In the last few years, a handful of cameras have come out with the ability to change your focus after a shot was taken. Most of the time, it doesn't work as well as you wished it would due to the depth of field not being exactly how you wanted it. However, a company by the name Light is coming out with an incredible camera that lets you change your focus AND Depth of Field after a shot was taken. It's called the L16 and it looks fantastic.
The Light L16 is a body with 16 individual cameras built in. 10 of these cameras shoot together at multiple fixed focal lengths. These images are then combined into a single image allowing you to pick and choose your depth of field and focus after a shot was taken. The L16 also features a built in editor and Wi-Fi so you can adjust your photos and share them right from the camera's screen. In case that wasn't enough, the L16 will also shoot 4K video.