http://www.nikonchat.com/nikkor-50mm-1-8g-2/

AF-S Nikkor 35 mm f / 1.8 G or Nikkor 50mm f/1.4G AF-S?
For my new nikon d7000. I have no specific interest from now. But I think the love of both these lenses. I like bokeh and sharpness. Ideas? Thanks.
In a 35 mm camera or full frame single lens reflex 50 mm is considered "Normal" lens, since it approximates the angle of human eye. With the "crop factor" of 1.5 x D7000 35mm lens will the angle of view equivalent to a 52.5 mm lens on a 35mm camera or full frame DSLR. So the 35 mm lens would act as "normal" of the lens in D7000. In a 35 mm camera or full frame DSLR focal length between 85mm to 105mm focal length is considered ideal for portraits. With 1.5 times the factor crop "of D7000 have a 50mm viewing angle equivalent of a 75mm lens on a 35mm camera or DSLR fill the frame. The target of 50 mm in D7000 will do a good portrait lens. You can save money by buying the Nikon AF 50mm f1.4 lens from the D7000 has a focus motor in the camera body.
AF-S NIKKOR 50mm f/1.8G Focusing Speed