Adding DSLR lenses to a Lumia 1020...(!)
(All About Windows Phone)

Although we can`t embed the video on AAWP, it`s worth a watch anyway by clicking through - a guy called Peraho Qeurtes has partially disassembled and modified a Lumia 1020 to accept DSLR lenses - and, amazingly, it all works, after a fashion. With two competing focussing systems (the 1020`s own PDAF and its own moving optics, plus the DSLR lenses), the user experience will be a train wreck, of course, but 10/10 for commitment to the hobbyist cause...