In addition to resolution, frame rate should also be compared when defining 4K footage. Most video sites and packages with free 4K videos offer mainly 3840 × 2160 footage for download. In this article we’re using “4K” and “4K UHD” interchangeably when referring to 4K. You may also stumble upon a higher resolution 4096 x 3072 as DCI 4K.
The movie projection industry uses DCI 4K or 4096 × 2160 as its standard.
Consumer media, including online videos, considers 3840 × 2160 or 4K UHD as its dominant 4K standard. Digital videos (digital TV and digital cinematography) use several 4K resolutions. The resolution of 4K footage refers to the number of pixels used to display an image on a digital monitor or a TV screen.
What is 4K in the online video and TV world? Is it the same as Ultra High Definition (UHD)? How different is it from High Definition (HD) footage? Here are 4 basic steps to define 4K footage: 4K Resolution
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