 "Canon telephoto zoom lens" " Canon lens - 6473A003 Camera & Camcorder Lenses CDW.com
"Developed to succeed the EF75-300mm f/4-5.6 II, this compact, lightweight high-magnification telephoto zoom lens covers medium telephoto 75 mm to super telephoto 300mm. Like the EF75-300mm f/4-5.6 III USM, it has a metal ring at the front of the zoom ring to give it an upscale image. It uses a DC motor as AF drive actuator. For environmental protection, only lead-free glass lens elements are used." 
 "Canon EF-S telephoto zoom lens - 55 mm 250 mm" " Canon 8546B002 Camera & Camcorder Lenses CDW.com
"The EF-S 55-250mm f/4-5.6 IS STM telephoto zoom lens offers high magnification in a compact and lightweight EF-S telephoto zoom lens with an optical image stabilizer for up to 3.5 equivalent stops for shake correction. The lens' stepping motor and newly-designed focus mechanism support Canon EOS Movie Servo AF to provide smooth and quiet continuous autofocusing during video shooting, as well as when shooting photos.The EF-S 55-250mm f/4-5.6 IS STM telephoto zoom lens features one UD lens element, reducing chromatic aberration throughout the zoom range for excellent image quality with high resolution and contrast. It features enhanced lens coatings to help ensure superb color balance while minimizing ghosting and flare and a 7-blade circular aperture creates beautiful, soft backgrounds. For outstanding performance, a new compact six-group zoom system provides a maximum magnification of 0.29x at the telephoto end. Full-time manual focus is available in AF mode. The front element does not rotate during focus, which is beneficial when using polarizing filters. Minimum focusing distance is 2.79 ft. /0.85m. The lens' rear focusing system, high-speed CPU and improved AF algorithm allow for high-speed autofocusing." 