Red & White -- NEX-5 & Canon FD 50mm f1.4 SSC. Click for larger.
The more I use the Canon FD lenses, the more I feel they are way under appreciated. I especially like the starndard 50/55mm lenses, from FL to nFD mount and all of them are excellent. Well made, optically excellent and all have very pleasing bokeh. The problem is, there are so many variant on the Canon FD 50/55mm lenses that just having one of each will cost a small fortune, not to mention the exceptionally good FD 24mm f1.4L, FD 85mm f1.2L, FD 135mm f2, and the jaw dropping FD 200mm f1.8L which was the brother of the superb EF 200mm f1.8L. Perhaps, it's better to concentrate on the FD line than having so many other brands.