Type: Canon EF mount zoom lens. Construction: 16 elements in 12 groups (GMo aspherical lens at G14R2) View of Angle (Diagonal, 35mm format): 76 degrees - 18 degrees Min. aperture: f/22-f/36 Min. focusing distance: 19.7 inches (0.5m) Size of Filter: 72mm Functions: AF, AE operation, auto aperture, full aperture metering, full-time manual focusing also possible IS max. correctable angle: +/- 0.65 degrees at infinity Auto Focus system: Internal focusing with Ultrasonic Motor (USM) Diaphragm: Pulse control EMD (electromagnetic diaphragm) Coating: Super Spectra Length: 3.1 inches (78.4mm) Diameter: 3.8 inches (96.8mm) Weight: 17.6 oz (500g) Optional Lens hood: EW-78B Lens Cap: E-72U This is a high-magnification standard zoom lens with 5X zoom ratio, ranging from wide-angle of 28mm to medium-telephoto of 135mm. This lens features a built-in compact Image Stabilizer(IS) unit, which is newly developed for this lens. This new compact IS unit and a compact optical system with multi-lens-group zoom design achieves compact and lightweight design of high-magnification zoom lens. The IS system is the same as other IS lenses. The image stabilizing effect is equivalent to about two steps of shutter speed. The optical system uses a molded glass (GMo) aspherical lens element(14th) to provide sharp definition throughout the entire zoom range. A ring USM (Ultrasonic Motor) and inner focusing system assures silent and high-speed AF and full-time manual focusing. Very handy for places where flash is prohibited. Uses ring-type USM for swift, silent autofocus and full-time manual focus.
