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Great news for home-theater geeks: While the name of the new Sony VPL-VW285ES 4K projector may not exactly roll off the tongue, it casts an excellent high-dynamic-range picture and, at $5,000, it’s not exceedingly expensive relative to similar units. Just two years ago, the cheapest 4K Sony projector cost twice that amount.
For the non-techies among us, 4K offers nearly four times the pixels as a Full HD (1080p) high-definition signal that’s been common to TVs, projectors, videogames and cable providers for a decade. Theaters…