Air-bearing camera support system — floats on compressed air, not mechanical rails. Delivers ultra-smooth, vibration-free motion impossible with traditional dollies.
If you need a camera that feels like it's floating — not rolling, not sliding, but truly flowing — then you're working with a float. The system uses compressed air instead of tracks or wheels. The camera sits on an air-cushioned pad fed by a compressor unit. No mechanical contact points with the surface, no vibrations, no bumps creeping into the movement.
This sounds theoretical, but it's enormously relevant in practice. You primarily need a float when you want to shoot macro shots or extreme close-ups — in jewelry commercials, product photography, or when you need to isolate high-frequency vibrations from the ground (street, factory, ship decks). The pneumatic movement itself is controlled manually by a grip technician or via a control valve; some setups also allow motorized moves at constant speed. The thing literally glides over the surface — the airflow carries the load.
In practice: setup takes time. You need a stable, level base (or at least relatively level), a portable compressor with enough CFM output, hoses, and someone who understands air pressure balance. Too much pressure = unclean movement, too little = sagging. The float itself is expensive to rent and not justified for every project. But when the shot needs stillness and elegance — when every micro-vibration would be visible — a float is the only honest choice. Some cinematographers combine the float with a slider rail behind it to allow for precise lateral movements without compromising the air suspension.
The float fundamentally differs from a dolly or crane in its passive vibration behavior. A dolly rolls; a float flows. This isn't meant poetically — it's a physical difference that translates into the footage.