Film Production Glossary

B

Birger Mount

A Birger Mount is an intelligent mount that is able to influence the motors for focus and exposure in Canon lenses. A Birger Mount and a are needed in order to work with a digital Canon EF lens, which produces extraordinarily sharp and detailed pictures. In combination with a digital these lenses produce a better picture quality than "Zeiss high speeds" or "Zeiss super speeds". Unfortunately, it is not yet possible to determine focal ranges using a measuring tape when working with Canon lenses.

Blue Screen

Shooting a person or object in front of a blue screen makes it possible to remove the blue background and replace it with the desired real-life, virtual or painted backdrop in . The blue screen method is generally used when it is too expensive to shoot in the actual or the location does not exist. Besides blue there are also red, yellow and, most importantly, . It is possible to key out (remove) any color; however, blue or green screens are mostly used because these colors occur in human skin only to a small extent; if a blue object is shot in front of a blue screen it will appear transparent or disappear completely after keying. It is advisable to choose a green over a blue screen when working with a Red One, as Red Ones are more prone to noise on the blue than on the green channel.

Briefing

Project description by the client for the production company. In a briefing, the client provides information about their company, what they want to communicate, target audience, budget and schedule. The more detailed and accurate this information is, the stronger the initial concept will be. The briefing is a key stage in any commercial production as it conveys the client's marketing goal.

Briefing: Some of the points that are discussed in a briefing are: