Aerial cinematography from helicopters and planes

Before drones became common, almost every aerial shot in a film came from a helicopter or a light aircraft. They are still essential for shots that need altitude, speed, range or a heavy camera and long lens: following a jet or a car chase on a highway, crossing mountain ranges, flying over a city at night or holding a long lens steady at hundreds of metres. This lesson explains the aircraft and camera systems, the physics of stability and motion blur, how aerial shots are planned and flown, and the rules and safety culture around low-level filming.

Platforms: helicopters, planes and their uses

Each type of aircraft suits different shots.

• Helicopters: can hover, fly slowly, fly sideways and turn tightly, and can land in small spaces. They are the most flexible camera platforms and the most common for film work.
• Light fixed-wing aircraft: faster, longer range and cheaper per hour than many helicopters, useful for high-altitude scenics, following other aircraft and covering large distances, but they cannot hover.
• Jets and specialized camera aircraft: used for air-to-air work with fast aircraft, sometimes with dedicated camera pods or nose mounts.
• Airships and tethered platforms: rare, but used for very steady, long-duration aerial views at events.

The aviation company and pilot decide what each aircraft can do safely. The DP's job is to describe the shot, the speed and altitude needed, and the lens and frame, then let the aerial specialists plan the flight.

Gyro-stabilized camera systems

Aircraft vibrate and move constantly. Early aerial cinematographers used hand-held cameras or simple vibration-isolating mounts, with limited lens lengths. Modern aerial work uses gyro-stabilized heads, often in a ball-shaped housing mounted on the nose or side of the helicopter. Gyroscopes sense rotation, and motors drive the camera in the opposite direction to cancel it, while the operator inside the aircraft controls pan, tilt, roll, zoom and focus remotely.

• Axes: most systems stabilize at least pan, tilt and roll; some add a fourth or fifth axis to reduce residual motion.
• Payload: systems are rated for a maximum camera and lens weight, which limits large-format bodies and long zooms.
• Mounting: the mount must be approved for the aircraft type, usually through engineering documents and aviation authority approval.
• Operators: aerial camera operators are specialists who can frame smoothly at long focal lengths while the aircraft moves.

Why long lenses need extreme stability

The longer the lens, the smaller the angle each photosite covers, and the more any vibration shows on screen. A useful measure is the angle covered by one photosite.

Here p is the photosite pitch and f the focal length, both in the same units, giving an angle in radians.

Motion blur and shutter in the air

Motion blur depends on how fast the subject's image moves across the sensor during the exposure. For a subject moving past the camera at right angles, the image speed on the sensor is approximately the relative speed multiplied by the focal length divided by the distance.

Planning an aerial day

A typical aerial planning process involves the director, DP, aerial coordinator, pilot, first AD and location manager.

• Shot list and storyboards with altitude, speed, direction, lens range and time of day for each shot.
• Route and timing: positioning flights, fuel stops, landing zones and the order of shots to make the best use of light.
• Ground coordination: where picture vehicles, actors, crew and safety personnel will be, and how they communicate with the aircraft.
• Airspace and approvals: low-flight approvals, notices to other airspace users, coordination with air traffic services near airports, and any landowner or municipal permissions for landing zones.
• Weather limits: wind, visibility, cloud ceiling and turbulence limits agreed with the pilot.
• Briefings: a safety briefing for everyone involved before the first flight and a debrief after.

The pilot in command has final authority over the aircraft. If the pilot decides a manoeuvre is unsafe, it does not happen.

Air-to-air and following vehicles

Filming another aircraft, a boat or a car chase from a helicopter is among the most complex aerial work.

• Air-to-air: both pilots plan formation positions, separation distances, break-away procedures and radio calls in detail. Only highly experienced pilots fly formation for filming.
• Car and train chases: the helicopter coordinates with ground vehicles through radio, with road closures and safety zones planned by the stunt coordinator and police where required (car work is covered in Course CINE-330).
• Boats and ships: maritime coordination, safe distances and landing options over water.

Simple shapes and clear speeds make these shots repeatable: a straight line at a constant speed is safer and easier to cut than an improvised pursuit.

Rules for low-level filming in Canada

In Canada, Transport Canada regulates aviation under the Aeronautics Act and the Canadian Aviation Regulations (CARs). Section 602.14 sets minimum altitudes and distances: over built-up areas or open-air assemblies of people, aircraft must normally fly at least 1,000 ft above the highest obstacle within a 2,000 ft radius; elsewhere, at least 500 ft from any person, vessel, vehicle or structure. Low-level film work below these limits needs specific authorization from Transport Canada, typically through the operator's air operator certificate and an approved special flight operations certificate or exemption, along with the aviation company's procedures. Productions should hire an operator experienced in film work who already holds the necessary approvals and works with NAV CANADA when flying in controlled airspace.

Safety culture in aerial filming

Aerial filming has a long history of serious accidents, including fatal crashes during film and television production. Lessons from those accidents shape today's practices.

• Never pressure the pilot. Time and light pressures are real, but the pilot's decision to abort, refuel or wait for weather is final.
• Minimize people near the aircraft and under the flight path. Keep non-essential crew away from landing zones and low-level passes.
• Brief and rehearse. Walk through every manoeuvre on the ground with models or maps before flying it.
• Respect fatigue limits for pilots and aerial crews.
• Plan for emergencies: landing options, fire and rescue coverage, medical response and communication with emergency services.

Course CINE-340 covered production safety systems. On aerial days, these systems are not paperwork; they keep people alive.

Matching aerial footage to the rest of the film

Aerial shots are often shot by a second unit, sometimes weeks apart from main unit, so the DP must plan how they will match.

• Use the same camera family, recording settings and show LUT where possible.
• Match time of day, weather and light direction to the scenes they connect with.
• Agree frame rate, shutter and aspect ratio, including any IMAX or PLF expanded-ratio requirements.
• Provide reference stills from main unit for the aerial team.
• Review aerial dailies alongside main unit dailies to catch mismatches early.