Some of these folks are here to get pictures with one of the most highly-sought after cameras to be released this year: a new Lytro camera, which is the first portable light-field camera. It measures light rays, no pixels required, with a light field sensor that captures 11 million light rays. Most of the camera is made up of the lens. There’s no delay taking photos because it doesn’t focus first—it records all the light data in a photo. And here’s why people are excited about it—you can go back in and focus different parts of the picture, after the shot has been taken.