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Leighton, the bokeh above of the 50/1.4 S or SC is a wee bit enhanced by the SEP-treatment.
But this lens can literally "kill" a picture with it's bokeh. Here's a shocking example from early 2010 - a staged shot in the school (dreaming about the coming holidays). Please note the rendering of the kids in the background.
I hate to have admit this, but the modern AF-S 50/1.4G or 50/1.8G are much better in this regard.
horrible background rendering: Ai'd Nikkor S or SC 50/1.4 wide-open on a D700, bounced flash, staged shot