This 85mm f/1.4 ED SSA (Super Sonic Actuator) is a professional prime lens from Samsung Electronic, made for their NX-mount line of cameras including the NX1. It is a very sharp lens with fully automatic electronic functionality with the NX1 via firmware. The only drawback with this lens is the automatic focusing which can be clunky at time - hunting for the right focus especially when light is poor or when you add a Neutral Density (ND) filter.
The photographs below are presented 'as-photographed'. These photographs show the exceptional imaging quality of the Samsung NX1 camera with its back-lit 28-megapixel APS-C sensor.
Note: With sensor crop factor, this lens images at 35mm focal length equivalent of 130mm