Devices providing a distortion-free panoramic image covering a 180° field of view, a single frame or a three dimensional image, comprising a multi-camera assembly, which provides images to a light sensor on a related circuit board, which in turn sends the images to a display for a user. The vision system is primarily directed to vehicle vision systems, allowing drivers to see areas behind and around the vehicle, but may be provided in several alternative applications, including a smart phone type assembly, webcam and other cameras, an eyeglasses configuration and a headwear mounted assembly. A device to simplify sensor adjustment to fine tune image displays is also disclosed.