Editing Color rendering index (section)

== Film and video high-CRI LED lighting ==
{{Further|High-CRI LED lighting}}

Problems have been encountered attempting to use LED lighting on film and video sets. The color spectra of LED lighting primary colors does not match the expected color wavelength bandpasses of film emulsions and digital sensors. As a result, color rendition can be completely unpredictable in optical prints, transfers to digital media from film (DIs), and video camera recordings. This phenomenon with respect to motion picture film has been documented in an LED lighting evaluation series of tests produced by the [[Academy of Motion Picture Arts and Sciences]] scientific staff.<ref>
{{cite web
 | url = http://www.oscars.org/science-technology/sci-tech-projects/solid-state-lighting-report
 | title = Solid State Lighting Report
 | date = September 3, 2014
}}</ref>

To that end, various other metrics such as the TLCI (television lighting consistency index) have been developed to replace the human observer with a camera observer.<ref>
{{cite web
 | url = https://tech.ebu.ch/tlci-2012
 | title = EBU Technology & Innovation - Television Lighting Consistency Index 2012
 | date = May 31, 2016
}}</ref> Similar to the CRI, the metric measures quality of a light source as it would appear on camera on a scale from 0 to 100.<ref>{{cite web
 | url = http://www.gtc.org.uk/tlci-results.aspx
 | title = The Guild of Television Cameramen: TLCI Results
 | access-date = August 28, 2014
 | archive-url = https://web.archive.org/web/20140903072219/http://www.gtc.org.uk/tlci-results.aspx
 | archive-date = September 3, 2014
 }}</ref> Some manufacturers say that their products have TLCI values of up to 99.<ref>
{{cite web
 | url = https://www.yujiintl.com/film-lighting.html
 | title = High TLCI LEDs for Film and Photography
 }}</ref>