1. A method for operating an array camera including a plurality of camera modules, the method comprising: applying a different camera environment setting from the other camera modules to at least one of the plurality of camera modules; acquiring images through the plurality of camera modules; combining the acquired images, wherein at least one of the plurality of camera modules includes a lens of a different magnification or type from the other camera modules, wherein the plurality of camera modules include a camera module having a wide angle lens and a camera module having a telephoto lens that are arranged alternately; generating a depth map from an image acquired from the camera module having the wide angle lens; and extracting an object area from an image acquired from the camera module having the telephoto lens, wherein the combining comprises giving perspective to a background area based on the depth map and inserting the extracted object area.