A camera comprising: a first panel comprising a plurality of lens units to capture an image, the lens units being disposed on one side of the first panel; a second panel that is rotatably connected to one edge of the first panel so that the first panel and the second panel rotate relative to each other between a first position contacting the one side of the first panel and a second position contacting the other side of the first panel; an electronic mirror display unit to display an image if a signal is applied to the electronic mirror display unit, and to reflect light if a signal is not applied to the electronic mirror display unit, the electronic mirror display unit being disposed at one side of the second panel corresponding to the one side of the first panel at the first position; a rotation detecting unit to detect a rotation angle between the first panel and the second panel; a touch panel to receive a user's touch; and a controlling unit that is electrically connected to the rotation detecting unit and the electronic mirror display unit and is to control the electronic mirror display unit according to the rotation angle detected by the rotation detecting unit to select at least one from among a plurality of functions and to perform the at least one function, wherein the controlling unit is to change a function to be performed in correspondence to the range of the rotation angle detected by the rotation detecting unit and based on the user's touch of the touch panel, wherein, when the rotation angle between the first panel and the second panel is in the range of an obtuse angle, the electronic mirror display unit is to display an image on one region of the electronic mirror display unit, and the electronic mirror display unit is to illuminate a subject by emitting illumination light from another region of the electronic mirror display unit, wherein the electronic mirror display unit is to change a color of the illumination light so as to change a color of the subject, and wherein the electronic mirror display unit is to display guide marks for changing the color of the illumination light in the one region of the electronic mirror display unit. a first panel comprising a plurality of lens units to capture an image, the lens units being disposed on one side of the first panel; a second panel that is rotatably connected to one edge of the first panel so that the first panel and the second panel rotate relative to each other between a first position contacting the one side of the first panel and a second position contacting the other side of the first panel; an electronic mirror display unit to display an image if a signal is applied to the electronic mirror display unit, and to reflect light if a signal is not applied to the electronic mirror display unit, the electronic mirror display unit being disposed at one side of the second panel corresponding to the one side of the first panel at the first position; a rotation detecting unit to detect a rotation angle between the first panel and the second panel; a touch panel to receive a user's touch; and a controlling unit that is electrically connected to the rotation detecting unit and the electronic mirror display unit and is to control the electronic mirror display unit according to the rotation angle detected by the rotation detecting unit to select at least one from among a plurality of functions and to perform the at least one function, wherein the controlling unit is to change a function to be performed in correspondence to the range of the rotation angle detected by the rotation detecting unit and based on the user's touch of the touch panel, wherein, when the rotation angle between the first panel and the second panel is in the range of an obtuse angle, the electronic mirror display unit is to display an image on one region of the electronic mirror display unit, and the electronic mirror display unit is to illuminate a subject by emitting illumination light from another region of the electronic mirror display unit, wherein the electronic mirror display unit is to change a color of the illumination light so as to change a color of the subject, and wherein the electronic mirror display unit is to display guide marks for changing the color of the illumination light in the one region of the electronic mirror display unit.