2K resolution is a generic term for display devices or content having horizontal resolution of approximately 2,000 pixels. In the movie projection industry, Digital Cinema Initiatives is the dominant standard for 2K output and defines 2K resolution as 2048 × 1080.
In television and consumer media, 1920 × 1080 is the most common 2K resolution, but this is normally referred to as 1080p.
|Format||Resolution||Display aspect ratio||Pixels|
|DCI 2K (native resolution)||2048 × 1080||1.90:1 (256:135, ~17:9)||2,211,840|
|DCI 2K (flat cropped)||1998 × 1080||1.85:1||2,157,840|
|DCI 2K (CinemaScope cropped)||2048 × 858||2.39:1||1,755,136|
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.
- James, Jack (2006). Digital Intermediates for Film and Video. Focal Press. p. 125. ISBN 978-0-240-80702-7. Retrieved April 19, 2014.
- "Digital Cinema System Specification" (PDF). Digital Cinema Initiatives. 10 October 2012.
- Swinson, Peter R (November 2005). "DCI and OTHER Film Formats" (PDF). Archived from the original (PDF) on 2016-03-03. Retrieved 2015-04-02.
- Lenovo. "What is 2K Resolution?".
- 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.
- Siglin, Tim (March 8, 2013). "What is 2K and 4K Video?". www.streamingmedia.com. Retrieved March 29, 2015.
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