摘要 |
<P>PROBLEM TO BE SOLVED: To enable a focus detection which does not depend on a luminance distribution on an image plane. <P>SOLUTION: When a focus detection is performed with an exposure suitable for recording, a focus detection accuracy may degrade because of an output saturation (A) of focus detection pixel data. An image deviation amount detection operation is performed based on the focus detection pixel data read out by performing an exposure control of an image sensor with the exposure suitable for a selected focal point detection area, and a defocus amount is calculated. The output saturation of the focus detection pixel data is avoided by means of the exposure suitable for the focal point detection area (B), and the focus detection accuracy does not degrade. <P>COPYRIGHT: (C)2012,JPO&INPIT |