Yongnuo has released the YN43, a new clip-on camera for smartphones that turns your phone into a Micro Four Thirds camera with a Canon EF mount.
On the other side of the YN43 is a clip that expands to fit smartphones of all different sizes. How it works is you attach your smartphone to the clip, and this becomes your live view screen.
Next you mount a Canon lens (the YN43 can support EF and EF-S). You then control capture via the Yongnuo YN43 app, which is available for iOS from the App Store.
Judging from the app’s screenshots, it appears you have control over the standard exposure settings, plus different shooting modes and playback options.
A Yongnuo YN43 price tag and release date haven’t been announced by the Chinese manufacturer at the time of writing.