The EF-S 18-200mm f/3.5-5.6 IS Lens from Canon is a compact, lightweight and very versatile zoom lens that is specifically designed for the range of APS-C format EOS DSLR cameras with the EF-S lens mount. Combining powerful performance with high image quality, this lens offers the equivalent focal length range of 29-320mm in 35mm format. It is ideal 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. Aspherical and UD lens elements minimize aberrations and contribute to overall image quality and fine delineation. A zoom lock lever holds the zoom in place at its widest point so that it does not extend while not in use. A wide rubberized zoom ring provides smooth and comfortable control over focal length adjustment.