A digital imaging apparatus and a control method thereof are provided. The digital imaging apparatus includes a body including a display unit configured to output an image signal as an image, and an image encoder; a user input unit comprising an image input unit configured to generate and output an outside image signal that corresponds to an outside image and is not encoded or compressed; and a data interface configured to transmit the outside image signal output by the image input unit to the body, wherein the image encoder is configured to encode the outside image signal, which is received by the body from the data interface, in a predetermined format.