Nikon D700 and Nikkor 85mm f/1.4 AF-D lens. When I had a 35-70mm f/2.8 zoom lens I noticed that I was using the 70mm end more or less all the time. So I reasoned that an f/1.4 85mm prime lens would suit my style better, as well as admitting four times as much light.
For this photograph, the ISO was 400, the shutter speed 1/125th, and the aperture f/4.