The 645 PRO is an iOS app that was programmed and created by Jag.gr. It is supposed to provide unprecedented control and unparalleled image quality for ‘iPhoneographers’. Your iOS device will produce picture results as if you were using a real camera by giving it pro camera functions through using the app.
“645 PRO has been designed, from the ground up, for professional and serious amateur photographers. So it works the way a camera works, not some piece of computer software.
Every setting is managed directly from the camera—no layers of menus to negotiate. You have instant access to everything that can be controlled, from focus/exposure and white balance locking to a 645 PRO-exclusive choice between spot and multi-zone metering.”
645 PRO is available to download at the iTunes store.