2K- An image with 2048 pixels horizontal resolution. In the Digital Cinema Initiatives (DCI) standard, an image container of 2048 x 1080. This is closely related to 1080p high definition (1920 x 1080). The Sony F55, F5 and FS700 cameras can output a 2K image without windowing, which means no loss in angle of view versus the 4K image.