuals, and the interchangeable lens communicates between the camera body and the lenses. The individual identification information stored in the storage means is transmitted to the camera body, the camera body identifies the interchangeable lens based on the individual identification information, and can perform various corrections according to each individual of the interchangeable lens based on the identification result. An interchangeable lens for an interchangeable lens camera system,
9. A second communication means for communicating with the intermediate accessory according to claim 8; and a camera using the calculation result of the intermediate accessory according to claim 7 acquired by communication by the second communication means as individual identification information of the interchangeable lens. An interchangeable lens that is transmitted to the main body. An intermediate accessory mounted between the interchangeable lens of the interchangeable lens camera system and the camera body,
It has a storage means for storing individual identification information for identifying each individual, and a communication means for communicating with the camera. The communication means communicates with the camera body and stores it in the storage means. An intermediate accessory for transmitting the individual identification information to the camera body.   It has the 1st communication means for communicating with the interchangeable lens which has individual identification information, and the 2nd communication means for communicating with the intermediate accessory of Claim 10, and it acquires by the 1st communication means The interchangeable lens is identified from the individual identification information of the interchangeable lens, the intermediate accessory is identified from the individual identification information of the intermediate accessory acquired by the second communication means, and the identification result is matched to each individual combination of the interchangeable lens and the intermediate accessory. An interchangeable lens camera body that can perform various corrections. An intermediate accessory mounted between the interchangeable lens of the interchangeable lens camera system and the camera body,
Correction calculation means for receiving individual identification information of the interchangeable lens transmitted from the interchangeable lens toward the camera body, performing a predetermined correction process on the individual identification information, and generating correction information; and the correction information. An intermediate accessory comprising: an individual identification information correction transmission unit that transmits information toward the camera body; and an information transmission unit that transmits information other than the individual identification information as it is toward the camera body.

Images