Cinematographer plays a vital role in films. If film making is all about storytelling through the vision of the director, then the cinematographer brings this vision alive on screen. cinematography is not only about recording with a camera or handling of camera for that matter. It involves a lot of technicalities like

Composing a shot within a frame

Controlling the exposure

Manipulating the colour temperature

Arrangement of lighting set up as per the demand of the scene and to create the desired mood.

Good Luck!