Provided is a digital photographing apparatus that includes a lens unit frame having an opening through which light enters from a forward direction, and having a lens unit to be disposed inside the frame, or having a lens barrel comprising a lens unit to be disposed inside the frame; and a lens unit base disposed at a rear of the frame so as to be coupled to the frame, wherein the frame comprises a first opening through which a printed circuit board (PCB) emerges from the inside of the frame to the outside of the frame, and wherein the frame and the lens unit base are disposed to form a gap therebetween, thereby forming a second opening corresponding to the gap through which a PCB emerges from the inside of the frame to the outside of the frame.