Excerpt: Picked this lens up a while back. Decided on the 1.8 over the 1.4 simply because of price. Lens does not disappoint, easy to use, great bokeh. I was pleasantly surprised at the performance based on the price.
Excerpt: I have two of these. One reads so much about sample variation on blogs that I thought I'd buy a second one to see for myself. I tested on a D810. There was a slight difference in sharpness. So slight that I'd not much care which lens I used. Neither had noticeable de-centering.