The Canon EF-S 18-200mm f/3.5-5.6 IS Lens is a compact and lightweight wide zoom range lens that is specifically designed for the range of EOS digital SLR cameras that use the smaller EF-S lens mount. Combining powerful performance with high image quality, this lens offers the equivalent of 29-320mm in 35mm format. It is ideal for use as a general-purpose zoom lens, providing coverage from a wide angle to a telephoto perspective. The EF-S 18-200mm f/3.5-5.6 IS lens incorporates Canon's 4-stop compensation Image Stabilizer technology. This allows the use of shutter speeds up to 4 times slower with no perceptible increase in image blur. Automatic panning detection automatically turns off the Image Stabilizer in either the horizontal or vertical direction when following moving subjects. Note! Only fits on the EOS Digital Rebel Series or 20D, 30D, 40D 50D SLR cameras ? Image Stabilizer 4 stop Image Stabilizer (IS) extends low light options to previously unavailable levels. Photographers normally shooting handheld at 1/250 sec can switch on IS to obtain a similarly steady and blur-free result with a shutter speed of just 1/15 second. ? Superior Image Quality Two UD (Ultra-low Dispersion) elements and several aspherical elements are used to suppress the effects of secondary chromatic aberrations, to obtain crisp, sharp, high-contrast images without fringing throughout the zoom range. ? Super Spectra Coatings Optimized Super Spectra lens coatings and lens element shaping, suppress flare and ghosting - more prone to occur with digital cameras due to reflection of the image sensor. Coatings also help achieve true color balance and increase contrast for vivid hi-fidelity images.