Another article from Makeuseof: Lytro Light Field Camera: Snap Happy Or Photo Gimmick?
Described by an employee as “the first major change in photography since photography was invented”,
the Lytro light-field camera is certainly a revolutionary device. The
camera shakes things up by replacing much of the heavy and sensitive
technology in your typical camera with software.
Whether or not it’s worth your hard earned money at this stage is
still unclear, however. Even the earliest of early adopters might want
to think twice about the Lytro, despite the amazing technology and
interactive results that are possible.
A typical camera measures the intensity and colour of light of a scene,
be it captured on a roll of film or the sharpest digital sensor. Once
you’ve taken your snap, Photoshop aside, there’s very little you can do to change the point of focus on a static image. That’s where Lytro differs. By capturing the direction light is moving and then reconstructing this
along with color and intensity, Lytro allows you to change your point of
focus once the image has been captured. This is called light field
technology, and it’s bound to revolutionise the way we take photos.