The short camera registry of NEX allows for fast lenses to be used on them. Share any images taken with fast lenses and the NEX. Due to the limits imposed by shallow DOF and manual focus, fast captures are not really possible in reality (at least IME). So, the title, clearly, is a misnomer.
Here is one at f/1.2 (ISO1600, 1/160s, NEX-5, LR3.2):
Untitled by Vivek Iyer, on Flickr