Pink Bell -- NEX-5 & Industar 50mm f3.5 @ f3.5. Click to see larger.
Over the years, I have had a few Russian lenses. Most of them were copies of the Zeiss designer, such as the 85mm f2 (Sonnar) and 58mm f2 (Biotar). The Industar 50mm f3.5 is a tiny pancake lenses that I picked up at the Photo Show on the weekend. This lens is a copy of the Tessar design and produces surprisingly good and pleasing pictures. As with most Tessar lenses, this on is sharp wide open and very sharp stopped down.
If you are looking for that Zeiss look, but don't want to pay through the nose, these old Russian lenses are good alternatives.