1. An imaging apparatus comprising: an optical system; an imaging unit that captures a subject image which is input via the optical system and generates an image signal; an image processor that performs predetermined processing on the image signal generated by the imaging unit and generates moving image data; a display unit that displays an image represented by the moving image data; and a control unit that controls the image processor and the display unit, wherein the control unit records the moving image data and in a recording medium, and after completion of recording the moving image data, the control unit generates a still image from the recorded moving image data by selecting one of all or a part of a plurality of frame images composing the recorded moving image data based on an image specified by a user on a setting image or an area of the image specified by the user on the setting image, and the display unit displays one of the plurality of frame images as the setting image, the setting image provided for the user to specify a frame image which is to be selected or a region, of the setting image, which is desired to be focused, and adds highlighting to an in-focus portion in the setting image.