A compact, lightweight standard zoom lens with superior optical performance plus a built-in Image Stabilizer. The IS system reduces the possibility of blurred photographs caused by camera shake, enabling handheld photography in comparatively dim light without a flash or tripod. The IS system is composed of a pair of gyro sensors to detect vertical and horizontal motion and a microprocessor that compensates for it by shifting special lens elements in parallel with the perceived movement. At the wideangle end of the zoom range, the equivalent shutter speed gain is approximately 1.5 stops while at the telephoto end, it is approximately 2 stops. In addition, the lens has a USM drive mechanism for optimum AF performance, and the pulse control diaphragm (EMD) ensures precise aperture control.

EF Lenses: EF 28-135mm f/3.5-5.6 IS USM
A compact, lightweight standard zoom lens with superior optical performance plus a built-in Image Stabilizer. The IS system reduces the possibility of blurred photographs caused by camera shake, enabling hand-held photography in comparatively dim light without a flash or tripod. The IS system is composed of a pair of gyro sensors to detect vertical and horizontal motion and a microprocessor that compensates for it by shifting special IS lens elements in parallel with the perceived movement. At the wide-angle end of the zoom range, the equivalent shutter speed gain is approximately 1.5 stops while at the telephoto end, it is approximately 2 stops. In addition, the lens has a USM drive mechanism for optimum AF performance, and the pulse control diaphragm (EMD) ensures precise aperture control.
EF 28-135mm f/3.5-5.6 IS USM Specifications

• Type: Canon EF mount zoom lens
• Construction: 16 elements in 12 groups (GMo aspherical lens at G14R2)
• Angle of view (Diagonal, 35mm format): 76 degrees - 18 degrees
• Minimum aperture: f/22-f/36
• Minimum focusing distance: 19.7 inches (0.5m)
• Filter size: 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
• AF 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)
• Lens hood: EW-78B
• Lens cap: E-72U
• Case: LP-1116 (soft)