Rack Focus

The focus shifts while the camera stays put, carrying the viewer's attention from the foreground to the background.

Rack Focus AI Video Prompt

Rack focus: The alarm is already sounding in the very first frame, its red light flashing, striking the floor and the archive shelves pulse after pulse. In the foreground, the crystal hanging at the end of the band of light is sharp; as the focus moves to the background, the crystal blurs and Suseka and MeiHua, standing in the middle of the aisle, come into focus: startled by the siren, they flinch their shoulders and turn their heads to look at the crystal hanging behind them.

Camera Control

The camera is fixed in the aisle. The crystal hangs in the right foreground; behind it stand MeiHua and Suseka, with Serelya seated on the floor farther back. For the first second the focus sits on the crystal and the figures are blurry patches; between about 1 and 1.5 seconds the focus pulls back, the crystal melts into a soft blue-white glow, and the characters' clothes and faces sharpen. The red alarm light on the right wall keeps flashing, washing the wall red in pulses.

Place the foreground and background subjects so they don't overlap on screen, so viewers can find the new point of focus after the pull. The camera position and depth of field stay fixed and only the plane of focus moves. Time the pull to the event: here it comes under the alarm, and only after the focus lands on the two women do they turn to look at the crystal.

When a scene needs to hand attention from an object to the people reacting to it, write both focus points and their order into your shot plan, then generate the rack with the AI film maker.

Story Clip

Source film EP2 Shot 2 · Alarm · 00:00–00:05

The alarm is sounding and red light flashes over the walls and shelves. The crystal floats in the foreground; farther down the aisle MeiHua and Suseka turn round to face it, while Serelya still sits on the floor behind them.

What to Watch For

Start with the foreground: at first the crystal's facets are crisp and the figures behind it are barely recognizable. After about a second the zone of sharpness moves back; the crystal turns into a soft glow while Suseka's blue hair and MeiHua's fan come clear. Once focus settles, the two turn toward the camera at about 2.5 seconds, their eyes on the crystal in front. The red light on the right wall keeps pulsing throughout.

Full Source Film