The Chroma key technology, otherwise known as the green screen, has several benefits for videographers. Using a green screen allows filmmakers to insert any background of their choice by filming the subject against a green background and then replacing it with a digitally generated one in post-production. The green screen studio allows cinematographers to operate in a controlled environment to produce virtually any setting for the subject. The technique saves a lot of time compared to shooting on location and is usually much more cost-effective. However, videographers must know how to shoot using a green screen since it is easy to get it wrong. Some pro tips on getting green screen filming right:
Make the Lighting Even
For green screen shooting, you need to make sure that the lighting is even; otherwise, it will create unwanted shadows and prevent the color from being uniform. You need to use dedicated lighting for the background with lights placed on both sides and at angles to eliminate shadows. You must use separate lights for the subject. According to Peer space, the lighting on the entire green screen must be soft. If necessary, you can use lighting diffusers in front of the lights to ensure even dispersion across the background.
Choose the Right Green Screen Material
Normally, you will have two options of green screen background materials; cloth and paper. While cloth is more durable, you will need to iron out all the wrinkles before using it. You must also make sure that it has a smooth scoop shape if you plan to take full-length shots. Good quality green screens made of cloth can be expensive. You may be tempted to use a paper screen because they are cheaper. However, paper tends to become dirty fast and tears easily, so you need to handle it and maintain it carefully.
Position the Subject at a Distance from the Green Screen
Placing the subject far away from the screen has multiple benefits. The green background does not spill accidentally onto the subject, the subject is easier to light, and the light does not cast shadows or create hot spots on the screen. While putting as much distance as possible between the subject and the screen is advisable, you must have at least five to six feet distance between the two to make the shoot and post-production easier.
Match the Subject Lighting To the Scene
It is also important that the subject lighting matches the intended scene when using a green screen to recreate a particular location. If the subject lighting does not match the background, it will become obvious that the background is artificial. In addition, ensuring a shallow depth of field can make your green screen look even.
Using a green screen for shooting films or videos can make the job easy and economical for the production crew. However, it is important to learn the techniques of using a green screen if you want to achieve a natural look. Getting the technique wrong will make it apparent that the filming has been done in the studio against a green screen and a background placed artificially in the post-production stage and savefromnet.