Planning a Lighting Plot for a Live News Desk, Step by Step
A practical walk through the first stage of lighting design for live television: measuring the set, placing key and fill, and checking skin tones on camera before anyone goes to air.
Start with the set, not the lamps
Before choosing a single fixture, walk the set with a tape measure and a notebook. Record the ceiling height, the grid or bar positions, the distance from the desk to the backdrop and the spot where each presenter will sit or stand. These numbers decide everything that follows, because a lamp that looks fine on paper at three metres behaves very differently at five, and a low ceiling limits how steeply you can angle the key light without throwing shadows under the eyes.
Sketch the set from above and mark the camera positions as well. Lighting is designed for the lens, not for the room, so the plot should show where each camera sits, which way it faces and how wide its shot will be. If a camera moves, mark the start and end of its path. A plot drawn this way is a working document that the rigging crew, the camera operators and the gallery can all read without a briefing.
Finally, note what already exists on site: mains outlets, dimmer racks, spare circuits and any fixed fittings you must work around. Discovering a power limit on the morning of a broadcast is avoidable, and it is far cheaper to adjust a drawing than to move a rig.
- Ceiling or grid height and usable rigging points
- Presenter and guest positions, seated and standing
- Camera positions with shot width and any movement
- Available circuits, dimmer channels and total power
Build the key light first
The key light does most of the work, so place it before anything else. For a presenter at a desk, a soft source set roughly forty-five degrees to one side of the camera line and angled down by a similar amount gives shape to the face without harsh shadows. Keep it close enough to be soft, yet far enough that the presenter does not feel the heat or squint into it during a long programme.
Check the light at the presenter's actual seated height, not at standing height. A key that looks correct while you stand beside the desk can sit too high once someone is in the chair, leaving dark eye sockets. Ask a colleague to sit in each position, ideally one with a different complexion from the regular presenter, and look at the monitor rather than trusting your own eyes in the room.
Consider how guests will arrive. An interview set often has two or three seats, and the key for each should match in colour and level, or the shot cuts will look uneven. Aim for the same angle and similar distance for every seat, and adjust the intensity by small steps until the faces on the monitor read as the same exposure.
Add fill and back light with restraint
Fill light softens the shadows the key leaves behind. The common mistake is to add too much, which flattens the face and removes the shape that makes a presenter look natural. Start with the fill turned low, on the opposite side of the camera from the key, and raise it slowly until the shadow side holds detail without disappearing. A ratio of about two to one between key and fill suits most news work, and you can open it up for a more dramatic interview.
Back light separates the presenter from the background by tracing a thin edge of light along the hair and shoulders. Place it high and behind, aimed down at a steep angle, and keep it away from the lens to avoid flare. If the backdrop is dark, a little more back light helps; if it is pale or brightly lit, reduce it, or the edge will look harsh.
Light the background as its own task. A set that is evenly lit behind the desk looks calm and professional, while hot spots draw the eye away from the speaker. Use separate dimmer channels for background, so you can balance it against the faces without touching the key.
- Keep fill low and raise it in small steps
- Place back light high, behind and steeply angled
- Give the background its own dimmer channel
Colour temperature and consistency
Mixing light sources is one of the quietest causes of poor pictures. A set that combines tungsten-style lamps, LED panels and daylight from a window will show colour shifts that the camera cannot fully correct. Choose one colour temperature for the whole set, set the cameras to match it, and cover or block any window that spills in during the programme.
Where LED fixtures are used, check their output on camera rather than relying on the label. Some panels show a slight green or magenta cast that is visible on skin tones. A small adjustment at the fixture is cleaner than a correction later in the gallery. Test each fixture on its own, then together, and record the settings so that anyone rigging the set next time can reproduce them.
Consistency across the day matters as much as accuracy at one moment. If the programme runs for several hours, lamps warm up and drift slightly, and daylight changes through the afternoon. Recheck the monitors at the start, the middle and shortly before going to air, and keep a note of each reading beside the plot.
Rigging, safety and access
A lighting plan is only useful if it can be installed safely. Every fixture needs a rated clamp, a safety bond and a cable route that does not cross a walkway or the path of a moving camera. Check the weight limit of the bar or grid and add up the fixtures you plan to hang before the day, not during it.
Think about access for changes. If a lamp must be refocused during rehearsal, someone needs to reach it without moving the whole set. Where possible, place the fixtures that need frequent adjustment within reach of a safe platform or pole operation, and leave the fixed background lights higher up where they will not be touched.
Label every fixture and every cable end to match the plot. A numbered tag on the lamp and the same number on the drawing lets a crew member follow an instruction such as lowering lamp six by a notch without searching. It sounds small, yet it saves minutes when the schedule is tight and the presenter is already in the chair.
- Rated clamps, safety bonds and weight checks
- Cable routes clear of walkways and camera paths
- Numbered tags that match the drawing
A rehearsal routine that catches problems
Set aside time for a proper lighting rehearsal with real people in their seats, wearing what they will wear on air. Dark suits, white shirts and patterned fabrics all behave differently under the same light, and you want to see the worst case before the broadcast, not during it. Walk each person through the moves they will make, including standing, turning and handing over to a guest.
Watch the picture on a calibrated monitor in the gallery with the camera operator and the vision mixer present. They notice things the lighting crew cannot, such as a reflection on a desk surface that only appears from one angle. Make small changes, one at a time, and look again after each one so you know which adjustment helped.
Finish by writing down the final positions and levels. A one-page record of the plot, dimmer values and camera settings becomes the starting point for the next programme, and it lets the team recover quickly if a fixture fails or is replaced.
A reliable lighting plot comes from measuring the set, building the key light first, adding fill and back light carefully, keeping colour consistent, rigging safely and rehearsing with real people. None of these steps is complicated, but skipping any one of them tends to show on air. Keep the drawing, the settings and the notes together, and the next programme begins from a known, working position.
Daniel Pryce
Studio Systems EngineerDaniel designs and tests equipment integrations, from cabling to intercom, and documents every build clearly.
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