The normal image, even when shooting a narrowband images simultaneously, to provide an imaging apparatus and a capsule endoscope capable of obtaining a narrow band image of high quality. Imaging device, a light in which a plurality of pixels arranged in a grid pattern are respectively received light to photoelectric conversion, an imaging device 230 that generates an electrical signal, a plurality of first band-pass filter which transmits light of primary colors or complementary wavelength band When a second band-pass filter which transmits narrow band of light having a maximum outside the range of the wavelength band of the light transmitted through the first band-pass filter, a filter unit comprising, arranged in correspondence with the plurality of pixel colors a filter 231, has a convex profile, at least one of the upper and lower limits of the wavelength taking half of the maximum value of the light spectrum of the light source, the maximum value of the transmission spectrum of the second band-pass filter includes a light source unit 24 for irradiating light is between the upper limit and the lower limit of the half value taking wavelength, the.