Standard zoom lens; 18-200mm f/3.5-5.6. Canon's Optical Image Stabilizer technology allows sharp hand-held shots at shutter speeds up to four stops slower than otherwise possible. 11 elements in 9 groups; aspherical lens element to correct aberration. For EOS 50D, 40D, 30D, 20D, 20Da, Rebel XSi/XS, Digital Rebel XTi/XT and Digital Rebel cameras