Here’s an excellent article about the Lytro, a new type of digital camera that allows the user to have complete control over focus at the moment the picture is taken—and change the point of focus at any time afterwards.
One of the many revolutionary things about the camera is its form factor; it’s a rectangle with a lens at one end and a viewfinder at the other. From the article:
How do you cram a super-long lens onto a camera that’s still small enough to pocket? You don’t. “There’s over 300 different digital cameras on the market every year,” explains Ng. “Frankly, there’s a lot of anachronistic forms that carry over from when a camera body needed to house a roll of film.”
What great thinking.