1. An image shooting system having an image shooting apparatus and a server which connects to the image shooting apparatus through the Internet, wherein the image shooting apparatus comprises: a unit for recording a model of the apparatus, and image shooting condition parameters including an exposure, a shutter speed and/or a white balance, as meta-information in a file of an image taken; a communication interface for connecting the image shooting apparatus to the server, sending the image file to the server, receiving from the server, optimal image shooting condition parameters for optimizing an image quality of the image file, and storing the optimal image shooting condition parameters in the image shooting apparatus; and a unit for retrieving, according to a selection by a user, the optimal image shooting condition parameters received from the server and setting them as image shooting conditions for the image shooting apparatus, wherein the server comprises: a unit for obtaining the image file from the image shooting apparatus via the communication interface; a unit for reading the meta-information of the image file and determining the model of the image shooting apparatus; an optimal image shooting condition parameter calculation unit for analyzing an image quality of the image file based on a predetermined algorithm, and for calculating, based on the determined model, optimal image shooting condition parameters for the model for taking the image; and a unit for sending the optimal image shooting condition parameters to the image shooting apparatus.