pickup element to a direction vertical to an optical axis of a photographing lens and longitudinal and lateral directions which are perpendicular to each other so as to adjust the image pickup element in the best embodiment of the present invention the digital camera includes a longitudinal direction position adjusting mechanism and a lateral direction position adjusting mechanism that press to attach an image pickup substrate mounted with the image pickup element to be attached to a front surface or a rear surface of a frame body frame in a camera main body using a plate spring or the like and independently move the image pickup substrate to a longitudinal direction and a lateral direction of the image pickup substrate as a result the position of the image pickup element can be adjusted so that an image projected by the photographing lens is imaged in a predetermined position on the image pickup element the image pickup substrate mounted with the image pickup element is mounted to the frame of the camera main body in a sliding state and a rack is mounted to both ends of the image pickup substrate the racks can be driven and adjusted directly by one pinion and in this case a posture of the image pickup substrate is restrained and a position of the image pickup substrate in a lengthwise direction of the pinion is fee similarly a rack and a pinion are provided to one end in a direction perpendicular to the above racks and the pinion and the position of the image pickup substrate in the direction perpendicular to above mentioned direction can be adjusted to a free position by these provided rack and pinion the position of image pickup.