Lytro today unveiled its second so-called light field camera, a system that lets you refocus a picture after it has been taken. The Illum is an upgrade from its predecessor, and you can pre-order it now for $1,499 (retail $1,599 after July 15). You may never have heard of light field cameras, since the technology has mostly been limited to labs and specialized studios until Lytro brought it to consumers in 2011.
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