4K resolution - Wikipedia
4K resolution refers to a horizontal display resolution of approximately 4,000 pixels. Digital television and digital cinematography commonly use several different 4K resolutions.
4 K: стоковое видео в 4K и HD | Shutterstock
Contemporary Painter Creating Abstract Modern Art. 4k00:30Abstract motion background shining gold 4k00:13confident business woman walking in airport smiling independent female executive...
4K Videos on Vimeo
The best high quality 4k videos on Vimeo, curated by the Vimeo staff. Enjoy these ultra high definition (UHD) videos for free or as an OnDemand purchase in 24p