Patent ID: 8379121

Claim:
An image-capturing device comprising: a first image sensor equipped with a plurality of first image-capturing pixels, a plurality of second image-capturing pixels and a plurality of first focus detection pixels, each of which receives one of light fluxes formed by splitting subject light having passed through an optical system, the first image-capturing pixels generating first color signals, the second image-capturing pixels generating second color signals and the first focus detection pixels outputting focus detection signals indicating a state of focus detection pertaining to the optical system; and a second image sensor equipped with a plurality of third image-capturing pixels and a plurality of second focus detection pixels, each of which receives another light flux formed by splitting the subject light, the third image-capturing pixels generating third color signals and the second focus detection pixels outputting focus detection signals indicating a state of focus detection pertaining to the optical system, wherein: when n represents a quantity of the first image-capturing pixels, quantities of the second image-capturing pixels, the third image-capturing pixels, the first focus detection pixels and the second focus detection pixels are n, 2n, 2n and 2n respectively.