Camera system for a vehicle comprising an objective lens; a first printed circuit board provided with an image sensor for acquiring image information via the objective lens; and at least one additional printed circuit board adapted for providing a predetermined basic function for the camera system, wherein the first printed circuit board and each of the at least one additional printed circuit board comprises at least a connection unit, wherein the printed circuit boards are electrically connectable in a modular exchangeable manner, respectively, via the at least one connection unit for adapting the range of functions of the camera system according to the predetermined basic function.