Imagine never taking an out-of-focus picture again in your life.

I heard about this incredible technology at TEDx Berkeley a couple of years ago, but didn’t think it would come to market this quickly.

In a nutshell, you can focus your photos after you’ve taken the shot. This miraculous feat is accomplished by using a light field sensor that captures the color, intensity and vector direction of the rays of light. (Directional information is lost with traditional camera sensors, which simply add up all the light rays and record them as a single amount of light.) Lytro allows both the picture taker and the viewer to focus pictures after they’re snapped, shift their perspective of the scene, and even switch seamlessly between 2D and 3D views.

Check out the gallery for an on-screen demo of how it works.