I'm currently on the hunt for a new prime lens to use mainly for portraits. It will replace my Nikkor 35/1,8 and be a complement to a 28-75/2,8 and a 70-200/2,8. The 35/1,8 I find too wide for portraits, plus I barely use it since switching to FX since it's a DX lens. I'm using a Nikon D600...