Patent ID: 8681261

Claim:
An image-capturing apparatus including an image sensor having a plurality of pixel lines, each of the plurality of pixel lines including a plurality of pixels which photoelectrically convert a subject image, comprising: a plurality of pairs of focus detection pixels to detect, by phase difference detection, focus of a lens which forms the subject image, the plurality of pairs of focus detection pixels being arranged in the image sensor at a predetermined pitch, wherein a first focus detection pixel and a second focus detection pixel of each pair of focus detection pixels are arranged at a distance shorter than half of the predetermined pitch, wherein the first focus detection pixel and the second focus detection pixel of each pair of focus detection pixels are respectively arranged in different pixel lines, and wherein, in two adjacent pairs of focus detection pixels that are arranged in a direction perpendicular to a direction of the phase difference detection, layouts of the first focus detection pixel and the second focus detection pixel are switched.