Samsung's NX1 seemed to offer pretty much every feature possible when we were first briefed about it last year. Its 28.2MP APS-C BSI sensor, hybrid AF system, 4K video and 15 fps continuous shooting with AF have continued to impress us throughout our extensive testing. Can such an innovative on-paper feature set make it a serious competitor to well-established brands in the DSLR and mirrorless worlds? Find out in our full review.