Patent ID: 8237803

Claim:
A digital single lens reflex camera with an imaging sensor and a return mirror, the camera comprising: a focusing section that performs focus detection based on a contrast scheme using the imaging sensor; a motion detecting section that detects a speed of the subject based on an image on the imaging sensor; a control section that performs camera shake correction according to the speed of the subject detected in the motion detecting section; a camera shake correcting section that is mounted in at least one of a camera body and a replacement lens and that corrects shake of an optical image caused by motion of the camera body; and a detecting section that detects the presence and absence of the camera shake correcting section on the replacement lens side, wherein the focusing section, the motion detecting section and the control section enter operation mode while the return mirror is retracted from the optical axis, wherein the control section increases an amplification factor of the image or shortens an exposure time when the subject speed detected in the motion detecting section is equal to or higher than a threshold, or controls the camera shake correcting section to execute camera shake correction when the subject speed detected in the motion detecting section is lower than the threshold, and wherein, when the replacement lens has the camera shake correcting section, the control section controls the camera shake correcting section via an interface section.