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Amazon.com : Canon EF 100-300mm f/4.5-5.6 USM Telephoto Zoom Lens for Canon SLR Cameras (Discontinued by Manufacturer) : Camera Lenses : Electronics
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Canon EF 100-300mm f4.5-5.6 USM lens on EF-M | ft. Viltrox 0.71x and OEM Adapter First Impressions - YouTube
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