The Canon Zoom Super Wide Angle EF 20-35mm f/43.5-4.5 lens is a must-have lens to cover the super wide-angle category. When using this lens with your Canon Digital Rebel or Canon 20D, 30D or 40D DSLR, it becomes an 22-56 mm lens due to the smaller sensor size in some of the Canon DSLRs. It has 2 Extra-low distortion (EF) glass elements for superior sharpness and color correction, Canon’s USM silent wave motor auto focus operation and Internal Focusing (IF) design for smoother and faster operation.
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