Panasonic Lumix G Vario 12-35 f2.8
This is the first constant f2.8 aperture zoom lens from panasonic and the first in the micro four thirds stable. Couple this with the Panasonic 35-100 f2.8 and the 25 f1.4 micro four thirds mount lenses and you'll want for nothing more. These Panasonic lenses are proving to be a fine example of lens design and are very compact making them easier to carry. I prefer using these lenses with the G type Panasonic cameras as I do value the grip.