The Sigma 18-50mm f/2.8 zoom lens is the perfect accessory for your Canon EF-S/EF mount camera. This lens offers stunningly clear images throughout its zoom range and auto-focuses internally. This lens is part of the professional series of Sigma lenses, which are notable for their high mechanical and optic quality. Without an 18-50mm zoom lens, no photographer's arsenal is truly complete. Add the 18-50mm zoom lens to your collection today to add versatility to your lens collection.