The Olympus 14-54mm ƒ/2.8-3.5 Zuiko digital lens presents a comfortable walk-around solution for a photographer; a reasonably light lens with a fast aperture and useful range of focal lengths. Combined with in-camera image stabilization and fast auto-focusing, this lens should be a real winner; does our lab testing bear this out?
Since Olympus digital SLR cameras employ the four-thirds imaging sensor, any lens attached to the body will have an effective focal length (in 35mm terms) of double the listed length. Thus, for this particular lens, it will exhibit an effective focal length of 28-108mm. The lens takes 67mm filters, and comes with a petal-shaped lens hood. It's available now for around $450. Read the whole test here