Camera body and imaging apparatus

Abstract

A camera body is provided, to which an interchangeable lens is mountable, the interchangeable lens including a diaphragm and capable of sending driving speed information of the diaphragm. The camera body has a receiving unit operable to receive the driving speed information of the diaphragm from the interchangeable lens, an imaging unit operable to capture a subject image formed by the interchangeable lens to generate image data, a controller operable to set an imaging condition for the imaging unit, and a sending unit operable to send a control signal for changing brightness information of the interchangeable lens to the interchangeable lens. The controller sets the imaging condition for a period from a start to an end of a driving of the diaphragm according to the received driving speed information of the diaphragm when the sending unit sends the control signal to the interchangeable lens.

1 . A camera body to which an interchangeable lens is mountable, the interchangeable lens including a diaphragm and being capable of sending driving speed information of the diaphragm, wherein
 the camera body comprises:
 a receiving unit operable to receive the driving speed information of the diaphragm from the interchangeable lens; 
 an imaging unit operable to capture a subject image formed by the interchangeable lens to generate image data; 
 a controller operable to control an image capturing operation of the imaging unit; and 
 a sending unit operable to send a control signal to the interchangeable lens for changing brightness information of the interchangeable lens, and 
   the controller regulates an imaging timing of the imaging unit for capturing an image according to the received driving speed information of the diaphragm when the sending unit sends the control signal to the interchangeable lens.   
     
     
         2 . The camera body according to  claim 1 , wherein the controller determines whether or not regulation of the diaphragm is completed according to the received driving speed information of the diaphragm when the sending unit sends the control signal to the interchangeable lens, and delays the imaging timing of the imaging unit for capturing an image when determining that the regulation of the diaphragm is not completed. 
     
     
         3 . The camera body according to  claim 1 , wherein the controller calculates a period from a start to an end of the regulation of the diaphragm according to the received driving speed information of the diaphragm, and matches the imaging timing of the imaging unit for capturing an image with a timing of the end of the regulation of the diaphragm according to the calculated period. 
     
     
         4 . The camera body according to  claim 1 , wherein
 the imaging unit captures the subject image at a predetermined rate expressed by a predetermined frames-per-second,   the controller determines a frame in which the regulation of the diaphragm is completed according to the received driving speed information of the diaphragm, and matches the imaging timing of the imaging unit for capturing an image with the determined frame.   
     
     
         5 . An imaging apparatus comprising an interchangeable lens and a camera body to which the interchangeable lens is mountable,
 the interchangeable lens comprising:
 a diaphragm operable to regulate an amount of light of a subject image collected by an optical system; 
 a storage unit operable to store driving speed information of the diaphragm; and 
 a sending unit operable to send the stored driving speed information of the diaphragm to the camera body, and 
   the camera body comprising:
 a receiving unit operable to receive the driving speed information of the diaphragm from the interchangeable lens; 
 an imaging unit operable to capture the subject image formed by the interchangeable lens to generate image data; 
 a controller operable to control an image capturing operation of the imaging unit; and 
 a sending unit operable to send a control signal to the interchangeable lens for changing brightness information of the interchangeable lens, wherein 
   the controller regulates an imaging timing of the imaging unit for capturing an image according to the received driving speed information of the diaphragm when the sending unit sends the control signal to the interchangeable lens.   
     
     
         6 . The imaging apparatus according to  claim 5 , wherein the controller determines whether or not regulation of the diaphragm is completed according to the received driving speed information of the diaphragm when the sending unit sends the control signal to the interchangeable lens, and delays the imaging timing of the imaging unit for capturing an image when determining that the regulation of the diaphragm is not completed. 
     
     
         7 . The imaging apparatus according to  claim 5 , wherein the controller calculates a period from a start to an end of the regulation of the diaphragm according to the received driving speed information of the diaphragm, and matches the imaging timing of the imaging unit for capturing an image with a timing of the end of the regulation of the diaphragm according to the calculated period. 
     
     
         8 . The imaging apparatus according to  claim 5 , wherein
 the imaging unit captures the subject image at a predetermined rate expressed by a predetermined frames-per-second,   the controller determines a frame in which the regulation of the diaphragm is completed according to the received driving speed information of the diaphragm, and matches the imaging timing of the imaging unit for capturing an image with the determined frame.   
     
     
         9 . A camera body to which an interchangeable lens is mountable, the interchangeable lens including an optical regulating unit and being capable of sending driving speed information of the optical regulating unit, wherein
 the camera body comprises:
 a receiving unit operable to receive the driving speed information of the optical regulating unit from the interchangeable lens; 
 an imaging unit operable to capture a subject image formed by the interchangeable lens to generate image data; 
 a controller operable to control an image capturing operation of the imaging unit; and 
 a sending unit operable to send a control signal to the interchangeable lens for driving of the optical regulating unit, and 
   the controller regulates an imaging timing of the imaging unit for capturing an image according to the received driving speed information of the optical regulating unit when the sending unit sends the control signal to the interchangeable lens.