Many photogarphers get so engrossed in the detail of their image, that they leave out the subject’s feet or the top of someone’s head.
To help with such errors in portraits, today’s invention is a software tool, based on an established heuristic for composition.
When a camera detected a single face within a shot, it would automatically place one eye within a Fibonnaci spiral overlay.
This would appear on the display back, showing the photographer how much to zoom and/or crop to create a much more striking arrangement.
So here someone has now implemented a version of this…http://lifehacker.com/5891440/camera-awesome-is-an-iphone-camera-upgrade-that-earns-its-title