Olympus M.ZUIKO Digital 12-40mm f/2.8 Pro Review

Main Rivals
Listed below are some of the rivals of the Olympus M.ZUIKO Digital 12-40mm f/2.8 Pro.
Olympus M.Zuiko Digital ED 12-50mm f/3.5-6.3 EZ
The M.Zuiko Digital ED 12-50mm f/3.5-6.3 EZ is a new standard zoom lens from Olympus for the Micro Four Thirds system. Offering a 24-100mm focal length, fast and near-silent focusing and a variable-speed electromagnetic zoom mechanism, this weather-sealed lens makes the perfect walk-around partner for the new OM-D E-M5 camera body. Read our in-depth Olympus M.Zuiko Digital ED 12-50mm f/3.5-6.3 EZ review.
Panasonic LUMIX G X VARIO 12-35mm F2.8 ASPH
The Panasonic LUMIX G X VARIO 12-35mm F2.8 ASPH is a new premium standard zoom lens for the Micro Four Thirds system of interchangeable lens cameras. Offering an effective focal range of 24-70mm in 35mm terms, the Panasonic 12-35mm lens boasts a fast constant aperture of F2.8, fast and quiet auto-focusing, quality construction and weather sealing. Read our in-depth Panasonic LUMIX G X VARIO 12-35mm F2.8 ASPH review, complete with 60 sample images, to find out if it's a must-have lens for Micro Four Thirds photographers.