Olympus M.Zuiko ED 40-150mm F4 Pro

DPReview TV: OM System 40-150mm F4 Pro Review

OM System M.Zuiko Digital ED 40-150mm F4.0 Pro Review

The OM System M.Zuiko Digital ED 40-150mm F4.0 Pro lens covers the tight angles you want for telephoto imaging, and its tough, lightweight build makes it ideal for the outdoors. OM System (formerly Olympus) cameras are a popular choice for photographers who work outside the studio. The Micro Four Thirds sensor format allows for lightweight lens optics that are easier to carry than heftier full-frame glass. The M.Zuiko Digital ED 40-150mm F4.0 Pro ($899.99) is a perfect example—it's a diminutive zoom with telephoto reach and an all-weather construction. Pros should likely stick with the exceptional M.Zuiko ED 40-150mm F2.8 Pro ($1,499.99), but the more affordable ED 40-150mm F4.0 Pro is a worthwhile option for enthusiasts, and an Editors' Choice winner in its own right.Retractable Optics, With Internal Zoom The 40-150mm F4.0 is quite compact, especially when you consider its equivalent full-frame reach (80-300mm). It measures just 3.9 by 2.7 inches (HD), but uses a retracting design to accomplish the feat—you have to twist the zoom ring with a little torque to extend (or retract) the optics. The lens is about 1.2 inches taller when it's extended and ready ...