Sony's next-generation QX-series external camera accessory, which wirelessly connects to and is controlled by smartphones like Apple's iPhone, may include an E-Mount attachment for swapping lenses, as well as a dedicated flash.
Sony QX1 review | The Sony QX1 features an APS-C sized sensor and an E-mount capable of accepting different lenses … but there's no screen or viewfinder, instead you use your phone. Reviews | TechRadar
Sony QX1 brings a huge sensor and pro lenses to the smartphone market | Sony has announced a new lens style camera which allows you to use interchangeable lenses and has an APS-C sized sensor. Buying advice from the leading technology site