An image pickup substrate mounted with an image pickup element is pressed against the surface of a camera body frame by a plate spring, and exclusive position adjusting mechanisms that independently move the image pickup substrate to a vertical direction and a lateral direction are provided. The image pickup substrate is provided so that its position can be adjusted and a projected image by means of a photographing lens is imaged on the image pickup element. Vertical lines and lateral lines are displayed as software display on an electronic display, and their positions can be independently adjusted to the lateral direction and the vertical direction. A dustproof plate is fixed between an interchangeable lens section and a camera main body, so as to prevent dust from adhering to the surface of the image pickup element.