A camera wherein a front housing which contains a photographing optical system, an exposure device, etc. is connected by a foldable connecting device such as a bellows or the like to a rear housing which contains a photosensitive material to be exposed to light, a view finder optical system, etc. During photographing, the foldable connecting device is stretched to adjust the distance between the front and rear housings to a distance suitable for photographing. When the camera is not in use, the connecting device is contracted to being the front and rear housings very close to each other. An electrical wiring arrangement of a flexible material is either provided on the surface of the bellows or formed together with the bellows as an integral part of the bellows when it is formed in such a way as to be stretchable and contractable together with the bellows, the wiring service to electrically connect the components disposed in the front housing to those disposed in the rear housing. In our embodiment, a main switch disposed in the rear housing is operable from a switch control device in the front housing when the bellows is fully expanded.