I picked up two new lenses for my upcoming trip to India. I was in dire need of a fast, mid range lens and the Canon 50 1.2 fit the bill. I picked up the Canon 40mm 2.8 as well, looking for a cheap, small, discrete, lightweight lens. Some test shots below. I was shooting in small jpeg mode so the quality isn't what it could be. Was more interested in focusing speed and DOF.
A shot from the 50mm. I think this was at 2.5. The depth of field at 1.2 is incredibly narrow. The 40 isn't much larger than the bottom lens and body caps when they are screwed together.
Two shots from the 40. For a such a small lens it packs a nice punch.