1. A vision system for a vehicle comprising: a light source generating an illumination beam; a receiver having a pixel array for capturing an image in response to at least a reflected portion of said illumination beam, said image corresponding to a first horizontal field of view (FOV) angle; and a controller coupled to said light source and said receiver and receiving a vehicle speed input, said controller selecting a portion of said image as a non-linear function of said vehicle speed to generate a second horizontal FOV angle for displaying to the vehicle operator, wherein the second FOV angle is the same as the first FOV angle up to a low speed (LS) threshold value.