Patent ID: 7483072

Claim:
An image-taking apparatus comprising: an image-pickup device, which performs photoelectrical conversion of an object image formed with a light flux from an image-taking lens; a viewfinder optical system, which is used for optical observation of the object image with the light flux; a focus detecting unit, which detects a focus state of the image-taking lens using the light flux; a mirror unit, which is switchable between a first state to introduce the light flux into the viewfinder optical system and the focus detecting unit, and a second state to introduce the light flux to the image-pickup device and the focus detecting unit; a viewfinder shutter, which opens and closes a viewfinder optical path of the viewfinder optical system; an operation member, which is operated to make the viewfinder shutter open and close; and a controller, which switches the mirror unit between the first state of the mirror unit and the second state of the mirror unit, wherein the controller switches the state of the mirror unit to the first state in accordance with an open-side-operation of the operation member, and switches the state of the mirror unit to the second state in accordance with a close-side-operation of the operation member.