How to Write a Camera Specification for a Small Television Studio

Start with the programme, not the equipment list

Most poor camera purchases begin with a catalogue. The better route is to write down what the studio will actually make. A weekly discussion programme with three presenters needs a different camera arrangement from a daily news bulletin or a corporate interview set, and the specification should say which of these it is before any model is considered.

Note the number of programme hours a week, how many people are on the floor, and whether the output goes live or is recorded and edited. Live work leaves no room for a fault to be fixed afterwards, which pushes you towards simpler, well-understood kit and a spare of whatever matters most.

Then describe the shots you expect: wide establishing views, two-shots, close-ups on a guest, perhaps a moving shot across the set. Sketch these on a rough plan. This short document is what everyone else in the process, from the supplier to your own director, will refer back to.

I ask clients to write this page first because it settles arguments early. When someone later suggests a fifth camera, the page shows whether a shot exists that needs it.

• Programme type and hours per week
• Live or recorded output
• Number of presenters and guests on the floor
• The shots the director expects to cut between

Count cameras and decide where each one lives

Cameras are positions before they are products. Mark each position on the floor plan and give it a job: a main wide, a presenter close-up, a guest close-up, a cutaway. Check the sightlines, because a camera that sees a lighting stand or another camera in shot is in the wrong place however good it is.

Allow for the lens and the distance to the subject. A small studio often forces short distances, so a wide-angle lens range matters more than long reach. Ask what the widest usable shot is from each position and whether the set walls allow it.

Think about cable routes at the same stage. Every camera needs a path for signal, power and talkback that does not cross the walking routes of the crew. Trip hazards on a live floor are a real safety concern and a common cause of bumped pedestals.

Resist the urge to add positions as insurance. Each extra camera needs an operator or a remote head, a gallery input and space, and they all cost money every day they are used.

• One written job per camera position
• Widest usable shot from each position
• Cable path kept clear of crew walking routes

Operated pedestals or robotic heads

The choice between a human operator and a robotic head is the biggest cost and workflow decision in the specification. Operated cameras give natural framing, can follow an unscripted guest and cope with surprises. They also need trained people on the floor for every transmission.

Robotic heads suit predictable formats: news desks, interview sets and presentations where the shots can be stored and recalled. One person in the gallery can drive several heads, which saves staffing, though they cannot react to a guest who leans out of frame the way a skilled operator can.

Many studios mix the two, using an operated main camera for the shots that need judgement and robotic heads for fixed close-ups. This is often the sensible middle, and it should be described in the specification as a deliberate choice.

Whichever you pick, write down the movement you need. Pan and tilt range, the speed of moves and how smoothly a head can start and stop all differ between products, and a vague request for a robotic camera will get you vague answers.

• Operated: flexible, needs crew on the floor
• Robotic: efficient for fixed formats, limited reaction
• Mixed: operated main camera, robotic close-ups

Camera control units and the gallery link

A studio camera does not work alone. The camera control unit, or its equivalent in a smaller system, lets a vision engineer match exposure, colour and black levels across every camera so that cuts between them look consistent. In a modest studio this may be a single operator at a desk rather than a rack of equipment.

Ask how the cameras connect to the gallery. A single cable carrying video, power, intercom and return feeds keeps the floor tidy, but it limits cable length and ties you to compatible equipment. Separate cables are more flexible and bulkier. The specification should state the longest run from camera to gallery.

Decide which signal standards the whole chain will use before buying anything. Mixing formats forces converters into the path, and every converter is another box that can fail or add delay. Match the camera outputs to the vision mixer and the monitoring.

Also record what the engineer needs at the desk: waveform and vectorscope monitoring, a reference monitor of good quality and a clear view of the studio floor.

• Longest cable run from camera to gallery
• One signal standard across the whole chain
• Waveform, vectorscope and a reference monitor

Test before you commit

A written specification only gets you so far. Before ordering, arrange to see the shortlisted cameras working in conditions close to your own. A showroom with perfect light tells you little about how a camera behaves under your set lighting, with your skin tones and your reds and blues.

Bring a set of test requirements: a presenter in your usual clothes, a bright window or screen in the background if your set has one, and the lowest light level you expect to use. Look at noise, colour and how quickly the picture settles after an exposure change.

Put your operator or director in front of the equipment. The handle position, the weight of the head and the feel of the focus control matter to the person using them for hours, and they will notice things you will not.

Ask the supplier for the setup steps and a handover plan in writing. Who connects, aligns and tests each camera, and what happens if one needs replacing in the first year? These answers belong in the specification as well.

• Test under your own set lighting
• Include the person who will use the camera daily
• Get setup, handover and replacement terms in writing

Keep the document alive after the purchase

Once the cameras are installed, keep the specification and update it. Record the final positions, lens settings, cable labels and the exposure and colour settings agreed at commissioning. When a camera is serviced or swapped, the next engineer can then restore the studio to a known good state in minutes.

Add a short routine for the start of each production day: power up, check each head returns to its stored positions, confirm the intercom and return feeds, and look at every camera on a reference monitor. Ten minutes of checking saves a fault appearing during transmission.

Keep a note of what did not work. If a lens range proved too tight or a robotic head was too slow for a guest, write it down so the next upgrade starts from experience instead of memory.

A good specification is a working tool, not a purchasing formality, and it is what lets a small team make sensible decisions when the studio grows.

A camera specification does not need to be long. It needs to say what the studio makes, where each camera sits and what job it does, how it is operated, how it connects to the gallery and how it will be tested and handed over. Written in that order, it makes quotations comparable and conversations with suppliers shorter. If you would like a second pair of eyes on a draft, the contact page is the place to start.