12-40mm f2.8 Pro lens review.
The Olympus M. Zuiko Digital ED 12-40mm f/2.8 PRO Lens is a wide-angle to portrait-length zoom lens for the Micro Four Thirds system. The 12-40mm focal length provides a 35mm-equivalent field of view of 24-80mm and a constant f/2.8 maximum aperture enables consistent low-light performance and shallow depth of field control throughout the zoom range.
here’s a gallery of review sample shots… https://plus.google.com/photos/...
Olympus’s 12-40mm f/2.8 Pro Lens, Hands on tests… http://www.youtube.com/watch?v=Thq89okcnuI
Additionally, the lens features a dust-proof, freeze-proof, and splash-proof construction that is tailored to its use in inclement conditions.
High-speed imager AF linear motor drive system, with MSC (Movie and Still Image Compatible) support, provides fast, smooth, and quiet focusing performance.
Manual focus clutch permits efficient and intuitive switching between auto and manual focusing control.
The lens construction integrates one aspherical ED (extra-low dispersion) element, two aspherical elements, one DSA (Dual Super Aspherical) element, two extra-low dispersion elements, one HD element, and two HR (high-refractive index) elements into its design to minimise aberrations, distortion, and colour fringing throughout the zoom range while also contributing to overall image sharpness, clarity, and fidelity.
Seven-blade circular diaphragm works to produce an aesthetic out-of-focus quality that is well-suited to shallow depth of field imagery.