10K Timelapse of Rio de Janeiro
10328 x 7760 pixels.
In case you want to test your 10K screen, you can use this video. This timelapse video was shot in Rio De Janeiro, Brazil. Each shot is comprised of hundreds images, each at a whopping 80 megapixels. Each individual raw frame measures 10328×7760 pixels. The camera used was a PhaseOne IQ180.