Image stabilization apparatus, image capturing system, and method for controlling the same

An image capturing system that includes a lens having an imaging optical system, and an image capturing apparatus to which the lens is removably attached, the image capturing system comprising:

• at least one shake detector configured to detect a shake of the image capturing system;
• a processor;
• and
• a memory holding a program which makes the processor function as:
• a generation unit configured to generate a first shake correction signal and a second shake correction signal based on a shake signal corresponding to a detection result from the at least one shake detector, the generation unit extracting a low-frequency band signal from the shake signal, changing an amplitude of the extracted low-frequency band signal to generate the first shake correction signal, and generating the second shake correction signal based on the change in the amplitude and the shake signal;
• and
• first and second shake correction units configured to correct a shake of an image based respectively on the first and second shake correction signals generated by the generation unit.

A method for controlling an image stabilization apparatus comprising:

• detecting a shake;
• generating a first shake correction signal and a second shake correction signal based on a shake signal corresponding to a detection result of the detecting of a shake, wherein a low-frequency band signal is extracted from the shake signal, an amplitude of the extracted low-frequency band signal is changed to generate the first shake correction signal, and the second shake correction signal is generated based on the change in the amplitude and the shake signal;
• correcting the image blur based on the second shake correction signal generated during the generating;
• and
• transmitting the first shake correction signal generated during the generating, to a second image stabilization apparatus.

A method for controlling an image capturing system that includes a lens having an imaging optical system and an image capturing apparatus to which the lens is removably attached, the method comprising:

• detecting a shake of the image capturing system, using at least one shake detector;
• generating a first shake correction signal and a second shake correction signal based on a shake signal corresponding to a detection result of the detecting of a shake, wherein a low-frequency band signal is extracted from the shake signal, an amplitude of the extracted low-frequency band signal is changed to generate the first shake correction signal, and the second shake correction signal is generated based on the change in the amplitude and the shake signal;
• and
• performing first and second shake correction to correct a shake of an image based respectively on the generated first and second shake correction signals.