This is still a prototype but Stanford University has a working camera that is able to fix all focus issues in post-production. Some of the results are just too hard to believe. And according to their tech report, only simple modifications have to be made to existing digital camera's that causes the photosensor to sample the in-camera light field. "This modification is achieved without altering the external operation of the camera. Coupled with custom software processing, the acquired light fields provide unique photographic capabilities, such as the ability to digitally refocus the scene after exposure, extend the depth of field while maintaining high signal-tonoise ratio, and alter the viewpoint and perspective." You can choose to blur what you what, at what depth of field. Maybe not the next camera I buy will have something like this but the one after that should. Very cool. Visit the website, you will be amazed.