Taken at a recent Whiskey Tasting in Germany, with only candelight as illumination, ISO 6400 (!), 1/50th at f2.8.
Cleaned up slightly in Lightroom (color balance, black saturation), resized and that is all.
Got the lens recently at Dodd Camera in Cleveland, demo model (had only been mounted once or twice, it was at one of the smaller stores, not the mother store...) for $100 off. :-)
JohnF