Canon EF 17-40mm F4 L USM Price Comparison

An 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 28cm, and offers both Canon's full-time manual focus and a powerful ring-type USM for fast and silent AF.
From £529.99 to £623.95