Olympus M.Zuiko 14-42mm f/3.5-5.6 II R Lens
The M.Zukio is a 14-42mm compact, lightweight zoom lens that only weighs 113g. Ideal for everyday use, from street shots to portraits. The MSC mechanism provides fast and silent auto focusing for movie and still image shooting.
This lens is also a popular as a kit lens with the Olympus range of cameras, it pairs up with the 40-150mm very nicely.
Compact, lightweight zoom useful for everyday use
There is also a more compact (EZ) version of this lens, see here