Image stabilization control circuit for correcting vibration-caused displacement of optical axis, and image pickup apparatus provided with the same

An image stabilization control circuit for correcting an optical axis of an image pickup apparatus in response to a vibration thereof, the circuit comprising:

• a first equalizer which generates a vibration-component signal indicating a amount of movement of the image pickup apparatus according to an output signal of a vibration detecting element for detecting the vibration of the image pickup apparatus;
• a second equalizer which generates a drive signal used to control a driver element to correct the position of a lens or image pickup devices, based on an output signal of a position detecting element for detecting the position of the lens to be driven or the image pickup devices to be driven and the vibration-component signal;
• a verifying-signal input circuit which inputs a signal used for verification, to said first equalizer;
• and
• a control unit which verifies an operation of said first equalizer based on the signal used for verification and the vibration-component signal,
• wherein said control unit verifies whether a phase difference in between the signal used for verification and the vibration-component signal is 90 degrees or not.