In previous articles we could see how a fast 85mm can be used for shallow depth-of-field to shoot nearly anywhere by melting away the background. There's another aspect to this - the bokeh of the lens. The bokeh is a reference to how the quality of the background blur is rendered by a lens. It can be smooth, or have "jittery" patterns to the edges of objects, and the highlights.
Do note though that bokeh and shallow depth-of-field are not quite the same thing. While the DoF / choice of aperture does affect the appearance of the bokeh of Read more inside...
85mm - The best lens that could change your portrait photography
If that hat seems familiar, yes, Elle was the model in the series of photographs for the Nikon Df review article. For some of the sequences of photos that we shot, I used the 85mm lens, wide open. This had the effect of just melting the background. You can pretty much shoot anywhere, and make the background look good and non-intrusive.
While a 70-200mm f/2.8 lens can be even more effective in controlling the background, the shorter focal length, an 85mm lens can make this somewhat easier in some respects. Read more inside...