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Lightdow 500mm F6.3 Manual Fixed Focus Telephoto Mirror Lens + T2 Mount Adapter Ring for Canon Nikon Pentax Sony DSLR Cameras - AliExpress
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Lentar Lentar 500mm f/8 Mirror Lens - LeZot Camera | Sales and Camera Repair | Camera Buyers | Digital Printing
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Amazon.com : 500mm f/6.3 Manual Focus Telephoto Mirror Lens + 2X Teleconverter = 1000mm for Canon EOS Rebel T6s, T6i, SL1, T5, T5i, T4i, 70D, 60D, 60Da, 7D, 6D, 5D, 5DS R,
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Telephoto 2X Len 500mm Mirror Lens Teleconverter 650-1300mm Lens for 420-800mm & Photo Digital Cmera TANGNADE - Walmart.com
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