Panasonic LUMIX G 7-14mm f/4 ASPH. Lens (Black)Spanning a useful range of wide angle focal lengths, the Lumix G Vario 7 14mm f 4 ASPH. from Panasonic is a versatile wide zoom for Micro Four Thirds cameras, and offers a 14 28mm equivalent focal length. Well suited for landscape, nature, and architectural applications, the wide field of view is complemented by a constant f 4 maximum aperture for consistent illumination throughout the zoom range. The optical design makes use of low dispersion and