1. A digital camera system comprising: a first storing unit that stores a first feature point; a detecting unit that detects a second feature point from an object image prior to shooting the object image; a display that displays a first marker indicating the second feature point overlaying with the object image; a determination unit that determines whether the second feature point is coincident with the first feature point; a receiving unit that receives an order regarding a priority of a plurality of second feature points from a user; a selecting unit that selects a feature point from the plurality of second feature points in accordance with the priority instructed by the receiving unit when the plurality of second feature points are detected; a display controlling unit that controls to display a second marker, which is different from the first marker overlaying with the second feature point, which is coincident with the first feature point, and a third marker indicating the selected feature point, when the determination unit determines that the second feature point is coincident with the first feature point; a shooting condition setting unit that sets a shooting condition in accordance with the selected feature point; and a shooting unit that shoots the object image on the shooting condition set by the shooting condition setting unit.