Where greater zoom is required, the EF-S18-135mm f/3.5-5.6 IS is a cost-effective solution, delivering high zoom performance and image quality. Offering a broad 7.5x zoom range (29-216mm equivalent in 35mm format), this lens is ideal for a great range of subjects and situations. Built-in image stabilization gives up to four-stop advantage in shutter speed, and the system will also distinguish between normal shooting and panning shots and automatically select the optimum IS mode for best image results. In terms of optics, the use of UD lenses and high precision aspherical lenses corrects all manner of lens aberrations, supplemented by special coatings and optimised lens disposition to cut flare and ghosting.