Lens interchangeable digital camera, and operation method and operation program thereof

An operation method of a lens interchangeable digital camera including an image sensor that outputs image data of a subject, a sensor movement type shake correction mechanism that performs a sensor movement operation of moving the image sensor in a direction to cancel a shake, and a body mount in which a plurality of types of lens units with built-in imaging optical systems for forming a subject image on an imaging surface of the image sensor are interchangeably mounted, the method comprising:

• an acquisition step of acquiring optical characteristic data corresponding to optical characteristics of the imaging optical system of the lens unit mounted in the body mount;
• an image correction step of performing image correction on the image data based on the optical characteristic data;
• a determination step of determining whether or not the acquisition step is able to acquire adaptive optical characteristic data that is the optical characteristic data and is able to be handled in the image correction step;
• and
• an operation deciding step of deciding an operation of the shake correction mechanism according to a determination result of the determination step and restricting at least a part of the sensor movement operation allowed in a correctable state where the image correction based on the adaptive optical characteristic data is possible in an uncorrectable state where the image correction based on the adaptive optical characteristic data is not possible since the acquisition step is not able to acquire the adaptive optical characteristic data.

A non-transitory computer readable medium for storing a computer-executable program for a lens interchangeable digital camera including an image sensor that outputs image data of a subject, a sensor movement type shake correction mechanism that performs a sensor movement operation of moving the image sensor in a direction to cancel a shake, and a body mount in which a plurality of types of lens units with built-in imaging optical systems for forming a subject image on an imaging surface of the image sensor are interchangeably mounted, the computer-executable program causing a computer to execute:

• an acquisition function that acquires optical characteristic data corresponding to optical characteristics of the imaging optical system of the lens unit mounted in the body mount;
• an image correction function that performs image correction on the image data based on the optical characteristic data;
• a determination function that determines whether or not the acquisition function is able to acquire adaptive optical characteristic data that is the optical characteristic data and is able to be handled by the image correction function;
• and
• an operation deciding function that decides an operation of the shake correction mechanism according to a determination result of the determination function and restricts at least a part of the sensor movement operation allowed in a correctable state where the image correction based on the adaptive optical characteristic data is possible in an uncorrectable state where the image correction based on the adaptive optical characteristic data is not possible since the acquisition function is not able to acquire the adaptive optical characteristic data.