In film production, a "2nd cameraman" usually means
the Second Assistant Camera (2nd AC), who handles clapperboard, loads film/cards, marks actor positions, manages camera reports, and supports the 1st AC, or a Second Unit Cameraman, who shoots supplementary footage (stunts, B-roll, establishing shots) often simultaneously with the main unit to save time, working under a dedicated second unit director. Both roles are crucial for efficiency, managing logistics, and ensuring visual continuity, but the 2nd AC is a hands-on crew member, while the second unit cameraman is a specialized cinematographer