A vision system for a vehicle includes multiple cameras disposed at a vehicle each having a field of view exterior of the vehicle. A display device is operable to display, for viewing by a driver of the vehicle, at least one of (a) video images captured by at least some of the cameras and (b) a composite image formed from image data captured by at least some of the cameras. The image data captured by at least some of the cameras is sent to a central video/image processor and the sent image data is substantially unmodified and is as captured by the respective ones of the camera or cameras. At least one of the cameras may have a tunable lens. The camera may provide almost raw image data to the display device and a graphic engine may run as a routine at the display device.