An image capturing apparatus including: a display unit comprising a display panel, the display unit configured to display an image including at least one subject; a detection unit comprising detection circuitry, the detection unit configured to detect an input for setting a region of interest in the image; and a controller configured to detect at least one candidate region from the region of interest set based on the input, and set one of the at least one detected candidate region as an auto-focus (AF) region based on priorities of the at least one detected candidate region.