You know Clinton supporters are desperate when they ' re giving millions to Jill fucking Stein . <| sep |> So did Blashill the following year . They both finished with nearly identical seasons once Babcock left . <| sep |> The votes are . IN the computer ! <| sep |> FWIW , I have both the D 7100 and D 7200 and the D 7200 blows away the D 7100 when it comes to ISO . I ' d say by at least 2 stops . The D 7200 6400 is equal to or better than the D 7100 1600 Be sure to consider the fact that if you go to FX you ' re going to loose quite a bit of reach from your 200500 mm . Most birders I know shoot with DX for this very reason . I played with a D 500 briefly and I have to admit , it ' s ISO performance is comparable to FX , no joke . ISO 6400 was incredibly crisp with hardly any noise . If birding is your focus , I ' d stay with DX . The crop sensors keep getting better and better .