There is some new camera tech coming out later this year from lytro. Lytro is using light field technology. Light field captures all the light in the given scene.
What does all the mean?
One of the many things this will help with is focus. You will be able to change the focus of a picture after it is taken so there will be no need to focus before hand. You will also be able to create 3d images and even holograms from these files. here is a link to lytro’s FAQ. This is some amazing technology. I think this will be one of the biggest leaps in photography tech in a long time.