Patent ID: 7809260

Claim:
An image capturing apparatus, comprising: an image sensor that photo-electrically converts an object image formed by an optical lens, a focus detection unit that detects the focus state of the object image using an image signal from a focus detection region that is a region that is a portion within a frame of the image sensor, a setting unit that sets at least one of the size and the position of the focus detection region by, when adjusting at least one of the size and the position of a plurality of focus detection regions within the frame, changes the plurality of focus detection regions together as one group, and when adjusting at least one of the size and the position of one focus detection region within the frame, changes the one focus detection region, and a storage unit that stores at least one of the size or the position of the focus detection region separately for the case of the plurality of focus detection regions and the case of one focus detection region respectively, wherein the setting unit performs the setting in a setting mode, and the storage unit, when at least one of the size or the position is set by the setting unit and the setting mode ends, stores at least one of the size or the position of the focus detection region; and wherein the image capturing apparatus has a function to store the optical lens within the body of the image capturing apparatus, and when storing the optical lens, information of at least one of the size and the position of the focus detection region that is stored in the storage unit is reset.