 "Canon EF-S zoom lens - 18 mm 55 mm" " Canon 8114B002 Camera & Camcorder Lenses CDW.com
"Designed for high-quality still image and video capture while being compact and lightweight, the EF-S 18-55 mm f/3.5-5.6 IS STM lens features the optics, AF and image stabilization necessary for shooting in any number of situations. For brilliant image quality it has one high-precision aspheric lens to reduce chromatic aberration throughout the zoom range. It features optimized lens coatings to ensure exceptional color balance while minimizing ghosting and flare and a 7-blade circular aperture to ensure beautiful, soft backgrounds. For outstanding performance, the EF-S 18-55 mm f/3.5-5.6 IS STM lens perfectly complements the movie servo AF feature found on select EOS cameras with a compact six-group zoom system and a stepping motor and focus mechanism to deliver smooth and quiet continuous AF during movie shooting. Still photography benefits from a high-speed CPU and an optimized AF algorithm. Full-time manual focus is available in AF mode and the front element does not rotate during focus, perfect for use with polarizing filters. Handheld photography is enhanced by the lens' optical image stabilizer system, offering the equivalent of four stops of compensation. Compact and highly versatile, it is the ideal lens to carry anywhere." 
 "Canon EF 17-40mm f/4 L USM Lens"@en "Camera Lenses :: Canon Lens - Onestop Digital"@en
"A new and affordable L-series ultra-wide-angle zoom lens that's ideal for both film and digital SLRs. Superior optics are assured by the use of three aspherical lens elements  in addition to a Super UD (Ultra-low Dispersion) glass element. Optical coatings are optimized for use with digital cameras. This lens focuses as close as 11 inches (0.28m)  and offers both Canon's full-time manual focus and a powerful ring-type USM for fast and silent AF. It has a constant f4 maximum aperture  and offers the choice of screw-in 77mm filters or a holder in the rear of the lens for up to three gel filters. Finally  it offers weather-resistant construction similar to other high-end L-series lenses.  "@en 