Patent ID: 9742982
Date: 2017-08-22
CPC Classifications: G02B,G03B,H04N

Claim:
1. An image capturing apparatus capable of attaching to a detachable converter lens and executing automatic focus detection of an imaging optical system using an image signal obtained from a set focus detection region, the image capturing apparatus comprising: a first acquisition unit configured to acquire first information on aberrations of the imaging optical system, wherein pieces of the first information correspond to positions of a plurality of focus detection regions, respectively; a second acquisition unit configured to acquire second information which is related to information on a magnification of the converter lens in a case where the converter lens is mounted; a processor; and a memory containing instructions that, when executed by the processor, cause the processor to perform operations comprising: wherein in converting the first information, information on the positions of the focus detection regions related to the first information is converted based on the magnification of the converter lens.