Warm skin tones under cold LEDs: one news desk, one fix

Marcus runs a small regional news studio, and when he first rang us his complaint was simple: the presenters looked different from one bulletin to the next. The morning programme was warm and flattering, the lunchtime one slightly green, and the evening one somewhere in between. Nobody on the crew could say why, and each person had a theory involving the camera, the make-up or the monitor.

I visited on a grey mid-autumn morning, before the first live slot. The room itself was sensible: a modest news desk, a curved backdrop and a lighting grid that had grown over several years. What it lacked was a record of itself. Fixtures had been added one at a time, replaced when they failed, and aimed by whoever was on shift. My first job was to listen, then to look, and only then to touch anything.

Up on the grid we counted fixtures from three different generations. Some LED panels leaned slightly toward green, others toward magenta, and a pair of older units were still running with a different colour temperature from everything around them. Individually each looked acceptable. Together, and mixed on a presenter's face, they produced the drift Marcus described.

There was also a daylight issue. A side window threw a strip of natural light across one end of the desk, so the first presenter in the chair was lit differently from the second, and the whole picture shifted as clouds passed. None of this was dramatic. It was the sort of slow accumulation that every working studio collects, and it explained the complaint completely.

• Mixed LED batches with different colour tint
• Two fixtures at a different colour temperature
• Uncontrolled daylight from one side window
• No written plot showing what was aimed where

Before anyone climbed a ladder, I drew the plot on paper: key, fill and back light for each of the two presenter positions, plus separate wash for the backdrop. For every position I noted the fixture type, throw distance, intended angle and dimmer level. Marcus read it with his producer and moved two items he disagreed with, which is exactly what a plot is for.

Then we chose the fixtures. Rather than replace everything, we kept the panels that were consistent with one another, retired the oddities and specified a matched set for the key positions. Matching mattered more than price or brightness. A smaller number of identical fixtures, set to the same temperature and the same tint, gives an editor and a vision engineer far fewer surprises than a larger mixed collection.

The rigging work took a single evening after the final bulletin. We re-hung the key lights at consistent heights, secured cables with proper strain relief and labelled each fixture at the grid so that a new crew member could read the plot from the floor. Safety bonds were checked and replaced where they had been improvised.

For the window, we fitted a simple removable diffusion and flag arrangement that Marcus's crew can put up in a couple of minutes. It does not pretend the window is not there. It brings the daylight down to a level where the studio lighting controls the picture, so the first and second presenter are lit alike whatever the weather is doing outside.

With the lights in place we sat with the camera operator and the vision engineer and set white balance against a neutral card at each presenter position. We recorded the settings, then checked skin tones on a waveform and vectorscope rather than trusting the monitor alone. Marcus asked two of his own presenters to sit in and told us honestly when something looked too flat.

Small adjustments followed: a touch less fill on one side, a slightly lower back light so that hair did not glow. By the time we finished, the three bulletins matched closely enough that the crew stopped talking about colour and went back to talking about the stories, which is the best sign a lighting job can give.

• White balance set per position and written down
• Skin tones checked on scopes, not only on a monitor
• Presenters consulted before final levels were saved

The most useful thing left behind was not a fixture. It was a one-page plot, pinned beside the lighting desk, with saved dimmer states for each programme and a short note on what to check at the start of a shift. When a lamp fails, the crew replaces it with the matching spare rather than whatever is in the cupboard.

Marcus tells me the arguments about who looks sallow have stopped. I would add a caution of my own: lighting drifts again if nobody owns it. A quick check once a season, with the plot in hand and a neutral card on the desk, keeps a good rig behaving the way it did on the evening it was finished.