Lightweight, compact telephoto zoom EF-M lens features a 5-group optical zoom system, and combines superb image quality and an extremely portable design for easy carrying Optical Image Stabilizer technology helps reduce camera shake, and achieves a level of sharpness equivalent to a shutter speed 3.5 settings faster for great performance even when using handheld photography Stepping-motor (STM) focusing technology helps provide smooth and quiet operation when taking photos, and near silence when shooting videos One aspheric lens element and one UD lens element help to deliver outstanding results at all zoom settings by reducing chromatic aberration High speed, high precision autofocusing is achieved by utilizing the full-time manual focus mode (AF+MF) to make fine adjustments after focusing