A flexible zoom designed for both stills and video recording, the EF-S 18-135mm f/3.5-5.6 IS STM Lens from Canon is a 28.8-216mm equivalent wide-to-tele zoom designed for APS-C-format DSLRs. Benefitting multimedia image-makers, an STM stepping motor is used to deliver quick, quiet and smooth focusing performance that works in conjunction with select cameras' Movie Servo AF. An optical image stabilization system is also featured, to minimize the appearance of camera shake, and Dynamic IS specifically supports video applications by compensating for camera shake caused while walking during recording. Besides these performance attributes, the lens' optical design also incorporates one aspherical element and one UD element to reduce both spherical and chromatic aberrations for increased sharpness, clarity, and color accuracy.