Samsung's NX1 looks and feels like a DSLR in many ways, but don't be fooled - it's an ambitious 28.2MP APS-C mirrorless camera, the first to use a backside-illuminated CMOS chip of that size. It also provides hybrid AF with 205 phase-detect points, 15 fps burst shooting with continuous AF and 4K video recording. As we continue to test the NX1, read our detailed impressions on using the camera in the field.