LAS VEGAS -- As the NAB (National Association of Broadcasters) Show officially starts Monday in Las Vegas, the major camera manufacturers have already kicked the show into full gear and this NAB is all about 4K (4096 x 3072). 4K is the next high definition standard for displaying HD content with a display resolution that is four times higher resolution than 1080p (1920 x 1080). At their respective press conferences today, Canon demoed its recently announced Cinema EOS C500 and 1D C cameras and showed two short films shot on the new cameras while Sony showed off its NEX-FS700 for the first time which will be a 1080p camera that will be 4K ready via a future firmware upgrade and external recorder. Panasonic showed off a 4K Varicam prototype camera as well as announced its AVC Ultra codec for supporting 4K workflows in its camera ecosystem. Meanwhile, RED, the pioneer in 4K cameras, kept a couple steps ahead of the competition as RED's CEO Jim Jannard posted an announcement late Sunday night on the its RedUser.Net forums giving specs, availability and pricing info on its new 6K (6000 x 4000) Dragon sensor which will be a $6,000 upgrade for its EPIC camera and an as yet undisclosed upgrade price for its Scarlet camera.