2K resolution

2K resolution is a generic term for display devices or content having horizontal resolution of approximately 2,000 pixels.[1] In the movie projection industry, Digital Cinema Initiatives is the dominant standard for 2K output and defines 2K resolution as 2048 × 1080.[2][3]

List of common display resolutions

In television and consumer media, 1920 × 1080 is the most common 2K resolution, but this is normally referred to as 1080p.

Resolutions
FormatResolutionDisplay aspect ratioPixels
DCI 2K (native resolution)2048 × 10801.90:1 (256:135, ~17:9)2,211,840
DCI 2K (flat cropped)1998 × 10801.85:12,157,840
DCI 2K (CinemaScope cropped)2048 × 8582.39:11,755,136

Comparison to 1080p

Occasionally, 1080p (Full HD or FHD) has been included into the 2K resolution definition. Although 1920x1080 could be considered as having a horizontal resolution of approximately 2,000 pixels, most media, including web content and books on video production, cinema references and definitions, define 1080p and 2K resolutions as separate definitions and not the same.

Although 1080p has the same vertical resolution as DCI 2K resolutions (1080 pixels), it has a 7% smaller horizontal resolution below the range of 2K resolution formats.[4]

According to official reference material, DCI and industry standards do not officially recognize 1080p as a 2K resolution in literature concerning 2K and 4K resolution.[2][3][5][6]

See also

References
  1. James, Jack (2006). Digital Intermediates for Film and Video. Focal Press. p. 125. ISBN 978-0-240-80702-7. Retrieved April 19, 2014.
  2. "Digital Cinema System Specification" (PDF). Digital Cinema Initiatives. 10 October 2012.
  3. Swinson, Peter R (November 2005). "DCI and OTHER Film Formats" (PDF). Archived from the original (PDF) on 2016-03-03. Retrieved 2015-04-02.
  4. Lenovo. "What is 2K Resolution?".
  5. Ascher, Steven (2007). The Filmmaker's Handbook: A Comprehensive Guide for the Digital Age. Penguin. pp. 189, 714. ISBN 978-045-2-286-788. Retrieved March 29, 2015.
  6. Siglin, Tim (March 8, 2013). "What is 2K and 4K Video?". www.streamingmedia.com. Retrieved March 29, 2015.
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