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Mashup: Weird lens week] No Brand EF-S 2X extender with 55-250 STM IS f/5.6 on Canon t6i @ 500 mm equivalent. Only 2X EF-S (not EF) extender out there? : r/canon
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Commander Optics Super 500mm / 1000mm (with 2X Teleconverter) f/8 Manual Telephoto Lens for Canon EOS EF-S DSLR Cameras + T-Mount + Monopod & Lens Bag - Walmart.com
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