Canon EF 17-40mm f/4.0L USM

The Canon EF 17-40mm f/4.0L USM is a wide-angle zoom lens that is very capable on full frame and crop sensors (equivalent focal length 27-64mm), extremely solid and built for everyday wide-angle use. If wide-angle is your thing, then this zoom will give you great quality across its focal range. Design The Canon EF 17-40mm

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