Green Screen

[Carl Fischer]

Doing a shoot on greenscreen. Were shooting a subject on green screen with the idea of being able to place that subject in the world as a small character in a apartment. The scenes this character will be in will all be daylight in the apartment world (which will be shot as plates after). Because it will be daylight the screen and the subject should be lit with daylight bulbs correct?

 

I assume so since were placing the subject in a daylight world.

[timHealy]

no. consider the green screen as a separate element. if you can light it with super green bulbs. if you used a blue screen you would use super blue bulbs. and light your subject in the manner asked for in your script. just try and keep you subject far enough away from the screen so that there is no green spill on your subject. some might try and use edge lights to overpower any green spill.

 

best

 

tim

[Nathan Blair]

Lighting with daylight bulbs is fine, and yes you MUST match your subject's lighting to your background plate lighting. You can use green bulbs for you the greenscreen if the screen is completely separate from your subject, but if it's a full body cyc then you'll need to mix your lighting a bit. I've had success with even doing greenscreen outdoors, lit by actual sunlight, when compositing a subject into an outdoor environment.

 

Good luck!

[Jad Beyrouthy]

Try to light your subject dependently as much as possible. If your key light on your subject is mainly daylight, try to light your chroma with Tungsten fixtures, it will help the compositor a lot when in post. (if green or blue bulbs are not available of course)

 

The most important is to keep your subject away from the screen as much as possible to avoid the spill and try to have a two stops difference between the subject and the chroma screen (preferably two stops over depending on the exposure on your subject and your camera's latitude)

 

Good luck,

Jad Beyrouthy

Cinematographer

Beirut, Lebanon