A photographing apparatus comprising: an oscillator configured to output an output signal; a first timing signal generator configured to generate a first timing signal (SVsync); a second timing signal generator configured to generate a second timing signal (DVsync); a phase difference control unit configured to control a phase difference (ΔT) between the first timing signal and the second timing signal to be a predetermined phase difference based on the output signal of the oscillator; a sensor configured to be driven based on the first timing signal; an image processing unit configured to generate an image to be displayed based on an output of the sensor; and a display unit configured to be driven based on the second timing signal and display an image captured on the sensor, wherein the first timing signal and the second timing signal are based on the output signal of the oscillator, and the predetermined phase difference is a sum of a length of a period of time used to photograph on the sensor information of a number of lines required for a display of any line on the display unit and a length of a period of time used to process the information in the image processing unit, wherein the predetermined phase difference is a difference corresponding to an integer multiple of a photographing period of one line on the sensor, wherein the first timing signal generator is configured to generate a first horizontal synchronization signal (SHSync) based on the output signal of the oscillator, and the second timing signal generator is configured to generate a second horizontal synchronization signal (DHSync) based on the output signal of the oscillator, and wherein the predetermined phase difference corresponds to an integer multiple of one cycle of the first horizontal synchronization signal (SHSync). an oscillator configured to output an output signal; a first timing signal generator configured to generate a first timing signal (SVsync); a second timing signal generator configured to generate a second timing signal (DVsync); a phase difference control unit configured to control a phase difference (ΔT) between the first timing signal and the second timing signal to be a predetermined phase difference based on the output signal of the oscillator; a sensor configured to be driven based on the first timing signal; an image processing unit configured to generate an image to be displayed based on an output of the sensor; and a display unit configured to be driven based on the second timing signal and display an image captured on the sensor, wherein the first timing signal and the second timing signal are based on the output signal of the oscillator, and the predetermined phase difference is a sum of a length of a period of time used to photograph on the sensor information of a number of lines required for a display of any line on the display unit and a length of a period of time used to process the information in the image processing unit, wherein the predetermined phase difference is a difference corresponding to an integer multiple of a photographing period of one line on the sensor, wherein the first timing signal generator is configured to generate a first horizontal synchronization signal (SHSync) based on the output signal of the oscillator, and the second timing signal generator is configured to generate a second horizontal synchronization signal (DHSync) based on the output signal of the oscillator, and wherein the predetermined phase difference corresponds to an integer multiple of one cycle of the first horizontal synchronization signal (SHSync).