A green screen studio in Abu Dhabi lets you put a presenter, a product or a whole conversation in front of any background, added later in the edit. It works when the screen is lit evenly, the subject stands well clear of it, and the shoot is planned around the background before anyone arrives. Get those right and the key takes minutes; get them wrong and the edit takes days.

This guide covers when green screen is the right choice, the details that decide a clean key, and what to ask a studio before you book. For choosing a studio in general, see the ten checks for choosing a photo studio in Abu Dhabi.

What a green screen is, and why it is green

Green screen, or chroma key, replaces one colour in the picture with another image. The editing software picks out the green, makes it transparent, and the new background shows through. Green is used because it is far from every skin tone, and because digital camera sensors record more green detail than red or blue, so it pulls away from the subject cleanly. Blue screen does the same job, and is still used when someone has to wear green.

When green screen is the right choice

Green screen or a real set?
Choose green screen whenChoose a real set when
The background is a graphic, a chart or a screen recordingThe background is a real place the viewer should trust
The location is impossible, expensive or far awayYou can shoot there, or build it, for the same cost
A series needs the same set for every episodeEach video needs its own look
You will choose or change the background after the shootThe background is fixed and known
Presenters, explainers, composites and product overlaysInterviews and conversations, where a real room feels natural
Two director's chairs facing a cinema camera on a tripod under magenta studio lighting
For conversations, a real set: the interview set beside the green screen at Evo's studio.

Interviews and conversations usually look better on a real set, with depth and light behind the people. That is why Evo's studio has an interview set beside its green screen: two director's chairs facing a cinema camera under coloured light. Green screen earns its place for presenters, explainers and composites, and for anything where the background is information rather than a room.

What makes a clean key

Every keying problem has a cause on set, and most come down to five things.

Even light on the screen

The screen should be one flat, even green from edge to edge, with no bright hot spots and no dark corners. Light it on its own, from both sides, before you light the subject. Creases and seams in fabric make shadows, so a painted wall or a tight, smooth cloth keys better than a loose one.

Distance between the subject and the screen

Green light bouncing off the screen lands on the subject's hair, shoulders and edges. That green spill is what makes outlines look ragged or tinted. Keep the subject well forward of the screen, a few metres where the room allows, and the spill falls away and the shadow drops behind them, out of the frame.

Separate light on the subject

Light the person or the product for the background they will be placed in, not for the green. A light from behind, on the hair and shoulders, draws a clean edge against the screen and cancels some of the spill. If the background is a sunset, the key light should come from the sunset's side.

Shallow-focus view of studio lighting stands and director's chairs
Light the subject for the background it will join, not for the screen. Lighting at Evo's studio, Abu Dhabi.

The floor, if the feet are in shot

A full-length shot needs green on the floor as well as the wall, with the join between them lit so it disappears. If the feet are not in shot, frame from the waist or the knees up and the floor stops mattering. Evo's green screen is a full green floor and wall, lit evenly from both sides, so the key is clean and any background can go behind it.

A sharp, clean picture

Motion blur and heavy compression both soften edges, and soft edges key badly. Use a faster shutter speed if the subject moves a lot, record at the highest quality the camera offers, and keep the focus on the subject. Fine detail such as flyaway hair is the hardest thing to key, so tidy it before the take.

How to plan the background before the shoot

The most expensive green screen mistake is shooting first and choosing the background afterwards. The person has to look as if they belong in the picture behind them, and that is decided on set.

  1. Choose or design the background first, at least roughly, and bring it to the shoot on a laptop.
  2. Match the camera height and angle to the background's. A background shot from eye level needs a subject shot from eye level.
  3. Match the light's direction and colour: warm or cool, soft or hard, from the left or the right.
  4. Match the focus. A soft background behind a sharp subject looks natural; a sharp background behind a soft subject does not.
  5. Mark the floor where the subject stands, so every take sits in the same place in the frame.
  6. Leave room in the frame for graphics, captions or a product that will be added later.
  • A camera on a tripod framing a bowl of pink flowers on a draped plinth, monitor showing the shot
    Monitor
  • Interview set with director's chairs and a camera under magenta studio lighting
    Camera
Check the frame on a monitor, not the camera's own screen, and set the camera height to match the background before the first take. Evo studio, Abu Dhabi.

What to wear on a green screen

  • No green, including green jewellery, green logos and anything with green in a print. It disappears with the screen.
  • Nothing shiny or reflective: sequins, metallic fabrics and glossy jewellery pick up green and key badly.
  • No very fine patterns, such as narrow stripes and small checks, which shimmer on video.
  • Solid, mid-tone colours key best. White and very pale clothes, including a white kandura, reflect green spill, so tell the studio in advance and it can be lit for.
  • Tidy hair, with flyaways smoothed down. Loose strands are the hardest thing to key.
  • A second outfit, in case the first turns out to have green in it.

What a green screen booking involves

A green screen day is two jobs: the shoot and the composite. Ask a studio which of them it does. Some rent the screen and the room, and you light, shoot and key it yourself or with your editor. Others light, shoot, key and edit, which takes longer to quote but leaves you with finished video. Compare the total for the finished minutes you need, not the hourly rate for the room; photo studio rental in Abu Dhabi explains what a rate usually covers.

Green screen problems and how to avoid them

Common green screen problems, their cause and the fix on set
ProblemUsual causeFix on set
Green edges around hair and shouldersSpill from a screen too close behindMove the subject forward; add a back light
Patches of the screen will not keyUneven light, shadows or creasesLight the screen on its own and smooth the fabric
Parts of the subject vanishGreen or reflective clothingChange the outfit, or the screen colour
Ragged edges on movementMotion blur or heavy compressionA faster shutter and the highest-quality recording
The subject looks pasted onLight, angle or focus that does not match the backgroundPlan the background first and match it on set

What your editor needs from the shoot

Whoever keys the footage will thank you for a few minutes spent on these before the set comes down:

  • A clean plate: a few seconds of the empty, lit screen in the same frame as each shot, which helps the software separate the subject from the green.
  • The background plates, at the same size and frame rate as the footage, or the designs they will be made from.
  • Notes on the set-up: the lens, the camera height and the direction of the key light, for anyone building the background later.
  • The best-quality files the camera recorded, not a compressed copy for review.
  • A clear name for every take, with the good ones marked, so nobody keys the wrong one.

Questions to ask a green screen studio

  • Does the screen cover the floor as well as the wall?
  • How is the screen lit, and is it lit separately from the subject?
  • How far forward of the screen can the subject stand?
  • Who keys and composites the footage, and is it in the quote?
  • Can we see something keyed from this screen?
  • What do we leave with: the raw footage, the keyed footage or the finished video?

Green screen at Evo's studio

Evo's studio in Al Nahyan, Abu Dhabi has a green screen standing alongside a white cyclorama, an interview set and a coloured-light set, so a presenter can move from the green screen to the interview chairs in one booking. Hire the room for your own crew, or book our team to shoot it and our editors to key it.

Preparing the people on camera matters as much as the screen. How to prepare for a studio photoshoot covers what to bring and wear for any studio day, and the Evo Media Pro studio guide shows every set.