Along with the high-end OM-D E-M1, Olympus has also announced a new professional-grade lens for their mirrorless system. Sporting the m4/3 mount, 12-40mm f/2.8 Zuiko lens has an equivalent 24-80mm focal length in 35mm format and is similar to bread-and-butter 24-70mm optics from major DSLR manufacturers.
1) Lens Overview
24-70mm f/2.8 class lenses have long been seen as the most versatile of zooms and were always targeted at professional photographers with their dependable build and fast, constant aperture throughout the zoom range. There is no doubt, looking at the lens’ parameters, that the new Olympus Zuiko 12-40mm f/2.8 builds on the same virtues (which makes the slightly pompous “PRO” designation in the naming sort of unnecessary). The 14 glass elements (9 groups) that make up the optical formula are enclosed in a tough, metal barrel. The lens has appropriate weather sealing and is protected against dust, moisture and cold temperatures. As such, it is a perfect companion to the E-M1.