A boom up is a vertical camera movement in which the camera rises along a vertical axis using a boom arm, crane, or jib, ascending from a lower position to a higher one while remaining level. Like its counterpart the boom down, the boom up physically elevates the entire camera in space rather than changing the angle of the lens, and is distinct from a tilt which simply pivots the camera upward from a fixed position.

The movement is achieved using cranes, jibs, or motorized vertical rigs capable of lifting the camera smoothly over a range of heights. Boom ups are frequently used to create reveals: starting at a lower, intimate perspective and rising to expose a broader environment or a wider context that was not visible from the original height. The movement carries a connotation of ascent, elevation, or expanding awareness, often used at emotional peaks in narrative filmmaking, at the conclusion of scenes, or in sequences that transition from a human-scale perspective to a godlike overview. Combined with a simultaneous pull back, a boom up can produce a powerful withdrawal effect that distances the viewer from the scene. In drone work, ascending while holding a fixed angle or tilting down to track the ground produces the visual equivalent of a boom up.

When prompting AI video generation, "boom up," "camera rises," or "ascend from ground level" describes this movement clearly. Specifying the start and end height, such as "from eye level rising to rooftop height," helps define the scale of the movement and the spatial context the camera passes through.