Patent ID: 7474349

Claim:
An image-taking apparatus, comprising: an image-pickup portion comprising a plurality of image-pickup regions, and a plurality of image-forming portions respectively corresponding to the plurality of image-pickup regions, the plurality of image-forming portions comprising a combination of image-forming portions that form object images on the corresponding image-pickup regions, by using light of mutually different wavelength regions, wherein the image-forming portions constituting the combination have mutually different F numbers, by virtue of having mutually different aperture diameters of stops arranged in parallel, and wherein the following condition is satisfied: F L <F S where λ L is a longer wavelength and λ S is a shorter wavelength among the center wavelengths of the wavelength regions of the light used by the combination of image-forming portions, F L is the F number of the image-forming portion by using the light of the wavelength λ L and F S is the F number of the image-forming portion using the light of the wavelength λ S .