The Olympus 40-150mm f/4-5.6 Zuiko ED Zoom Lens for Olympus DSLRs (Four Thirds System) is specifically designed to work perfectly with Olympus E-System cameras. You'll find over 20 digital lenses - the most in the industry - giving photographers unparalleled choice. All Zuiko lenses are seamlessly matched to Olympus' Four Thirds Image Sensor to provide images of uncompromising edge-to-edge sharpness.
Built to be digital specific. Unlike traditional film lenses, Zuiko Digital lenses deliver light directly to each of the imager's pixels. The results are photos with rich, accurate color, high contrast and subtle gradation. No blurriness at the edges.
A lens that promotes sharpness. Photos taken with older, designed-for-film lenses are clear and sharp at the center, but may lack clarity around the edges - a problem that worsens in wide and ultra-wide angles and when used at larger apertures. This Zuiko Digital lens features optics designed for digital photography and, with an ED glass element, provides sharpness across the entire photograph. At all apertures.
Meticulously crafted from ED glass. This Zuiko lens is made with ED glass elements to minimize the amount of light refraction that occurs with normal optical glass. With this "rainbow effect" reduced, light travels straighter, producing images that are amazingly sharp without smearing or chromatic aberrations or flaring. Photos shot with lenses using ED glass better produce the true color and detail.
Engineered to be smart and tough. These lenses are built to handle the rugged demands of the field. They provide images that are sharp and are half the size and weight of competitors. All Zuiko lenses contain a built-in CPU that actively communicates with the camera to correct any potential shading and distortion problems. And it is user upgradeable. Something impossible with film lenses.