Startup company Lytro has announced what it calls the first light field camera for everyone. This will let users take photographs, then select the focal point later. The camera uses light field sensors to capture the color, intensity and vector direction of all the light rays in a scene, then uses algorithms to process them and let users change the focus as desired after taking the shot. Clicking on the blurred parts of photos in Lytro's picture gallery brings them into sharp focus through what appears to be streaming technology.