Ef-m 55-200mm F/4.5-6.3 Is Stm The EF-M 55–200mm f/4.5–6.3 IS STM is an excellent choice to pair with your EOS M series digital camera, offering an extended zoom range for shooting architecture, portraits and more. It adds excellent telephoto abilities, with an advanced 5-group optical system designed to deliver superb image quality in a portable design. Whether photographing a bird in flight or filming a performance in a dimly lit auditorium, the EF-M 55–200mm f/4.5–6.3 IS STM has impressive Image Stabilization technology to help capture still and motion photography handheld, plus a speedy STM focusing system for fast, smooth and quiet operation. Manual focus lets you make fine adjustments on the fly, and is easily accessed with the lens's AF+MF mode. Delivering stellar image quality in a lightweight, compact and easy-to-use package, the EF-M 55–200mm f/4.5–6.3 IS STM is an ideal lens to add to an EOS M series digital camera.