| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an interchangeable lens type camera capable of correcting focusing displacement caused by insertion/extraction of an ND filter incorporated in a camera body and capturing an image in a favorably focused state when capturing images including moving images. <P>SOLUTION: The interchangeable lens which is mountable on an image pickup apparatus and allows insertion/extraction of an optical filter causes storage means to prestore first information on a ratio of a moving distance of a focus lens to a moving distance of an imaging position of the focus lens for each position of the focus lens. When the insertion state of the optical filter is changed, lens-side control means in the interchangeable lens receives the moving distance of the imaging position from the image pickup apparatus, determines the moving distance of the focus lens on the basis of the moving distance of the imaging position and the first information corresponding to the position of the focus lens, and controls the driving of the focus lens. <P>COPYRIGHT: (C)2013,JPO&INPIT |
