With my new Nikon Df, I am playing a bit with different lenses. I have bought a couple which are specific for FX Nikons, though much of what I have – old glass – works just fine. Because my ultra-wide angle lens is for the Dx format, and I am heading out for a trip soon, I did a bit of research for a prime wide angle. I came across the Tokina 17mm f3.5 ATX, and it seems pretty nice. Of course, I need to take it out on a walk to see how it does, but I think I will like it quite a bit!