| 摘要 |
PROBLEM TO BE SOLVED: To improve AF accuracy by accurately obtaining focus lens position information when obtaining a contrast value when operating a contrast AF during the consecutive movement of the focus lens. SOLUTION: The position of a photographic lens 21 along the optical axis P is detected when a synchronous signal BL_SYNC changes to a high level. The detected position information of the photographic lens 21, for example, the pieces of position information a11, a12, a13, a14, and so on of the photographic lens 21 in the case of, for example, a regular exposure time are stored in a buffer memory 30-1. The pieces of position information a11, a12, a13, a14, and so on of the photographic lens 21 of the photographic lens stored in the buffer memory 30-1 are transmitted to a BCPU 60. COPYRIGHT: (C)2010,JPO&INPIT |
