In this test we used Samsung's 16-50mm f/2-2.8 S ED OIS Lens and the Canon EF 70-200mm f/2.8L IS II USM Lens with a Fotodiox adapter with f stop.
Probably better to use variable neutral density filters to avoid the vignetting that appears on some of the shots.
Now that Adobe Premiere supports h.265 natively, the NX1 is an even more appealing platform. It's only issue was that it was a year ahead of its time. (7Dec2014_1080_Lake_120FPS_ 11220024 23)