Apparatus and method executed by apparatus
摘要
說明書
For a lens unit having a plurality of imaging optical systems having different optical axes, in principle, to obtain or store optical information (optical axis position, incident angle, and the like) for each imaging optical system. However, for imaging optical systems that share optical information other than the optical axis position, the storage capacity of the lens unit, the image capture apparatus body, and the like can be reduced by obtaining or storing the optical information other than the optical axis position only for one imaging optical system.
As described above, according to the present embodiment, when a lens unit having a plurality of optical axes is attached to an image capture apparatus having one image sensor, information of the positions in the image sensor through which the respective optical axes pass is used to calculate a correction value for the defocus amount calculation processing. Therefore, an appropriate value can be obtained for a correction value that cannot be obtained through a calculation method which assumes a general lens unit having a single optical axis passing through the center of the image sensor. As a result, accurate image plane phase detection-based focus detection can be realized even when a lens unit having a plurality of optical axes is attached to an image capture apparatus having a single image sensor.
