A digital camera comprises an angular velocity detector for detecting angular velocity of a camera body in a yaw direction and a pitch direction. The read address register loads the read address bit into the memory circuit through the read address port during a test of the memory circuit. The first device is externally connected to the second device by wire bonding. The output may indicate how often that each query appeared. Said printed circuit board is located in a fixed position in relation to said axis of rotation of said tubular element andor in relation to said shaft device.