Nikon certainly threw a curve ball with the Df. On the one hand it has the first-rate sensor of the D4 in a much more compact and lighter weight body, but the choice of retro controls appears to be a step backwards.

They make sense with older manual focus lenses, with their manual aperture rings, providing they can be focused accurately but models like the F100 and F6 are proven over those earlier models when used with autofocus lenses, and that includes the current G-series (which lack aperture rings).

As it stands, Nikon may find the Df sidelined by both the D800, and the D600, which is a pity as the sensor is a superb performer in low light.