5.7 What are the industry standards for image brightness and screen reflectivity?
Description
This article is from the rec.arts.movies.tech FAQ, by Scott E. Norwood snorwood@nyx.nyx.net with numerous contributions by others.
5.7 What are the industry standards for image brightness and screen reflectivity?
According to the Society of Motion Picture and Television Engineers
(SMPTE), the generally accepted standard-setting organization for the
industry, films are to be projected at a brightness level of 16
footlamberts (+/- 2 footlamberts). There is no standard for screen
gain, and it varies substantially from theater to theater (from 1x to
3x is common). Screen gain deteriorates over time, and thus requires
that screens be replaced periodically.
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