1. A method for changing a depth at which a recorded image is focused in a portable imaging device, the method comprising: recording an image using an image recording arrangement of the portable imaging device; presenting the recorded image using a display arrangement of the portable imaging device; moving a focusing frame covering a part of the recorded image, presented using the display arrangement, to identify an area of interest in the presented image; analyzing the area of interest within the focusing frame to obtain a setting required to focus the area of interest within the focusing frame, wherein analyzing the area of interest to obtain the setting comprises: obtaining a plurality of intermediate images from the presented image, wherein each of the plurality of intermediate images is focused at a unique distance within the presented image; and determining a setting for an intermediate image, of the plurality of intermediate images, that provides a sharpest image within the focusing frame relative to other one or more of the plurality of intermediate images; and applying the obtained setting to an entirety of the presented image to digitally focus the presented image at a depth defined by a current position of the focusing frame.