A DP’s primary responsibility is to translate a director’s vision into a cohesive visual narrative. Martina Smeraldi, as a DP, would work closely with directors, producers, and production designers to establish the film’s aesthetic. Her expertise in framing, exposure, and camera movement would determine how storytelling unfolds visually. For instance, in a historical drama, she might employ naturalistic lighting and symmetrical compositions to evoke a sense of timelessness, while a sci-fi thriller could rely on stark contrasts and dynamic angles to heighten tension.