A photographing apparatus (100a,100b) comprising: a main body having an image pickup device disposed therein; a display arranged on a front side of the main body; a first cover (120a,120b) disposed on a back side of the main body, and includes a first opening disposed to correspond to a position of the image pickup device; a first connector (160a,160b) formed on the first cover and around the first opening, wherein the first connector is configured to mechanically couple to an external optical component (140,140a,140b,140c) and is disposed so that an optical axis of the image pickup device coincides with an optical axis of the external optical component, when the external optical component is coupled to the first connector; and a second cover (130a, 130b) disposed on the first cover and has a second opening disposed to correspond to the position of the image pickup device; characterised in that the main body further comprises: an optical component identifying unit that identifies a type of the external optical component (140, 140a, 140b, 140c); an optical component controller that generates a control signal to control the external optical component (140, 140a, 140b, 140c) depending on the type of the external optical component, and a photographing apparatus controller that deactivates a function of the photographing apparatus (100a,100b), when the function of the photographing apparatus is redundant of a function of the external optical component (140,140a,140b,140c), depending on the type of the external optical component. a main body having an image pickup device disposed therein; a display arranged on a front side of the main body; a first cover (120a,120b) disposed on a back side of the main body, and includes a first opening disposed to correspond to a position of the image pickup device; a first connector (160a,160b) formed on the first cover and around the first opening, wherein the first connector is configured to mechanically couple to an external optical component (140,140a,140b,140c) and is disposed so that an optical axis of the image pickup device coincides with an optical axis of the external optical component, when the external optical component is coupled to the first connector; and a second cover (130a, 130b) disposed on the first cover and has a second opening disposed to correspond to the position of the image pickup device; characterised in that the main body further comprises: an optical component identifying unit that identifies a type of the external optical component (140, 140a, 140b, 140c); an optical component controller that generates a control signal to control the external optical component (140, 140a, 140b, 140c) depending on the type of the external optical component, and a photographing apparatus controller that deactivates a function of the photographing apparatus (100a,100b), when the function of the photographing apparatus is redundant of a function of the external optical component (140,140a,140b,140c), depending on the type of the external optical component. an optical component identifying unit that identifies a type of the external optical component (140, 140a, 140b, 140c); an optical component controller that generates a control signal to control the external optical component (140, 140a, 140b, 140c) depending on the type of the external optical component, and a photographing apparatus controller that deactivates a function of the photographing apparatus (100a,100b), when the function of the photographing apparatus is redundant of a function of the external optical component (140,140a,140b,140c), depending on the type of the external optical component.