Camera system

Abstract

A camera system includes a lens unit, a mount, a camera body, and a control unit. The lens unit includes at least one lens unit operation portion and changes the magnification of an optical image electrically. The mount supports removably the lens unit. The camera body includes at least one camera body operation portion. The control unit controls the lens unit so as to change the magnification of an optical image electrically in response to either one of the operation of the camera body operation portion or the operation of the lens unit operation portion. The control unit controls the lens unit so as to execute an operation that is different from the operation which changes the magnification of an optical image, in response to the other of the operation of the camera body operation portion or the operation of the lens unit operation portion.

What is claimed is: 
     
         1 . A camera system comprising:
 an interchangeable lens configured to be mounted to a camera body, the interchangeable lens including:
 an operation portion configured to accept an operation by a user, the operation being an input for a first function of the camera system; and 
   a camera body including:
 an image sensor, 
 a body mount configured to send a command to an interchangeable lens mounted thereto, and 
 a controller configured to change the operation portion to accept the operation and apply the input to a second function rather than the first function when the interchangeable lens is incompatible with the first function of the camera system. 
   
     
     
         2 . The camera system according to  claim 1 , wherein:
 the first function is a zoom function.   
     
     
         3 . The camera system according to  claim 1 , wherein:
 the controller is further configured to change the operation portion to accept the operation and apply the input to a third function, rather than the first function and second function;   the third function using the input to enlarge or reduce an image, that has been captured and stored, during reproduction of the image.   
     
     
         4 . The camera system according to  claim 1 , wherein:
 the second function is exposure correction.   
     
     
         5 . The camera system according to  claim 1 , wherein:
 the second function is stop-down.   
     
     
         6 . The camera system according to  claim 1 , wherein:
 the second function is changing ISO sensitivity.   
     
     
         7 . The camera system according to  claim 1 , wherein:
 the second function is changing white balance.   
     
     
         8 . The camera system according to  claim 1 , wherein:
 the second function is shutter speed adjustment.   
     
     
         9 . The camera system according to  claim 1 , wherein:
 the second function is changing image resolution.   
     
     
         10 . The camera system according to  claim 1 , wherein:
 the second function is changing number of pixels.   
     
     
         11 . The camera system according to  claim 1 , wherein:
 the second function is changing dark correction level.   
     
     
         12 . The camera system according to  claim 1 , wherein:
 the second function is changing drive mode.   
     
     
         13 . The camera system according to  claim 1 , wherein:
 the second function is changing an Auto-Focus (AF) target.   
     
     
         14 . The camera system according to  claim 1 , wherein:
 the second function is changing an AF mode.   
     
     
         15 . The camera system according to  claim 1 , wherein:
 the second function is changing an Auto-Exposure (AE) mode.   
     
     
         16 . The camera system according to  claim 1 , wherein:
 the second function is changing an AF drive mode.   
     
     
         17 . The camera system according to  claim 1 , wherein:
 the second function is scrolling through reproduced images.   
     
     
         18 . The camera system according to  claim 1 , wherein:
 the second function is scene selection.   
     
     
         19 . The camera system according to  claim 1 , wherein:
 the second function is changing filters including film mode.