Opteka .20x Fisheye Lens for Canon EF EOS 90D 80D 77D 70D 60D 50D 40D 30D 20D 149368833421 | eBay
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Opteka 650-1300mm High Definition Telephoto Zoom Lens
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Amazon.com : Opteka 0.35X Professional Super Wide Angle Fisheye Lens with Macro Close Up for Canon Vixia HF G40, G20, XF205, XF200, XF105, XF100, XA35, XA30, XA25, XA10, XC10, GL2 and GL1
Opteka 12mm f/2.8 Lens for Canon EF-M OPTM1228C B&H Photo Video