Nokia Refocus is now available for all Lumia devices running Windows Phone 8. Uptil now it was only available on the PureView devices which include the Lumia 920, Lumia 925, Lumia 928 and the Lumia 1020. The app uses a "focus sweep" to take an image at different focal lengths and then combine them into a single dynamic image where you can adjust the focus at any point in the image.
If you have a Lumia smartphone just head over the Windows Phone Store, if not available just wait a couple of days as the update is rolled out worldwide.
