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Camera moves & transitions, part 2 · #07
Locked-off shot
Camera fixed; only the subject moves. A person crosses in front of a tripod-fixed camera and a car passes behind; the camera does not move by a pixel.
Camera Movementlocked-offlocked offstatic shotfixed cameratripodstaticstill camera
Full motion specification
How the movement works
To make the subject stand out by contrast, for fixed-point observation, or as a base for time-lapse and compositing.
- 01Camera: completely fixed (height 1.4 m, facing forward, focal length 330 px); only the subjects move
- 02Subject: a person crosses left to right at constant speed 6.5 m ahead (x = -6.2 m → +6.2 m in 4.7 s); legs and arms swing by sin(u×7)×0.42 rad
- 03A grey car crosses right to left 15 m away (x = +16 m → -16 m in 4.7 s)
- 04Both start and end outside the frame, so it loops seamlessly every 4.7 s
- 05A grey tripod mark at bottom left; top-right readout shows "LOCKED" (#040 Freeze frame stops the footage time; here time runs and only the camera is still)
Prompt
Locked-off shot of the crossing: camera fixed on a tripod, only the people and cars pass through.