A lightweight and compact wide-angle lens that is perfect as a companion to a standard lens. Micro Four Thirds compatible

The Panasonic Lumix G Vario 7-14mm f4 is a lightweight and compact wide-angle lens that is perfect as a companion to a standard lens. The Micro Four Thirds-compatible ultra-wide-angle zoom lens (cinema equivalent 14-28mm) has a constant f/4 aperture throughout the focal length range.
The lens structure consists of 16 elements in 12 groups. It uses multi-layered lenses to reduce ghosting and flare, and to improve optical performance. 2 of the elements are aspherical and 4 are ED lenses. The aperture is closed circularly thanks to seven blades, which means that the out-of-focus area remains pleasantly soft when using a larger aperture value.
Specifications:
Compatible with at least the following frames: