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Green Screen Presenter Michelle's office #BehindTheDoor campaign
Most of us have heard the expression, "The camera never lies". That's right, it doesn't but in collusion with postproduction it frequently does.

What is Green Screen?
Most of what we film these days has some level of visual adjustment, known as effects, which very subtly influences the tone or mood of the shot. Often you won't even notice it's been done. However, the biggest visual liar in our industry is Green Screen. What you see simply isn't true.

Green Screen technology is the technique used to create the illusion of an imaginary or distorted location. Being able to 'key out' (i.e. isolate) a green background to become transparent, enables the producer to superimpose foreground imagery on top of a different background, whether that's a photographic image, graphic, animation or perhaps another video.

So why would you want to do that?
Well, imagine you want your viewers to picture you in a faraway country. Going there might prove rather time-consuming and expensive. Creative ideas may work better in locations that are relatively difficult or impractical to set up in real life, for example, on the moon. What if you want to change the scale of the presenter to be bigger or smaller than he or she really is? Altering foreground scale compared to background scale during the shot is often used to intensify a situation. You may simply want a more interesting background than being sat in a boring office with a plain wall. Green Screen allows them all.

How's it done?
Any colour can be 'keyed out' but producers tend to choose green because it's the furthest away from natural skin tones. A studio set up is usually the best choice as it provides the correct environment for carefully configured lighting and microphones. For technical reasons, which we won't go into here, more spacious studios offer far better quality control. With the use of full height backdrops, presenters can also be stood up so they can be seen from head to foot, or whatever looks best in frame. Quite recently we created an office setting in the middle of a field, giving the presenter full scope to move around and a magical door to theme the storyline around. Neither could have been filmed in a real field, not least because the cows wouldn't have left us alone!

Here's a video demo of a typical production process.

What's the end result?
Of course there are less complex scenes but within reason nothing is impossible, turning the impossible into possible, the unbelievable into believable and changing the boring into interesting.


If your film might appear better from hard-to-access locations or you would like
help to bring visuals to an unusual idea, why not give CorpFilms [UK] a call?
"It's what we're known for. It's what we do well"

CorpFilms [UK] specialises in 'high-end' corporate film production. * Company Promotions * Web and Point of Sale adverts * Training, Employee Inductions and e-Learning * Product 'How to' User Guides & Demonstrations * Live Events and Award Ceremonies * Interactive Interviews
Call or email for an informal chat.

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