I got to enjoy the sunset at Bryce Canyon two evenings ago. I used my D600 and new Tokina 17-35 f4 lens. I am happy with the performance of both. Silly me, I had my camera on a tripod and bracketed shots. But I forgot to turn off the auto ISO. Luckily, once the sun went down I didn't need the bracketed shots and this one was only at ISO 250.