Method and apparatus for image composition using multiple focal length

This image zooming device and method for implementing a focal length optical zooming by using a different number of lens is proposed. An image of a second image zooming method, each corresponding to, among other lens plurality of images obtained a plurality of images of different resolution, the imaging of the same scene, respectively, obtained using the first part of the first image the image zooming method is to determine the second area, by combining the first image and the second region each other composite image is created that contains other resolution area is proposed.