From Rigging Plan to Even Light: How a Studio Grid Gets Built

I am the acoustics engineer here, so I am usually in the room early with a measuring tape and a laser distance meter, and the lighting work begins in the same place mine does: with the building itself. Before Priya draws a single fixture, we need to know the ceiling height, what the structure above can carry, where the sprinklers and ventilation ducts run, and whether the floor is level enough for pedestal cameras.

Many regional studios are converted rooms rather than purpose-built ones. A low ceiling changes everything: fixtures sit closer to presenters, heat becomes a comfort issue, and the angle of key light gets steep enough to cast shadows under the eyes. We note these limits on a plan so nobody promises a lighting look the room cannot physically deliver.

The survey usually takes half a day. We photograph every corner, mark load points, and ask who uses the room besides the news team, because a space shared with other productions needs a grid that can be adjusted without ladders and a full afternoon.

• Ceiling height and clear working height below the grid
• Load rating of the structure above
• Positions of ducts, sprinklers and existing cabling
• Floor level and surface for pedestal cameras

Once the plan is agreed, the rigging goes up before any fixture arrives. A grid is a set of steel bars hung from the structure, and every connection has a specific job: clamps, couplers, safety bonds and fixing points are chosen for the weight they will hold, with a margin well beyond the expected load. Nothing here is improvised on the day.

Each fixture also gets a secondary safety wire, so that if a clamp ever loosened, the lamp would stay attached to the bar rather than fall. It is a slow, repetitive step, and exactly the kind that gets skipped by people in a hurry. We do not skip it, and we record it on the handover sheet.

Cable routing is planned at the same time. Power and control lines run along the bars in tidy, labelled bundles, kept apart where interference could be a problem. A crew member who needs to swap a fixture two years from now should be able to follow a label rather than guess.

LED fixtures have largely replaced older tungsten lamps in the studios we work with, mainly because they run cooler, draw less power and hold their colour steadily. But the choice between them is not automatic. A news desk wants a soft, even key light with gentle fill, while an interview corner may want something warmer and more directional.

Priya looks at skin tones first. Fixtures with a good colour rendering figure keep faces looking natural under the cameras, and fixtures with adjustable colour temperature let the studio match daylight from a window or a warmer evening mood. Beam angle matters as much as brightness, since a wide flood and a tight spot do very different work.

We also think about noise. Some fixtures carry small cooling fans, and a fan audible on a sensitive microphone is a problem I have to solve afterwards. Where a quiet studio matters, we specify fanless or low-noise units from the start, which is far easier than treating the sound later.

• Colour rendering that keeps skin tones natural
• Adjustable colour temperature where daylight is present
• Beam angles matched to the distance from the set
• Fan noise checked against the microphone plan

Behind the lights sits the control system, and most of the reliability of a lighting setup lives there. Each fixture is given an address, patched to a channel on the console, and grouped so that one fader can bring up the whole news set while another handles the background wall. Getting that organisation right means a technician can recall a look in seconds.

We build the patch on paper before we touch the console, then check it fixture by fixture on site. A mislabelled address, with the wrong lamp responding to a fader, is the sort of error that costs ten minutes during a rehearsal and looks poor in front of guests. A tidy patch sheet taped near the desk saves that time every week.

Presets are stored for each programme format: the morning bulletin, the two-person interview, the wider live show. Operators do not need to build light from scratch each day. They recall a known look, adjust a little, and move on to the thing they are actually there to do.

Light is only right once the cameras agree with it. After the fixtures are focused, we sit in the gallery with the camera outputs on monitors and walk through the set, watching how each presenter position reads. Priya adjusts height and angle, and we look for hot spots on foreheads, shadows from the nose and uneven walls behind the desk.

White balance is set against the studio light, and exposure is matched between cameras so that cutting from one to another does not make the picture jump. This is slow, patient work, usually done with a stand-in sitting in the presenter chair, because real talent is rarely available for an hour of adjustments.

We finish by moving through the light levels a presenter will actually use during a show, making sure the picture holds across them. Consistent light is the quiet goal of the whole exercise: a viewer should never notice the lighting, only that the people on screen look clear and comfortable.

• Stand-in sitting at each presenter position
• Exposure matched across every camera
• Checks at the lowest and highest levels used on air

The install is not finished when the last fixture is focused. We hand over a labelled patch sheet, a plan showing where each fixture hangs, the stored presets and a short written note on how to change a lamp or move a light safely. Whoever works the studio next season should find these without needing us on the phone.

We also show the in-house crew how the grid behaves. Moving a fixture along a bar, relocking a clamp and reattaching the safety wire takes ten minutes to demonstrate and avoids a great many small accidents. Hannah arranges a follow-up visit once the studio has been in regular use, when real habits start to show.

In mid autumn, with darker mornings and more evening broadcasts, studios often discover that their windows no longer help. That is a good moment to review the presets and see whether the lighting still suits the hours the room is actually used.