Adapter, camera system, and adapter control program

Abstract

An adapter includes: a first mount section that is detachably attached to a camera body; a second mount section that is provided separately from the first mount section and is detachably attached to any one of a plurality of types of interchangeable lenses which are different from each other in a method of controlling a diaphragm; and an accessory control section that controls the diaphragm of the interchangeable lens in response to a common control command which is received from the camera body regardless of the type of the interchangeable lens mounted on the second mount section.

What is claimed is: 
     
       1. An adapter comprising:
 a first mount section that is detachably attached attachable to a camera body; 
 a second mount section that is provided separately from the first mount section and is detachably attached attachable to any one of a plurality of types of interchangeable lenses of which methods of controlling a diaphragm are different from each other; and 
 an accessory control section that controls configured, in response to a common control command receivable from the camera body, to control the diaphragm of one of the plurality of different types of interchangeable lens in response to a common control command which is received from the camera body regardless of the type of the interchangeable lens mounted on the second mount section lenses by physically manipulating an interlocking mechanism of the adapter and to control the diaphragm of another of the plurality of different types of interchangeable lenses by way of electronic communication with the other lens. 
 
     
     
       2. The adapter according to  claim 1 , wherein the accessory control section changes is configured to change a method of driving the diaphragm into a method of driving the diaphragm compatible with the a said interchangeable lens, which is mounted on the second mount section, on the basis of based on lens type information which that indicates the type of the said interchangeable lens. 
     
     
       3. The adapter according to  claim 2 , further comprising a first driving section that generates a driving force for driving the diaphragm,
 wherein the accessory control section is configured to:
 selects, on the basis ofselect, based on the lens type information, either one of the first driving section and a second driving section that is built into the interchangeable lens and generatesgenerate a driving force for driving the diaphragm, and 
 controlscontrol the driving force of the one driving section selected. 
 
 
     
     
       4. The adapter according to  claim 3 ,
 wherein the first driving section includes:
 the interlocking mechanism, which is a diaphragm interlocking mechanism portion that is moved movable to a position corresponding to an aperture diameter of the diaphragm provided in the said interchangeable lens, and 
 a diaphragm interlocking mechanism driving portion that moves the position of the diaphragm interlocking mechanism portion, and 
 
 wherein the accessory control section controls is configured to control the diaphragm interlocking mechanism driving portion so as to thereby move the diaphragm interlocking mechanism portion. 
 
     
     
       5. The adapter according to claim  2  3, wherein when the said interchangeable lens has an optical system control portion that controls an aperture diameter of the diaphragm provided in the interchangeable lens by driving the second driving section, the accessory control section controls is configured to control the optical system control portion in response to the common control command. 
     
     
       6. A camera system comprising:
 an adapter according to  claim 1 ; 
 the camera body mounted on the first mount section; and 
 thea said interchangeable lens mounted on the second mount section. 
 
     
     
       7. A non-transitory computer-readable medium storing an adapter control program for controlling operations of an adapter control section installed in an adapter including a first mount section that is detachably attached attachable to a camera body and a second mount section that is provided separately from the first mount section and is detachably attached attachable to any one of a plurality of types of interchangeable lenses of which methods of controlling a diaphragm are different from each other, the adapter control program comprising instructions for:
 in response to a common control command receivable from the camera body, controlling athe diaphragm of the interchangeable lens in response to a common control command, which is received from the camera body, regardless of the type of the interchangeable lens mounted on the second mount sectionone of the plurality of different types of interchangeable lenses by physically manipulating an interlocking mechanism of the adapter and controlling the diaphragm of another of the plurality of different types of interchangeable lenses by way of electronic communication with the other lens. 
 
     
     
       8. An accessory comprising:
 a first mount that is detachably attachable to a camera body;   a second mount that is detachably and alternately attachable to a first interchangeable lens and to a second interchangeable lens of a different type than the first interchangeable lens, each of the first and second lenses having a diaphragm; and   a controller configured to perform, based on a diaphragm control signal receivable from the camera body, a first diaphragm control by physically manipulating an interlocking mechanism of the accessory if the first interchangeable lens is attached to the second mount and a second diaphragm control by way of electronic communication with the lens if the second interchangeable lens is attached to the second mount.   
     
     
       9. The accessory according to claim 8, wherein
 the interlocking mechanism is part of an actuator for moving the diaphragm of the first interchangeable lens, and   if the first interchangeable lens is attached to the second mount, the controller is configured to control the actuator by the diaphragm control signal receivable from the camera body, and if the second interchangeable lens is attached to the second mount, the controller is configured to transmit to the second interchangeable lens the diaphragm control signal receivable from the camera body.   
     
     
       10. The accessory according to claim 9, wherein
 the interlocking mechanism is a lever for moving the diaphragm of the first interchangeable lens; and   the controller is configured to move the lever based on the diaphragm control signal receivable from the camera body if the first interchangeable lens is attached to the second mount.   
     
     
       11. The accessory according to claim 10, wherein
 if the first interchangeable lens is mounted to the second mount, the controller is configured to move the lever such that an aperture value of the diaphragm of the first interchangeable lens is made to be an aperture value set in the camera body.   
     
     
       12. The accessory according to claim 8, wherein
 the interlocking mechanism is a lever;   the accessory further comprises an actuator that moves the lever, and   if the first interchangeable lens is attached to the second mount, the controller is configured to control the actuator by the diaphragm control signal receivable from the camera body and, if the second interchangeable lens is attached to the second mount, the controller is configured to transmit to the second interchangeable lens the diaphragm control signal receivable from the camera body.   
     
     
       13. The accessory according to claim 9,
 wherein the actuator is configured to be supplied with electrical power from the camera body.   
     
     
       14. The accessory according to claim 9,
 wherein, if the second interchangeable lens is attached to the second mount, the controller is configured to transmit to the second interchangeable lens, based on the diaphragm control signal receivable from the camera body, a signal for controlling the diaphragm of the second interchangeable lens.   
     
     
       15. The accessory according to claim 14, further comprising:
 a communication section configured to communicate with the second interchangeable lens attachable to the second mount,   wherein, if the second interchangeable lens is attached to the second mount, and after the diaphragm control signal is received from the camera body, the controller is configured to transmit to the second interchangeable lens via the communication section a signal for controlling an actuator that drives the diaphragm of the second interchangeable lens.   
     
     
       16. The accessory according to claim 8,
 wherein the controller is configured to perform the first diaphragm control or the second diaphragm control based on interchangeable lens information receivable from the first interchangeable lens or the second interchangeable lens if attached to the second mount.   
     
     
       17. The accessory according to claim 16, further comprising:
 a communication section configured to communicate with the first interchangeable lens or the second interchangeable lens attachable to the second mount,   wherein the controller is configured to perform the first diaphragm control or the second diaphragm control based on the interchangeable lens information, which is receivable by the communication section.   
     
     
       18. The accessory according to claim 17,
 wherein the communication section is configured to receive from an interchangeable lens attachable to the second mount information regarding whether it is (i) the first interchangeable lens having a lever that moves interlockedly with the diaphragm or (ii) the second interchangeable lens having an actuator that drives the diaphragm.   
     
     
       19. The accessory according to claim 17,
 wherein the communication section is configured to receive from an interchangeable lens attachable to the second mount at least one of (i) information regarding a full-aperture F value of the interchangeable lens or (ii) information regarding whether the interchangeable lens performs an anti-vibration function.   
     
     
       20. The accessory according to claim 10, further comprising:
 a detector that detects a position of the lever,   wherein the controller is configured to transmit to the camera body information regarding the position of the lever detected by the detector.   
     
     
       21. An accessory that detachably attaches to a camera body, the accessory comprising:
 a mount that is detachably and alternately attachable to a first interchangeable lens and to a second interchangeable lens of a different type than the first interchangeable lens, each of the first and second interchangeable lenses being provided with a diaphragm; and   a controller configured to perform, based on a diaphragm control signal receivable from the camera body, a first diaphragm control by physically manipulating an interlocking mechanism of the accessory if the first interchangeable lens is attached to the mount and a second diaphragm control way of electronic communication with the lens if the second interchangeable lens is attached to the mount.