I would not suggest you to buy Rokinon this lens because it's Aspherical Fixed lens. Rokinon is a good lens and in very low price. However 85mm 1.4 for portrit/human purpose. You cannot use Aspherical Fixed lens in most time.
I have Rokinon Aspherical Fixed fisheye that is no auto focus. You will be very disappointed when you shoot in not auto focus, aspherical fixed.