| 摘要 |
An image acquisition apparatus includes a plurality of pupil-division lenses configured to pupil-divide a light flux of the object image light passed through an optical imaging system in an area on a surface of an image sensor, a coordinate recording unit configured to record coordinate information to specify the area on the surface of the image sensor, a correction unit configured to execute, based on an optical characteristic of the plurality of pupil-division lenses corresponding to the area and characteristics of the image sensor, a process of correcting the image signal obtained by the image acquisition operation of the image sensor, according to the recorded coordinate information, and a focus detection unit configured to detect a focal point based on selected one of the image signal before the correction process and the image signal after the correction process. |
