In a statement released today (and reproduced below in full) ARRI has announced that its Amira camera will can be upgraded to record UHD (not 4K) internally, as UHDProRes
As we saw in my previous article on sensor technology, we can now build sensors with enormous numbers attached to them - if not trivially, at least reliably. Given that current 4K sensors are more than adequate to replace 35mm film in terms of sheer resolution, we need to be careful about turning this into a numbers game.
Can you make a feature film with an iPhone? Well, "yes" is the answer if you don't mind a slightly fuzzy-looking picture on a big screen, and if you sit far enough away, but you can certainly get a cinematic "look" if you use cinema-type techniques when you make your film, and some software to give your work its finishing touches.
We're pretty sure Arri doesn't need any help from us to sell their popular Alexa cameras, but we found this clip from an Arri-staged event at IBC 2012 that features Roger Deakins, the award-winning Chief Cinematographer on Skyfall.