The Olympus 35-100mm f/2.0 ED Zuiko Zoom Lens is a high-end, high-performance telephoto lens possesses a fast f2.0 aperture for shooting beautiful low-light pictures or impressively capturing subjects with the background out of focus. Four ED glass lenses and one super ED glass lens produce superior optical clarity and contrast from one edge of the image to the other. This all-digital lens features a built-in CPU that directly communicates with the camera's software for exceptional control and accuracy, and also stands up to the elements with all-metal components and rubber seals to protect against moisture and dust so you can use it practically anywhere.
Please note: To use the Zuiko Digital 35-100mm f2.0 Zoom with the EVOLT E-300, the camera body must be upgraded to firmware version 1.3. Older versions of the firmware may have sporadic freezes with this lens.
The sophisticated line of Zuiko Digital lenses is designed to professional standards to provide professional results in every facet of their use. Coreless motors provide impressive speed. A dedicated computer processor supplies intuitive image data transfer. A wide focal range gives you the flexibility to perfectly frame and capture detailed images near and far. Precision crafted optics--including fine aspherical and ED glass elements--produce the finest image results. And a digital specific design based on the Four Thirds System makes this lens virtually effortless to carry and use. This is not a lens built specifically for the E-1 Digital SLR; it is a lens built specifically for you.
Visit http://www.olympusamerica.com/e1/sup_firmwareupdates.asp for upgrade instructions