The number one thing to pay attention to when setting up a green screen shot is lighting. Without proper lighting your shot is destined to fail. The most common issue you will face with improper lighting, is the tell-tale halo effect around your talent after you key the shot. Here's how you can avoid it.
Remember that light doesn't just fall on your subject and do nothing. Light bounces all over the place. It reflects off of the floor, your talents face and clothes and, most importantly, your green screen!
When bright lights bounce off of your green screen, they reflect the color of the screen back onto your talent. This can cast a green hue onto, mainly, their hair and clothing, and this can be very hard to key out of your shot. To properly avoid this, use lights that are bright enough to illuminate your screen enough to provide a vivid color, but not so bright as to cause excessive reflection. Positioning the lights high and shining down onto the screen will tend to aim any colored reflections toward the ground, away from the critical keying areas such as face and hair.
If you have enough lights available, light the green screen and the talent separately. Position the lights and adjust the intensity so that the lighting is smooth on the talent and does not cast a shadow onto the screen. Lighting the screen separately helps reduce possible shadows from the talent.
Use a backlight and a hair light on your talent. This will provide separation of the model from the background, and make for a much cleaner key.
If you want to get the most out of your video productions, following these simple guidelines will help your videos look their very best.
Martin Zaleski, of Creatives Anonymous, is a veteran videographer that has virtually burned his eyeballs out of their sockets from staring at computer screens for so long. His current project involves a top secret mission in the Persian Gulf for DavidMaynard.Net.
No comments:
Post a Comment