YouTube has announced that its player now supports 4k, a standard resolution for films that measures 4096×3072 pixels (requiring special equipment to view).

As YouTube Engineer Ramesh Sarukkai explained in the announcement on YouTube’s official blog, “4K is nearly four times the size of 1080p,” and it dwarfs even Imax, which projects films in the slightly smaller 2k format, with its 2048?1080-pixel resolution.