http://www.nikonchat.com/nikkor-f1-4-85mm-lens/

Thoughts on Nikkor 85mm f1.4?
I am interested in buying this lens as I own the awesome 50mm f1.4, would you recommend this? Its not for a specific purpose, but I own these following lenses and thought it might complete it: sigma 10-20mm, nikkor 50mm and 70-300mm. Would you say it fits in nicely or should I go for a different lens. Budget is an issue, or else would have bought sigma 150mm macro.
I assume you mean the old 85mm f1.4? Very nice lens but somewhat limited. As a mild tele it is an extreme portrait lens due to it’s creamy bokeh. It’s not much good for other things.
Set your 70-300 on 85mm for a day and see what you think.
Nikon 85 1.4 AFS