4K/Ultra HD camcorders and DSLRs: Quite a bit of hype has surrounded 4K (or Ultra HD) TV recently, and
you'll see a few early-generation 4K HDTVs released in the upcoming year. But Ultra HD is at least a few years
away from being mainstream-ready, in large part because not a lot of 4K content is yet available for viewing.
And no wonder: At 3840 by 2160 lines, 4K footage has four times the resolution of 1080p videor