There are provided a first casing 100A that has a photosensor section 113 for capturing an image, a second casing 100B that has a lens section 122 for projecting the image of a subject onto the photosensor section 113 of the first casing 100A and a connection section 100C that foldably connects the first casing 100A with the second casing 100B. The photosensor section 113 and the lens section 122 are arranged so that the photosensor section 113 and the lens section 122 are superposed on each other in a state in which the first casing 100A and the second casing 100B are folded together. With this arrangement, the folding type camera device and the folding type portable telephone equipped with this device can be reduced in thickness.