1. A method for producing a magnified Three Dimensional (3D) image of an object having a parallax modified according to the magnification, the method comprising the following procedures: acquiring a first image of said object by a first camera and acquiring a second image of said object by a second camera; determining a magnification parameter; generating a first magnified image by magnifying a portion of said first image containing said object according to said magnification parameter, and generating a second magnified image by magnifying a portion of said second image containing said object according to said magnification parameter, wherein a parallax of said object in said first and second magnified images is the same as a parallax of said object in said first and second images; modifying a geometry of said first magnified image and of said second magnified image as a function of said magnification parameter, thereby producing a first modified image and a second modified image, wherein said object has a modified parallax in said first modified image and in said second modified image, wherein a magnification-simulated object distance simulated by first and second magnified images corresponds to said modified parallax; and displaying said magnified 3D image to a user by displaying said first modified image and said second modified image.