Panasonic Lumix S PRO 16-35mm f/4 LensA staple of wide angle versatility, the Lumix S PRO 16 35mm f 4 from Panasonic is an L mount wide zoom featuring an f 4 constant maximum aperture. An optimized optical design incorporates a series of aspherical, low dispersion, and high refractive index elements, to control a variety of aberrations, color fringing, and distortion for sharp, clear, well corrected imagery throughout the zoom range. Complementing the optics is a unique double magnet