Image pickup apparatus and lens apparatus

Abstract

An image pickup apparatus and a lens apparatus capable of photographing high-grade still images even where an interlace type image pickup element is used are to be provided. When an instruction to photograph a still image is entered, a camera microcomputer generates a timing to intercept light coming incident on a lens according to the aperture value of an iris, and transmits this timing to a lens microcomputer. The lens microcomputer supplies a control signal to an aperture control circuit according to the received timing, and a mechanical shutter is caused to operate as the aperture control circuit closes the iris at high speed.

1 . An image pickup apparatus on which a lens apparatus provided with an aperture unit for controlling the intensity of light passing a lens with an aperture can be detachably mounted, comprising:
 an image pickup element which converts the optical image of an object having come incident via said lens apparatus into electric signals;   a brightness information output unit which supplies said lens apparatus with information regarding the brightness of the object on the basis of the electric signals obtained by said image pickup element;   an aperture value obtaining unit which obtains the aperture value provided by said aperture unit; and   a control unit which, when an instruction to photograph a still image has been entered, generates a timing according to the aperture value obtained by said aperture value obtaining unit to cause said aperture unit to intercept the light having come incident on said lens and transmits said timing to said lens apparatus.   
     
     
         2 - 15 . (canceled)