Lytro, Inc. ( unveiled the first Lytro consumer light field camera, introducing a new way to take and experience pictures. Conventional cameras record light rays, but this camera uses a new concept of a light field. A light field completely defines how a scene appears. It is the amount of light traveling in every direction through every point in space.

This dramatically changes photography for the first time since the 1800s. Unlike conventional cameras, the Lytro light field camera captures all the rays of light in a scene, providing new capabilities never before possible, such as the ability to focus a picture after it’s taken.

This evolved from a Stanford University experiment in the 1990s that had 100 camera in a room. The Lytro camera fits in your pocket. It will be available in 2012 in several models and colors starting at $399

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