Canon EF 17-40mm f/4L USM Ultra-Wide Zoom Lens Black 8806A002 - Best Buy
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Canon EF 17-40mm f/4L USM | Lens Review - shanelongphotography.com
Canon EF 17-40mm f/4L USM Lens 8806A002 B&H Photo Video
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Canon EF 17-40mm f/4L USM Lens (8806A002) + AOM Pro Starter Bundle Kit - International Version (1 Year AOM Warranty)
